shop manual im trouble shoot section_prelimary.pdf
TRANSCRIPT
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960E-1 1
CEN40001-00
DUMP TRUCK1SHOPMANUAL
960E-1
Machine model Serial number
960E-1 A30001 and up
00 TroubleshootingTroubleshooting
Method of using troubleshooting charts ................................................................................................................ 3
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NOTES
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Fault Code A001: Left front suspension pressure sensor signal high
Related circui t diagram
Operator Action None
Fault Code A001
Description Left front suspension pressure sensor signal high.
Fault Conditions Sets if pressure signal is out of range high (sensor current over 22 ma).Resets if reading returns to normal.
Operator Alerting
System Response
Repair Lamp
Display Operator Action: None
Display Fault Description: PLM LF PRESS SENS HI
Display Fault Code: A001
Resulting Problem(s) Bad payload computation.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault is generated by PLM3 in response to a problem in the sensor circuit. This sensor circuit may havea related fault that can be used to resolve the problem. Refer to the Troubleshooting Instructions for the active
parameter fault(s).
2. If there are no active parameter fault codes, then based on the truck's setup while this fault is active, deter-
mine which of the parameters in the Table is not shown in its expected state on the IM Realtime Data Monitor
program. Refer to the schematic to identify which item(s) may be causing the parameter(s) to be in the unex-
pected state. Troubleshoot these items.
3. If this fault is not currently active or if no parameters are currently in the unexpected state and the malfunc-
tion is still unresolved, then check each of the parameters in the Table for proper functionality. Troubleshoot all
item(s) related to the parameter(s) which are found to be malfunctioning.
Parameter Expected State and/or Related Fault(s)
Left Front Pressure
Sensor (PLM3 36,39)
Sensor current >22 ma: failed high
Sensor current 2 ma but less than 22 ma: valid readings
Fault(s): A002
LEFT FRONTSUSPENSION
PRESSURE
LEFT DECKJUNCTION BOX
+18V
LF PRESSURE
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Fault Code A002: Left front suspension pressure sensor signal low
Related circui t diagram
Operator Action None
Fault Code A002
Description Left front suspension pressure sensor signal low.
Fault Conditions Sets if pressure signal is out of range low (sensor current less than 2 ma).Resets if reading returns to normal.
Operator Alerting
System Response
Repair Lamp
Display Operator Action: None
Display Fault Description: PLM LF PRESS SENS LO
Display Fault Code: A002
Resulting Problem(s) Bad payload computation.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault is generated by PLM3 in response to a problem in the sensor circuit. This sensor circuit may havea related fault that can be used to resolve the problem. Refer to the Troubleshooting Instructions for the active
parameter fault(s).
2. If there are no active parameter fault codes, then based on the truck's setup while this fault is active, deter-
mine which of the parameters in the Table is not shown in its expected state on the IM Realtime Data Monitor
program. Refer to the schematic to identify which item(s) may be causing the parameter(s) to be in the unex-
pected state. Troubleshoot these items.
3. If this fault is not currently active or if no parameters are currently in the unexpected state and the malfunc-
tion is still unresolved, then check each of the parameters in the Table for proper functionality. Troubleshoot all
item(s) related to the parameter(s) which are found to be malfunctioning.
Parameter Expected State and/or Related Fault(s)
Left Front Pressure
Sensor (PLM3 36,39)
Sensor current >22 ma: failed high
Sensor current 2 ma but less than 22 ma: valid readings
Fault(s): A001
LEFT FRONTSUSPENSION
PRESSURE
LEFT DECKJUNCTION BOX
+18V
LF PRESSURE
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Fault Code A003: Right front suspension pressure sensor signal high
Related circui t diagram
Operator Action None
Fault Code A003
Description Right front suspension pressure sensor signal high.
Fault Conditions Sets if pressure signal is out of range high (sensor current over 22 ma).Resets if reading returns to normal.
Operator Alerting
System Response
Repair Lamp
Display Operator Action: None
Display Fault Description: PLM RF PRESS SENS HI
Display Fault Code: A003
Resulting Problem(s) Bad payload computation.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault is generated by PLM3 in response to a problem in the sensor circuit. This sensor circuit may havea related fault that can be used to resolve the problem. Refer to the Troubleshooting Instructions for the active
parameter fault(s).
2. If there are no active parameter fault codes, then based on the truck's setup while this fault is active, deter-
mine which of the parameters in the Table is not shown in its expected state on the IM Realtime Data Monitor
program. Refer to the schematic to identify which item(s) may be causing the parameter(s) to be in the unex-
pected state. Troubleshoot these items.
3. If this fault is not currently active or if no parameters are currently in the unexpected state and the malfunc-
tion is still unresolved, then check each of the parameters in the Table for proper functionality. Troubleshoot all
item(s) related to the parameter(s) which are found to be malfunctioning.
Parameter Expected State and/or Related Fault(s)
Right Front Pressure
Sensor (PLM3 36,20)
Sensor current >22 ma: failed high
Sensor current 2 ma but less than 22 ma: valid readings
Fault(s): A004
RIGHT FRONTSUSPENSION
PRESSURE
RIGHT DECKJUNCTION BOX
+18V
RF PRESSURE
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Fault Code A004: Right front suspension pressure sensor signal low
Related circui t diagram
Operator Action None
Fault Code A004
Description Right front suspension pressure sensor signal low.
Fault Conditions Sets if pressure signal is out of range low (sensor current less than 2 ma).Resets if reading returns to normal.
Operator Alerting
System Response
Repair Lamp
Display Operator Action: None
Display Fault Description: PLM RF PRESS SENS LO
Display Fault Code: A004
Resulting Problem(s) Bad payload computation.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault is generated by PLM3 in response to a problem in the sensor circuit. This sensor circuit may havea related fault that can be used to resolve the problem. Refer to the Troubleshooting Instructions for the active
parameter fault(s).
2. If there are no active parameter fault codes, then based on the truck's setup while this fault is active, deter-
mine which of the parameters in the Table is not shown in its expected state on the IM Realtime Data Monitor
program. Refer to the schematic to identify which item(s) may be causing the parameter(s) to be in the unex-
pected state. Troubleshoot these items.
3. If this fault is not currently active or if no parameters are currently in the unexpected state and the malfunc-
tion is still unresolved, then check each of the parameters in the Table for proper functionality. Troubleshoot all
item(s) related to the parameter(s) which are found to be malfunctioning.
Parameter Expected State and/or Related Fault(s)
Right Front Pressure
Sensor (PLM3 36,20)
Sensor current >22 ma: failed high
Sensor current 2 ma but less than 22 ma: valid readings
Fault(s): A003
RIGHT FRONTSUSPENSION
PRESSURE
RIGHT DECKJUNCTION BOX
+18V
RF PRESSURE
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Fault Code A005: Left rear suspension pressure sensor signal high
Related circui t diagram
Operator Action None
Fault Code A005
Description Left rear suspension pressure sensor signal high.
Fault Conditions Sets if pressure signal is out of range high (sensor current over 22 ma).Resets if reading returns to normal.
Operator Alerting
System Response
Repair Lamp
Display Operator Action: None
Display Fault Description: PLM LR PRESS SENS HI
Display Fault Code: A005
Resulting Problem(s) Bad payload computation.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault is generated by PLM3 in response to a problem in the sensor circuit. This sensor circuit may havea related fault that can be used to resolve the problem. Refer to the Troubleshooting Instructions for the active
parameter fault(s).
2. If there are no active parameter fault codes, then based on the truck's setup while this fault is active, deter-
mine which of the parameters in the Table is not shown in its expected state on the IM Realtime Data Monitor
program. Refer to the schematic to identify which item(s) may be causing the parameter(s) to be in the unex-
pected state. Troubleshoot these items.
3. If this fault is not currently active or if no parameters are currently in the unexpected state and the malfunc-
tion is still unresolved, then check each of the parameters in the Table for proper functionality. Troubleshoot all
item(s) related to the parameter(s) which are found to be malfunctioning.
Parameter Expected State and/or Related Fault(s)
Left Rear Pressure
Sensor (PLM3 36,30)
Sensor current >22 ma: failed high
Sensor current 2 ma but less than 22 ma: valid readings
Fault(s): A006
LEFT REARSUSPENSION
PRESSURE REAR AXLEJUNCTION BOX
+18V
LR PRESSURE
Should TB39-V be here?
Missing in newschematic.
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Fault Code A006: Left rear suspension pressure sensor signal low
Related circui t diagram
Operator Action None
Fault Code A006
Description Left rear suspension pressure sensor signal low.
Fault Conditions Sets if pressure signal is out of range low (sensor current less than 2 ma).Resets if reading returns to normal.
Operator Alerting
System Response
Repair Lamp
Display Operator Action: None
Display Fault Description: PLM LR PRESS SENS LO
Display Fault Code: A006
Resulting Problem(s) Bad payload computation.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault is generated by PLM3 in response to a problem in the sensor circuit. This sensor circuit may havea related fault that can be used to resolve the problem. Refer to the Troubleshooting Instructions for the active
parameter fault(s).
2. If there are no active parameter fault codes, then based on the truck's setup while this fault is active, deter-
mine which of the parameters in the Table is not shown in its expected state on the IM Realtime Data Monitor
program. Refer to the schematic to identify which item(s) may be causing the parameter(s) to be in the unex-
pected state. Troubleshoot these items.
3. If this fault is not currently active or if no parameters are currently in the unexpected state and the malfunc-
tion is still unresolved, then check each of the parameters in the Table for proper functionality. Troubleshoot all
item(s) related to the parameter(s) which are found to be malfunctioning.
Parameter Expected State and/or Related Fault(s)
Left Rear Pressure
Sensor (PLM3 36,30)
Sensor current >22 ma: failed high
Sensor current 2 ma but less than 22 ma: valid readings
Fault(s): A005
LEFT REARSUSPENSION
PRESSURE REAR AXLEJUNCTION BOX
+18V
LR PRESSURE
Should TB39-V be here?
Missing in newschematic.
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Fault Code A007: Right rear suspension pressure sensor signal high
Related circui t diagram
Operator Action None
Fault Code A007
Description Right rear suspension pressure sensor signal high.
Fault Conditions Sets if pressure signal is out of range high (sensor current over 22 ma).Resets if reading returns to normal.
Operator Alerting
System Response
Repair Lamp
Display Operator Action: None
Display Fault Description: PLM RR PRESS SENS HI
Display Fault Code: A007
Resulting Problem(s) Bad payload computation.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault is generated by PLM3 in response to a problem in the sensor circuit. This sensor circuit may havea related fault that can be used to resolve the problem. Refer to the Troubleshooting Instructions for the active
parameter fault(s).
2. If there are no active parameter fault codes, then based on the truck's setup while this fault is active, deter-
mine which of the parameters in the Table is not shown in its expected state on the IM Realtime Data Monitor
program. Refer to the schematic to identify which item(s) may be causing the parameter(s) to be in the unex-
pected state. Troubleshoot these items.
3. If this fault is not currently active or if no parameters are currently in the unexpected state and the malfunc-
tion is still unresolved, then check each of the parameters in the Table for proper functionality. Troubleshoot all
item(s) related to the parameter(s) which are found to be malfunctioning.
Parameter Expected State and/or Related Fault(s)
Right Rear Pressure
Sensor (PLM3 36,40)
Sensor current >22 ma: failed high
Sensor current 2 ma but less than 22 ma: valid readings
Fault(s): A008
RIGHT REARSUSPENSION
PRESSURE REAR AXLEJUNCTION BOX
+18V
RR PRESSURE
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Fault Code A008: Right rear suspension pressure sensor s ignal low
Related circui t diagram
Operator Action None
Fault Code A008
Description Right rear suspension pressure sensor signal low.
Fault Conditions Sets if pressure signal is out of range low (sensor current less than 2 ma).Resets if reading returns to normal.
Operator Alerting
System Response
Repair Lamp
Display Operator Action: None
Display Fault Description: PLM RR PRESS SENS LO
Display Fault Code: A008
Resulting Problem(s) Bad payload computation.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault is generated by PLM3 in response to a problem in the sensor circuit. This sensor circuit may havea related fault that can be used to resolve the problem. Refer to the Troubleshooting Instructions for the active
parameter fault(s).
2. If there are no active parameter fault codes, then based on the truck's setup while this fault is active, deter-
mine which of the parameters in the Table is not shown in its expected state on the IM Realtime Data Monitor
program. Refer to the schematic to identify which item(s) may be causing the parameter(s) to be in the unex-
pected state. Troubleshoot these items.
3. If this fault is not currently active or if no parameters are currently in the unexpected state and the malfunc-
tion is still unresolved, then check each of the parameters in the Table for proper functionality. Troubleshoot all
item(s) related to the parameter(s) which are found to be malfunctioning.
Parameter Expected State and/or Related Fault(s)
Right Rear Pressure
Sensor (PLM3 36,40)
Sensor current >22 ma: failed high
Sensor current 2 ma but less than 22 ma: valid readings
Fault(s): A007
RIGHT REARSUSPENSION
PRESSURE REAR AXLEJUNCTION BOX
+18V
RR PRESSURE
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Fault Code A009: Incline sensor signal high
Related circui t diagram
Operator Action None
Fault Code A009
Description Incline sensor signal high.
Fault Conditions Sets if incline signal is out of range high (sensor voltage less than 0.565 volts).Resets if reading returns to normal.
Operator Alerting
System Response
Repair Lamp
Display Operator Action: None
Display Fault Description: INCLINE SENSOR HIGH
Display Fault Code: A009
Resulting Problem(s) Bad payload computation.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault is generated by PLM3 in response to a problem in the sensor circuit. This sensor circuit may havea related fault that can be used to resolve the problem. Refer to the Troubleshooting Instructions for the active
parameter fault(s).
2. If there are no active parameter fault codes, then based on the truck's setup while this fault is active, deter-
mine which of the parameters in the Table is not shown in its expected state on the IM Realtime Data Monitor
program. Refer to the schematic to identify which item(s) may be causing the parameter(s) to be in the unex-
pected state. Troubleshoot these items.
3. If this fault is not currently active or if no parameters are currently in the unexpected state and the malfunc-
tion is still unresolved, then check each of the parameters in the Table for proper functionality. Troubleshoot all
item(s) related to the parameter(s) which are found to be malfunctioning.
Parameter Expected State and/or Related Fault(s)
Incline Sensor (PLM3
36, 29, 19)
Sensor voltage 5.08: failed lowSensor voltage >0.565 but < 5.08: valid readings
Fault(s): A010
INCLINOMETER
INCLINE SIGNAL
INCLINE GROUND
+18V
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Fault Code A010: Incline sensor signal low.
Related circui t diagram
Operator Action None
Fault Code A010
Description Incline sensor signal low.
Fault Conditions Sets if incline signal is out of range low (sensor voltage greater than 5.08 volts).Resets if reading returns to normal.
Operator Alerting
System Response
Repair Lamp
Display Operator Action: None
Display Fault Description: INCLINE SENSOR LOW
Display Fault Code: A010
Resulting Problem(s) Bad payload computation.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault is generated by PLM3 in response to a problem in the sensor circuit. This sensor circuit may havea related fault that can be used to resolve the problem. Refer to the Troubleshooting Instructions for the active
parameter fault(s).
2. If there are no active parameter fault codes, then based on the truck's setup while this fault is active, deter-
mine which of the parameters in the Table is not shown in its expected state on the IM Realtime Data Monitor
program. Refer to the schematic to identify which item(s) may be causing the parameter(s) to be in the unex-
pected state. Troubleshoot these items.
3. If this fault is not currently active or if no parameters are currently in the unexpected state and the malfunc-
tion is still unresolved, then check each of the parameters in the Table for proper functionality. Troubleshoot all
item(s) related to the parameter(s) which are found to be malfunctioning.
Parameter Expected State and/or Related Fault(s)
Incline Sensor (PLM3
36, 29, 19)
Sensor voltage 5.08: failed lowSensor voltage >0.565 but < 5.08: valid readings
Fault(s): A009
INCLINOMETER
INCLINE SIGNAL
INCLINE GROUND
+18V
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Fault Code A018: Right rear flat suspension cylinder warning
Operator Action None
Fault Code A018
Description Right rear flat suspension cylinder warning.
Fault Conditions Sets if PLM3 detects a flat right rear suspension cylinder.Resets if conditions clears.
Operator Alerting
System Response
Repair Lamp
Display Operator Action: None
Display Fault Description: RR FLAT SUSP CYL FLT
Display Fault Code: A018
Resulting Problem(s) Potential damage to suspension and frame.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. The logic that produces this fault is intended to identify flat suspension cylinders. The primary correction isto recharge / repair the cylinder. If the cylinder is not defective, use the following procedure to correct PLM3.
2. This fault's logic contains more than one parameter, each of which may have its own related fault code(s).
This fault may be resolved by resolving the parameter(s) active fault code(s). Refer to the Troubleshooting
Instructions for the active parameter fault(s).
3. If there are no active parameter fault codes, then based on the truck's setup while this fault is active, deter-
mine which of the parameters in the Table is not shown in its expected state on the IM Realtime Data Monitor
program. Refer to the schematic to identify which item(s) may be causing the parameter(s) to be in the unex-
pected state. Troubleshoot these items.
4. If this fault is not currently active or if no parameters are currently in the unexpected state and the malfunc-
tion is still unresolved, then check each of the parameters in the Table for proper functionality. Troubleshoot all
item(s) related to the parameter(s) which are found to be malfunctioning.
Parameter Expected State and/or Related Fault(s)Right Rear Pressure
Sensor (PLM3 36, 40)
Sensor current >22 ma: failed high
Sensor current 2 ma but less than 22 ma: valid readings
Fault(s): A007, A008
Left Rear Pressure
Sensor (PLM3 36, 30)
Sensor current >22 ma: failed high
Sensor current 2 ma but less than 22 ma: valid readings
Fault(s): A005, A006
Left Front Pressure
Sensor (PLM3 36, 39)
Sensor current >22 ma: failed high
Sensor current 2 ma but less than 22 ma: valid readings
Fault(s): A001, A002
Right Front Pressure
Sensor (PLM3 36, 20)
Sensor current >22 ma: failed high
Sensor current 2 ma but less than 22 ma: valid readings
Fault(s): A003, A004
Incline Sensor (PLM3
36, 29, 19)
Sensor voltage 5.08: failed low
Sensor voltage >0.565 but < 5.08: valid readings
Fault(s): A009, A010
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Related circui t diagram
LEFT FRONTSUSPENSIONPRESSURE
RIGHT FRONTSUSPENSIONPRESSURE
LEFT REAR
SUSPENSIONPRESSURE
RIGHT REARSUSPENSIONPRESSURE
INCLINOMETER
+18V
LF PRESSURE
RF PRESSURE
LR PRESSURERR PRESSURE
INCLINE SIGNAL
INCLINE GROUND
REAR AXLEJUNCTION BOX
RIGHT DECKJUNCTION BOX
LEFT DECKJUNCTION BOX
TB38-V was in old schematic, but not in
new schematic. Should it stay?
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Fault Code A019: Left rear flat suspension cy linder warning
Operator Action None
Fault Code A019
Description Left rear flat suspension cylinder warning.
Fault Conditions Sets if PLM3 detects a flat left rear suspension cylinder.Resets if conditions clears.
Operator Alerting
System Response
Repair Lamp
Display Operator Action: None
Display Fault Description: LR FLAT SUSP CYL FLT
Display Fault Code: A019
Resulting Problem(s) Potential damage to suspension and frame.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. The logic that produces this fault is intended to identify flat suspension cylinders. The primary correction is torecharge / repair the cylinder. If the cylinder is not defective, use the following procedure to correct PLM3.
2. This fault's logic contains more than one parameter, each of which may have its own related fault code(s).
This fault may be resolved by resolving the parameter(s) active fault code(s). Refer to the Troubleshooting
Instructions for the active parameter fault(s).
3. If there are no active parameter fault codes, then based on the truck's setup while this fault is active, deter-
mine which of the parameters in the Table is not shown in its expected state on the IM Realtime Data Monitor
program. Refer to the schematic to identify which item(s) may be causing the parameter(s) to be in the unex-
pected state. Troubleshoot these items.
4. If this fault is not currently active or if no parameters are currently in the unexpected state and the malfunc-
tion is still unresolved, then check each of the parameters in the Table for proper functionality. Troubleshoot all
item(s) related to the parameter(s) which are found to be malfunctioning.
Parameter Expected State and/or Related Fault(s)Left Rear Pressure
Sensor (PLM3 36, 30)
Sensor current >22 ma: failed high
Sensor current 2 ma but less than 22 ma: valid readings
Fault(s): A005, A006
Right Rear Pressure
Sensor (PLM3 36, 40)
Sensor current >22 ma: failed high
Sensor current 2 ma but less than 22 ma: valid readings
Fault(s): A007, A008
Left Front Pressure
Sensor (PLM3 36, 39)
Sensor current >22 ma: failed high
Sensor current 2 ma but less than 22 ma: valid readings
Fault(s): A001, A002
Right Front Pressure
Sensor (PLM3 36, 20)
Sensor current >22 ma: failed high
Sensor current 2 ma but less than 22 ma: valid readings
Fault(s): A003, A004
Incline Sensor (PLM3
36, 29, 19)
Sensor voltage 5.08: failed low
Sensor voltage >0.565 but < 5.08: valid readings
Fault(s): A009, A010
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Related circui t diagram
LEFT FRONTSUSPENSIONPRESSURE
RIGHT FRONTSUSPENSIONPRESSURE
LEFT REAR
SUSPENSIONPRESSURE
RIGHT REARSUSPENSIONPRESSURE
INCLINOMETER
+18V
LF PRESSURE
RF PRESSURE
LR PRESSURERR PRESSURE
INCLINE SIGNAL
INCLINE GROUND
REAR AXLEJUNCTION BOX
RIGHT DECKJUNCTION BOX
LEFT DECKJUNCTION BOX
TB38-V was in old schematic, but not innew schematic. Should it stay?
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Fault Code A022: Carryback load excessive
Operator Action None
Fault Code A022
Description Carryback load excessive.
Fault Conditions Sets if PLM3 detects excessive load remaining in the bed after dumping is complete.Resets if conditions clears.
Operator Alerting
System Response
Display Operator Action: None
Display Fault Description: None
Display Fault Code: None
Resulting Problem(s) Reduced production.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. The logic that produces this fault is intended to identify excessive carryback load. This is a VHMS recording
only. No display announces the fault. If excessive carryback does not exist, troubleshoot the payload system.2. This fault's logic contains more than one parameter, each of which may have its own related fault code(s).
This fault may be resolved by resolving the parameter(s) active fault code(s). Refer to the Troubleshooting
Instructions for the active parameter fault(s).
3. If there are no active parameter fault codes, then based on the truck's setup while this fault is active, deter-
mine which of the parameters in the Table is not shown in its expected state on the IM Realtime Data Monitor
program. Refer to the schematic to identify which item(s) may be causing the parameter(s) to be in the unex-
pected state. Troubleshoot these items.
4. If this fault is not currently active or if no parameters are currently in the unexpected state and the malfunc-
tion is still unresolved, then check each of the parameters in the Table for proper functionality. Troubleshoot all
item(s) related to the parameter(s) which are found to be malfunctioning.
Parameter Expected State and/or Related Fault(s)
Left Rear PressureSensor (PLM3 36, 30)
Sensor current >22 ma: failed highSensor current 2 ma but less than 22 ma: valid readings
Fault(s): A005, A006
Right Rear Pressure
Sensor (PLM3 36, 40)
Sensor current >22 ma: failed high
Sensor current 2 ma but less than 22 ma: valid readings
Fault(s): A007, A008
Left Front Pressure
Sensor (PLM3 36, 39)
Sensor current >22 ma: failed high
Sensor current 2 ma but less than 22 ma: valid readings
Fault(s): A001, A002
Right Front Pressure
Sensor (PLM3 36, 20)
Sensor current >22 ma: failed high
Sensor current 2 ma but less than 22 ma: valid readings
Fault(s): A003, A004
Incline Sensor (PLM3
36, 29, 19)
Sensor voltage 5.08: failed low
Sensor voltage >0.565 but
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Related circui t diagram
LEFT FRONTSUSPENSIONPRESSURE
RIGHT FRONTSUSPENSIONPRESSURE
LEFT REAR
SUSPENSIONPRESSURE
RIGHT REARSUSPENSIONPRESSURE
INCLINOMETER
+18V
LF PRESSURE
RF PRESSURE
LR PRESSURERR PRESSURE
INCLINE SIGNAL
INCLINE GROUND
REAR AXLEJUNCTION BOX
RIGHT DECKJUNCTION BOX
LEFT DECKJUNCTION BOX
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Fault Code A100: An open circuit breaker has been detected on a relay board
Related circui t diagram
Operator Action Stop: Park
Fault Code A100
Description An open circuit breaker has been detected on a relay board.
Fault Conditions Sets if any of the circuit breakers on relay boards are open for 1 second. These are alllighting and accessory electrical loads.
Operator Alerting
System Response
Sound Buzzer
Flash IM Warning indicator
Display Operator Action: STOP: PARK: PWR↓: CHKDisplay Fault Description: CIRCUIT BREAKER FLT
Display Fault Code: A100
Resulting Problem(s) Accessory circuits (headlights, tail lights, stop lights, turn signal lights, retard lights,
engine control, service lights, or horn) may be non-functional.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault is generated by parallel input to IM from the relay boards. Each relay board in turn has an LED that
indicates that one of its several breakers is open.
Parameter Expected State and/or Related Fault(s)
Circuit Breaker Tripped
(IM 2g)
0: one or more circuit breakers tripped on relay boards
1: no circuit breakers tripped on any relay boards
Relay Board 1 Turn Signal / Clearance Lights
Relay Board 3 Stop, Retard, Manual back up lights
Relay Board 4 Engine control, service lights & horn
Relay Board 5 Headlights
CIRCUIT BREAKER
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Fault Code A107: GE has generated a propel system caution
Related circui t diagram
Operator Action Max Speed Limited
Fault Code A107
Description GE has generated a propel system caution.
Fault Conditions Sets if the GE controller generates a propel system caution event.Operator Alerting
System Response
Sound Buzzer - single burst
Display Operator Action: MAX SPEED LIMITED
Display Fault Description: PROPEL SYS CAUTION
Display Fault Code: A107
Resulting Problem(s) Propel system may not permit the truck to remain at full performance. Shutdown of
propel system may occur if severity increases.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
A laptop running GE's PTU software may be required to resolve this fault.
Table1. This fault is generated by GE driving an input pin of IM to ground.
2. It may be necessary to use GE's PTU software to determine the actual cause of the propel system distress
Parameter Expected State and/or Related Fault(s)
Propel System
Caution (IM 2t)
0: GE has generated a propel system caution
1: no propel system caution exists
GE
CONTROLPANEL
PROPEL SYSTEM CAUTION
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Fault Codes A111 and A247: Low steering pressure warnings
Operator Action Stop: Park
Fault Code A111 & A247
Description A111 is a low steering pressure warning for storage by VHMS. It is designed to filter
out some service and operational conditions that would otherwise produce this warn-
ing.
A247 is a low steering pressure warning for display to operator. It is designed to give
immediate information to the operator, regardless of the cause of the problem.
Fault Conditions A111 sets if low steering pressure input to IM remains after 90 seconds of engine run-
ning at 300 rpm or above and is sustained for 3 seconds at speeds of 1200 rpm or
above.
A247 sets if low steering pressure input to IM is on with engine running at 300 rpm or
above or if truck begins to move at 0.8 kph or more.
A111 resets if pressure returns or engine slows below 1200 rpm for 3 seconds.
A247 resets if pressure returns or engine stops running and truck stops moving for 1
second.
Operator Alerting
System Response
Sound Buzzer
Flash IM Warning indicator Display Operator Action: STOP: RUN WHEN CLR'D
Display Fault Description: LOW STRG PRESSURE
Display Fault Code: A247
Resulting Problem(s) Truck may not steer properly.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault's logic contains more than one parameter, each of which may have its own related fault code(s).
This fault may be resolved by resolving the parameter(s) active fault code(s). Refer to the TroubleshootingInstructions for the active parameter fault(s).
2. If there are no active parameter fault codes, then based on the truck's setup while this fault is active, deter-
mine which of the parameters in the Table is not shown in its expected state on the IM Realtime Data Monitor
program. Refer to the schematic to identify which item(s) may be causing the parameter(s) to be in the unex-
pected state. Troubleshoot these items.
3. If this fault is not currently active or if no parameters are currently in the unexpected state and the malfunc-
tion is still unresolved, then check each of the parameters in the Table for proper functionality. Troubleshoot all
item(s) related to the parameter(s) which are found to be malfunctioning.
Parameter Expected State and/or Related Fault(s)
Low Steering Pressure
Sw (IM 2S)
0: steering pressure normal
1: low steering pressure
Fault(s): A279, A115, A253
Engine Speed [RPM] 0: engine is not running
Greater than 300: engine is running
Greater than 1200: engine is running fast enough to maintain steering pressure
Truck Speed [kph]
(IM1gh)
0: truck is not moving
Greater than 0.8kph: truck is moving
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Related circui t diagram
LOW STEERINGPRESSURE
GECONTROL
PANEL
LOW STEERINGPRESSURE
SWITCH2300 psi
TRUCK SPEED IN
TRUCK SPEED IN
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Fault Codes A117 and 261: Low brake accumulator pressure warnings
Operator Action Stop: Park
Fault Code A117 & A261
Description A117 is a low brake accumulator pressure warning for storage by VHMS. It is
designed to filter out some service and operational conditions that would otherwise
produce this warning.
A261 is a low brake accumulator pressure warning for display to operator. It is
designed to give immediate information to the operator, regardless of the cause of the
problem.
Fault Conditions A117 sets if low brake accumulator pressure input to IM remains after 90 seconds of
engine running at 300 rpm or above.
A261 sets if low brake accumulator pressure input to IM is on with engine running at
300 rpm or above or if truck begins to move at 0.8 kph or more.
A117 resets if pressure returns or engine stops running for 1 second.
A261 resets if pressure returns or engine stops running and truck stops moving for 1
second.
Operator Alerting
System Response
Sound Buzzer
Flash IM Warning indicator Display Operator Action: STOP: RUN WHEN CLR'D
Display Fault Description: LOW BRAKE PRESSURE
Display Fault Code: A261
Resulting Problem(s) Service brake may not stop or hold the truck.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault is generated by more than one parameter, but the independent parameters do not have fault codes
for situations that will affect this fault.Parameter Expected State and/or Related Fault(s)
Brake Accumulator
Pressure Sw (IM 2U)
0: brake accumulator pressure normal
1: low brake accumulator pressure
Engine Speed [RPM] 0: engine is not running
Greater than 300: engine is running
Truck Speed [kph]
(IM1gh)
0: truck is not moving
Greater than 0.8kph: truck is moving
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Related circui t diagram
LOW BRAKE ACCUMULATOR
PRESSURE
GECONTROL
PANEL
LBPSLOW BRAKE
ACCUMULATORPRESSURE SWITCH
1850 psi
TRUCK SPEED IN
TRUCK SPEED IN
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Fault Code A118: Brake pressure is low while in brake lock
Operator Action Set Park Brake
Fault Code A118
Description Brake pressure is low while in brake lock.
Fault Conditions Sets if brake lock is on and brake lock degrade switch closes indicating low servicebrake pressure for 3 seconds unless steering bleed has already started.
Resets if brake lock or brake lock degrade switch are off for 1 second.
Operator Alerting
System Response
Sound Buzzer
Flash IM Warning indicator
Display Operator Action: SET PARK BRAKE
Display Fault Description: SERV BRAKE DEGRADE
Display Fault Code: A118
Resulting Problem(s) Service brake may not stop or hold the truck.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault's logic contains more than one parameter, each of which may have its own related fault code(s).
This fault may be resolved by resolving the parameter(s) active fault code(s). Refer to the Troubleshooting
Instructions for the active parameter fault(s).
2. If there are no active parameter fault codes, then based on the truck's setup while this fault is active, deter-
mine which of the parameters in the Table is not shown in its expected state on the IM Realtime Data Monitor
program. Refer to the schematic to identify which item(s) may be causing the parameter(s) to be in the unex-
pected state. Troubleshoot these items.
3. If this fault is not currently active or if no parameters are currently in the unexpected state and the malfunc-
tion is still unresolved, then check each of the parameters in the Table for proper functionality. Troubleshoot all
item(s) related to the parameter(s) which are found to be malfunctioning.
Parameter Expected State and/or Related Fault(s)Brake Lock (IM 2i) 0: brake lock not on
1: brake lock is on
Fault(s): A272
Brake Lock Degrade
Sw (IM 2V)
0: brake lock degrade not on
1: brake lock degrade is on
Fault(s): A281
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Related circui t diagram
BDSBRAKE LOCK
DEGRADEPRESSURE
SWITCH1000 psi
BRAKE LOCKSOLENOID
BRAKE LOCK DEGRADE
BRAKE LOCK SOLENOID
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Fault Code A152: Starter Failure
Operator Action None
Fault Code A152
Description Starter Failure
Fault Conditions Sets if either starter motor is not energized for 2 seconds when cranking is attempted.Resets only when steering bleed occurs.
Operator Alerting
System Response
Display: Repair Item
Display Fault Description: STARTER FAILURE
Display Fault Code: A152
Resulting Problem(s) One good starter may be destroyed or engine may not start at all.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault's logic contains more than one parameter, each of which may have its own related fault code(s).
This fault may be resolved by resolving the parameter(s) active fault code(s). Refer to the TroubleshootingInstructions for the active parameter fault(s).
2. If there are no active parameter fault codes, then based on the truck's setup while this fault is active, deter-
mine which of the parameters in the Table is not shown in its expected state on the IM Realtime Data Monitor
program. Refer to the schematic to identify which item(s) may be causing the parameter(s) to be in the unex-
pected state. Troubleshoot these items.
3. If this fault is not currently active or if no parameters are currently in the unexpected state and the malfunc-
tion is still unresolved, then check each of the parameters in the Table for proper functionality. Troubleshoot all
item(s) related to the parameter(s) which are found to be malfunctioning.
Parameter Expected State and/or Related Fault(s)
Starter Motor 1
Energized (IM 3R)
0: starter motor 1 not energized
1: starter motor 1 energized
Fault(s): A275
Starter Motor 2
Energized (IM 3S)
0: starter motor 2 not energized
1: starter motor 2 energized
Fault(s): A275
Crank Sense (IM 3U) 0: no cranking in process
1: cranking in process
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Related circui t diagram
STARTER #1
STARTER #2
START MOTOR NO. 1
START MOTOR NO. 2
CRANK SENSE
STARTERFAILURECIRCUIT
STARTERFAILURECIRCUIT
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Fault Code A213: Parking brake should have applied but is detected as not having applied
Operator Action Secure Vehicle
Fault Code A213
Description Parking brake should have applied but is detected as not having applied.
Fault Conditions Sets if park brake does not apply within 3 seconds if the shifter is not in the forward,neutral, or reverse positions or the engine oil pressure is below the setpoint of the
engine oil pressure switch and either the speed of the truck has been 0.8kph or less
for 1 second or the service brakes are applied, or after the engine has been off for 15
seconds with the J1939 link working, or within 2 seconds after the key switch has been
turned off, the drive system control power is off, the engine is not running, and the
truck is not moving. Park brake set is defined as closure of the park brake set pressure
switch and opening of the park brake release pressure switch.
Resets after 3 seconds if the park brake applies, or if the park brake request is can-
celled and the shifter is not in the park position and the shifter is in the forward, neutral,
or reverse positions and the engine is running.
Operator Alerting
System Response
Sound Buzzer
Flash IM Warning indicator
Display Operator Action: SECURE VEHICLEDisplay Fault Description: NO PARK BRAKE
Display Fault Code: A213
Resulting Problem(s) The parking brake may be non-functional.
Engine cranking may be prevented.
Smart Timed Engine Shutdown may be prevented.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault's logic contains more than one parameter, each of which may have its own related fault code(s).This fault may be resolved by resolving the parameter(s) active fault code(s). Refer to the Troubleshooting
Instructions for the active parameter fault(s).
2. If there are no active parameter fault codes, then based on the truck's setup while this fault is active, deter-
mine which of the parameters in the Table is not shown in its expected state on the IM Realtime Data Monitor
program. Refer to the schematic to identify which item(s) may be causing the parameter(s) to be in the unex-
pected state. Troubleshoot these items.
3. If this fault is not currently active or if no parameters are currently in the unexpected state and the malfunc-
tion is still unresolved, then check each of the parameters in the Table for proper functionality. Troubleshoot all
item(s) related to the parameter(s) which are found to be malfunctioning.
Parameter Expected State and/or Related Fault(s)
Selector Switch (FNR)
(IM 2N)
0: shifter is not in forward, neutral, or reverse
1: shifter is in forward, neutral, or reverse
Fault(s): A271, A303
Park Brake Set (IM 2f) 0: parking brake pressure switch indicating low pressure and an applied parking brake
1: parking brake pressure switch indicating higher pressure and an unapplied parking
brake
Park Brake Released
(IM 2M)
0: parking brake pressure switch indicating high pressure and a released parking
brake
1: parking brake pressure switch indicating low pressure and an applied parking brake
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Selector Switch (Park)
(IM 3T)
0: shifter is not in park
1: shifter is in park
Fault(s): A271, A303
Park Brake Request
(IM 3V)
0: shifter is not in the forward, neutral, or reverse positions or the engine oil pressure is
below the setpoint of the engine oil pressure switch
1: shifter is in the forward, neutral, or reverse positions and the engine oil pressure isabove the setpoint of the engine oil pressure switch
Fault(s): A264
Engine Speed [RPM] 0: engine is not running
Greater than 0: engine is running
Truck Speed [kph]
(IM1gh)
0: truck is not moving
Greater than 0: truck is moving
Fault(s): A212
CAN J1939 connec-
tion (IM1qrs)
Fault(s): A184
Keyswitch (IM 3G) 0: keyswitch is off and the truck is not moving and the engine is not running
1: keyswitch is on or the truck is moving or the engine is running
Fault(s): A240
Park Brake Solenoid
(IM 1E)
Status - Open Load: Unexpected. Troubleshoot.
Status - Normal: Expected. No Problem.
Status - Shorted to Ground: Expected if shifter is in the forward, neutral, or reverse
positions and the engine oil pressure is above the setpoint of the engine oil pressure
switch. Otherwise unexpected and must troubleshoot.
Status - Overload: Unexpected. Troubleshoot.
0: shifter is not in the forward, neutral, or reverse positions or the engine oil pressure is
below the setpoint of the engine oil pressure switch and either the speed of the truck
has been 0.8kph or less for 1 second or the service brakes are applied.
1: shifter is in the forward, neutral, or reverse positions and the engine oil pressure is
above the setpoint of the engine oil pressure switch.
Fault(s): A216,
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Related circui t diagram
E N G I N E R U N
O I L P R E S S U R E S W I T C H
D I R S E L E C T
S W I T C H
S H O W N I N
F O R W A R D
P O S I T I O N )
P B S
P A R K B R A K E
S O L E N O I D
G E
C O N T R O L
P A N E L
P A R K B R A K E
O F F R E L A Y
P B R P S
P A R K B R A K E
R E L E A S E
P
R E S S . S W I T C H
1 2 5 0 p s i
P B A P
S
P A R K B R
A K E
A P P L
Y
P R E S S . S W I T C H
7 5 p s i
P A R K B R A K E
R E L E A S E D
T R U C K S P E E D I N
F O R W
A R D
R E V E R S E
P A R K B R A K E
N E U T R A L
P A R K B R A K E S E T
T R U C K S P E E D I N
K E Y S W I T C H
S E L E C T O R
S W I T C H P A R K
P A R K B R A K E
R E Q U E S T
P A R K B R A K E
S O L E N O I D
J 1 9 3 9 - H I G H
J 1 9 3 9 - L O W
J 1 9 3 9 - S H L D
S E L E C T O R
S W I T C H F N R
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Fault Code A214: Parking brake should have released but is detected as not havingreleased
Operator Action Stop: Park
Fault Code A214
Description Parking brake should have released but is detected as not having released.
Fault Conditions Sets if the engine has been running 90 seconds or more with the keyswitch on and the
park brake does not release in response to the selector switch being moved out of
park or in response to truck speeds over 0.8 kph for 3 seconds. Park brake release is
defined as the closure of the park brake release pressure switch and the opening of
the park brake set pressure switch.
Resets after 3 seconds if the park brake releases, or engine stops running, or key-
switch and propel control power are both turned off, or selector switch is moved to park
position.
Operator Alerting
System Response
Sound Buzzer - single burst
Park Brake Status Lamp stays on
Display Operator Action: STOP: PRK: PWR↓: CHKDisplay Fault Description: PARK BRAKE ON
Display Fault Code: A214
Resulting Problem(s) Operation of the truck may be prevented or the parking brake may be damaged.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault's logic contains more than one parameter, each of which may have its own related fault code(s).
This fault may be resolved by resolving the parameter(s) active fault code(s). Refer to the Troubleshooting
Instructions for the active parameter fault(s).
2. If there are no active parameter fault codes, then based on the truck's setup while this fault is active, deter-
mine which of the parameters in the Table is not shown in its expected state on the IM Realtime Data Monitorprogram. Refer to the schematic to identify which item(s) may be causing the parameter(s) to be in the unex-
pected state. Troubleshoot these items.
3. If this fault is not currently active or if no parameters are currently in the unexpected state and the malfunc-
tion is still unresolved, then check each of the parameters in the Table for proper functionality. Troubleshoot all
item(s) related to the parameter(s) which are found to be malfunctioning.
Parameter Expected State and/or Related Fault(s)
Selector Switch (Park)
(IM 3T)
0: shifter is not in park
1: shifter is in park
Fault(s): A271, A303
Park Brake Released
(IM 2M)
0: parking brake pressure switch indicating high pressure and a released parking
brake
1: parking brake pressure switch indicating lower pressure and an applied parkingbrake
Park Brake Set (IM 2f) 0: parking brake pressure switch indicating low pressure and an applied parking brake
1: parking brake pressure switch indicating higher pressure and a released parking
brake
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Park Brake Request
(IM 3V)
0: shifter is not in the forward, neutral, or reverse positions or the engine oil pressure is
below the setpoint of the engine oil pressure switch
1: shifter is in the forward, neutral, or reverse positions and the engine oil pressure is
above the setpoint of the engine oil pressure switch
Fault(s): A264
Engine Speed [RPM] Less than 300 RPM: engine is not runningGreater than 300 RPM for 4 seconds: engine is running
Truck Speed [kph]
(IM1gh)
Less than 0.8kph : park brake can be applied
Greater than 0.8kph: park brake cannot be applied
Fault(s): A212
CAN J1939 connec-
tion (IM1qrs)
Fault(s): A184
Keyswitch (IM 3G) 0: keyswitch is off and the truck is not moving and the engine is not running
1: keyswitch is on or the truck is moving (GE power not yet off)
Fault(s): A240
Park Brake Solenoid
(IM 1E)
Status - Open Load: Unexpected. Troubleshoot.
Status - Normal: Expected. No Problem.
Status - Shorted to Ground: Expected if shifter is in the forward, neutral, or reverse
positions and the engine oil pressure is above the setpoint of the engine oil pressure
switch. Otherwise unexpected and must troubleshoot.
Status - Overload: Unexpected. Troubleshoot.
0: shifter is not in the forward, neutral, or reverse positions or the engine oil pressure is
below the setpoint of the engine oil pressure switch and either the speed of the truck
has been 0.8kph or less for 1 second or the service brakes are applied
1: shifter is in the forward, neutral, or reverse positions and the engine oil pressure is
above the setpoint of the engine oil pressure switch
Fault(s): A216, A351
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Related circui t diagram
E N G I N E R U N
O I L P R E S S U R E S W I T C H
D I R S E L E C T
S W I T C H
S H O W
N I N
F O R W
A R D
P O S I T
I O N )
P B S
P A R K B R A K E
S O L E N O I D
G E
C O N T R O L
P A N E L
P A R K
B R A K E
O F F
R E L A Y
P B R P S
P A R K B R A K E
R E L E A S E
P R E S S . S W I T C H
1 2 5 0 p s i
P B A P S
P A R K B R A K E
A P P L Y
P R E S S . S W I T C H
7 5 p s i
P A R K B R A K E
R E L E A S E D
T R U C K S P E E D I N
F O R W A R D
R E V E R S E
P A R K B R A K E
N E U T R A L
P A R K B R A K E S E T
T R U C K S P E E D I N
K E Y S W I T C H
S E L E C T O R
S W I T C H P A R K
P A R K B R A K E
R E Q U E S T
P A R K B R A K E
S O L E N O I D
J 1 9 3 9 - H I G H
J 1 9 3 9 - L O W
J 1 9 3 9 - S H L D
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Fault Code A215: Brake auto apply valve circuit is defective
Operator Action Go To Shop
Fault Code A215
Description Brake auto apply valve circuit is defective.
Fault Conditions Sets if the output driver circuit detects an open circuit or short to ground when the key-switch is on and the park brake is requested, or sets if the output driver circuit does not
detect an open circuit with the key switch on and the park brake not requested.
Resets only at power down.
Operator Alerting
System Response
Sound Buzzer
Flash IM Warning Indicator
Display Operator Action: GO TO SHOP NOW
Display Fault Description: BRK AUTO APPLY FLT
Display Fault Code: A215
Resulting Problem(s) Park brake may not be protected in an application while rolling, or service brake may
not release and permit movement.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault's logic contains more than one parameter, each of which may have its own related fault code(s).
This fault may be resolved by resolving the parameter(s) active fault code(s). Refer to the Troubleshooting
Instructions for the active parameter fault(s).
2. If there are no active parameter fault codes, then based on the truck's setup while this fault is active, deter-
mine which of the parameters in the Table is not shown in its expected state on the IM Realtime Data Monitor
program. Refer to the schematic to identify which item(s) may be causing the parameter(s) to be in the unex-
pected state. Troubleshoot these items.
3. If this fault is not currently active or if no parameters are currently in the unexpected state and the malfunc-
tion is still unresolved, then check each of the parameters in the Table for proper functionality. Troubleshoot allitem(s) related to the parameter(s) which are found to be malfunctioning.
Parameter Expected State and/or Related Fault(s)
Park Brake Request
(IM 3V)
0: shifter is not in the forward, neutral, or reverse positions or the engine oil pressure is
below the setpoint of the engine oil pressure switch
1: shifter is in the forward, neutral, or reverse positions and the engine oil pressure is
above the setpoint of the engine oil pressure switch
Fault(s): A264, A317
Keyswitch (IM 3G) 0: keyswitch is off and the truck is not moving and the engine is not running
1: keyswitch is on or the truck is moving (GE power not yet off)
Fault(s): A240
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Related circui t diagram
Auto Brake Apply
Solenoid (IM 1R)
Status - Open Load: Unexpected if park brake request and keyswitch are on. But
expected if park brake request is off or keyswitch is off. Troubleshoot if inconsistent.
Status - Normal: Expected if park brake request and keyswitch are on. Troubleshoot if
status is normal with park brake request off or keyswitch off.
Status - Shorted to ground: Unexpected. Troubleshoot
Status - Overload: Unexpected. Troubleshoot.
0: normal operation with park brake either on or off. This valve operates only tran-
siently when the park brake is turned on.
1: brake auto apply valve operates for 1.5 seconds after the park brake is turned on if
the truck is stopped. If moving, it will not operate until truck speed has dropped to 0.8
kph.
Fault(s): A359
ABA AUTO BRAKE
APPLY SOLENOID
KEY SWITCH
PARK BRAKE REQUEST
BRAKE AUTO APPLY
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Fault Code A242: Fuel gauge within the Actia display panel is defective
Related circui t diagram
Operator Action None
Fault Code A242
Description Fuel gauge within the Actia display panel is defective.
Fault Conditions Sets if Actia reports a fuel gauge fault.Resets if Actia clears the fault.
Operator Alerting
System Response
Display Operator Action: None
Display Fault Description: FUEL GAUGE FAULT
Display Fault Code: A242
Resulting Problem(s) Truck could run out of fuel.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault is entirely contained within the ACTIA display panel. The panel and communication to it must be
working in order for IM to be aware of the fault. Therefore the only diagnostic effort is to check the gauge andwiring within the panel and replace if necessary.
Parameter Expected State and/or Related Fault(s)
POWER 7.5V
GND
LIN
Actia LIN connector, from MasterGauge to all other gauges and lightpanel by a daisy chain connection.
TO SLAVE DEVICES
MASTER GAUGE
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Fault Code A243: Engine coolant temp gauge within the Actia display panel is defective
Related circui t diagram
Operator Action Go to Shop
Fault Code A243
Description Engine coolant temp gauge within the Actia display panel is defective.
Fault Conditions Sets if Actia reports an engine coolant temp gauge fault.Resets if Actia clears the fault or steering bleed comes on.
Operator Alerting
System Response
Sound Buzzer
Flash IM Warning Indicator
Display Operator Action: GO TO SHOP NOW
Display Fault Description: ENG COOL TEMP GAUGE
Display Fault Code: A243
Resulting Problem(s) Engine could overheat without warning.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table1. Except for being masked by the steering bleed process, this fault is entirely contained within the ACTIA dis-
play panel. The panel and communication to it must be working in order for IM to be aware of the fault. There-
fore the only diagnostic effort is to check the gauge and wiring within the panel and replace if necessary.
Parameter Expected State and/or Related Fault(s)
Steering Bleed Valve 0: steering bleed valve is off
1: steering bleed valve is on
POWER 7.5VGND
LIN
Actia LIN connector, from MasterGauge to all other gauges and lightpanel by a daisy chain connection.
TO SLAVE DEVICES
MASTER GAUGE
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Fault Code A244: Drive system temp gauge with in the Actia display panel is defective
Related circui t diagram
Operator Action Go to Shop
Fault Code A244
Description Drive system temp gauge within the Actia display panel is defective.
Fault Conditions Sets if Actia reports a drive system temperature gauge fault.Resets if Actia clears the fault or steering bleed comes on.
Operator Alerting
System Response
Sound Buzzer
Flash IM Warning Indicator
Display Operator Action: GO TO SHOP NOW
Display Fault Description: DRIVE SYS TEMP GAUGE
Display Fault Code: A244
Resulting Problem(s) Drive system could overheat without warning.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table1. Except for being masked by the steering bleed process, this fault is entirely contained within the ACTIA dis-
play panel. The panel and communication to it must be working in order for IM to be aware of the fault. There-
fore the only diagnostic effort is to check the gauge and wiring within the panel and replace if necessary.
Parameter Expected State and/or Related Fault(s)
Steering Bleed Valve 0: steering bleed valve is off
1: steering bleed valve is on
POWER 7.5VGND
LIN
Actia LIN connector, from MasterGauge to all other gauges and lightpanel by a daisy chain connection.
TO SLAVE DEVICES
MASTER GAUGE
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Fault Code A245: Hydraulic o il temp gauge wi thin the Actia display panel is defective
Related circui t diagram
Operator Action Go to Shop
Fault Code A245
Description Hydraulic oil temp gauge within the Actia display panel is defective.
Fault Conditions Sets if Actia reports an hydraulic oil temperature gauge fault.Resets if Actia clears the fault or steering bleed comes on.
Operator Alerting
System Response
Sound Buzzer
Flash IM Warning Indicator
Display Operator Action: GO TO SHOP NOW
Display Fault Description: HYD OIL TEMP GAUGE
Display Fault Code: A245
Resulting Problem(s) Hydraulic oil could overheat without warning.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table1. Except for being masked by the steering bleed process, this fault is entirely contained within the ACTIA dis-
play panel. The panel and communication to it must be working in order for IM to be aware of the fault. There-
fore the only diagnostic effort is to check the gauge and wiring within the panel and replace if necessary.
Parameter Expected State and/or Related Fault(s)
Steering Bleed Valve 0: steering bleed valve is off
1: steering bleed valve is on
POWER 7.5VGND
LIN
Actia LIN connector, from MasterGauge to all other gauges and lightpanel by a daisy chain connection.
TO SLAVE DEVICES
MASTER GAUGE
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Fault Code A246: PLM3 reports truck overload
Related circui t diagram
None.
Operator Action Speed Limit
Fault Code A246
Description PLM3 reports truck overload.
Fault Conditions Sets if PLM3 reports an overloaded truck.Resets if PLM3 clears the overloaded truck report.
Operator Alerting
System Response
Sound Buzzer - single burst
Display Operator Action: MAX SPEED LIMIT
Display Fault Description: LOAD EXCEEDS LIMIT
Display Fault Code: A246
Resulting Problem(s) Truck could be damaged by operating in overload condition.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault is entirely contained within PLM3 (payload meter). The panel and communication to it must beworking in order for IM to be aware of the fault. Normal corrective measures would be to correct the loading
process.
2. Any faults within the payload meter system that might affect its accuracy are developed and reported by
PLM3.
Parameter Expected State and/or Related Fault(s)
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Fault Code A248: Status module with in the Actia display panel is defective
Related circui t diagram
Operator Action Go to Shop
Fault Code A248
Description Status module within the Actia display panel is defective.
Fault Conditions Sets if Actia reports a status module fault.Resets if Actia clears the fault or steering bleed comes on.
Operator Alerting
System Response
Sound Buzzer
Flash IM Warning Indicator
Display Operator Action: GO TO SHOP NOW
Display Fault Description: STATUS MODULE FLT
Display Fault Code: A248
Resulting Problem(s) Proper operation will be difficult without status information.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table1. Except for being masked by the steering bleed process, this fault is entirely contained within the ACTIA dis-
play panel. The panel and communication to it must be working in order for IM to be aware of the fault. There-
fore the only diagnostic effort is to check the status module and wiring within the panel and replace if
necessary.
Parameter Expected State and/or Related Fault(s)
Steering Bleed Valve 0: steering bleed valve is off
1: steering bleed valve is on
POWER 7.5V
GND
LIN
Actia LIN connector, from MasterGauge to all other gauges and lightpanel by a daisy chain connection.
POWER 7.5V
GND
LIN
LIGHT MODULEMASTER GAUGE
TO SLAVE DEVICES TO SLAVE DEVICES
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Fault Code A249: Red warning lamp within the ACTIA disp lay (driven by IM) is shorted
Related circui t diagram
Operator Action Go to Shop
Fault Code A249
Description Red warning lamp within the ACTIA display (driven by IM) is shorted.
Fault Conditions Sets if the red warning lamp feedback voltage is high for 400 ms with the red warninglamp on.
Resets at power down.
Operator Alerting
System Response
Sound Buzzer
Flash IM Warning Indicator
Display Operator Action: GO TO SHOP NOW
Display Fault Description: RED WARN LAMP FLT
Display Fault Code: A249
Resulting Problem(s) Warnings will be audible only.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault's logic contains no additional external parameters. The red warning lamp feedback connection is
made internally.
2. Check wiring and connections between IM and the ACTIA display and wiring within the display to the red
warning lamp as well as the lamp itself.
Parameter Expected State and/or Related Fault(s)
Red Warning Lamp (IM
1G)
0: red lamp is not on
1: red lamp is on
Fault(s): A256
Red Warning Lamp
Feedback (IM 1G)
Above 3.75 volts for 400 ms with the lamp on: shorted
Less than 3.75 volts for 400 ms with the lamp on: normal
ELECTRONIC DASH PANEL(PC1927) AND (PC1929)
RED WARNING LAMP
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Fault Code A251: Sonalert used with the ACTIA display but driven by IM, is open orshorted to ground
Operator Action Go to Shop
Fault Code A251
Description Sonalert used with the ACTIA display but driven by IM, is open or shorted to ground.
Fault Conditions Sets if the sonalert circuit is open or short to ground for 400 ms and steering bleed not
on.
Resets if circuit is normal for 400 ms or if steering bleed comes on.
Operator Alerting
System Response
Sound Buzzer
Flash IM Warning Indicator
Display Operator Action: GO TO SHOP NOW
Display Fault Description: SONALERT IM FAULT
Display Fault Code: A251
Resulting Problem(s) Warnings will be visual only.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault's logic contains more than one parameter, each of which may have its own related fault code(s).
This fault may be resolved by resolving the parameter(s) active fault code(s). Refer to the Troubleshooting
Instructions for the active parameter fault(s).
2. If there are no active parameter fault codes, then based on the truck's setup while this fault is active, deter-
mine which of the parameters in the Table is not shown in its expected state on the IM Realtime Data Monitor
program. Refer to the schematic to identify which item(s) may be causing the parameter(s) to be in the unex-
pected state. Troubleshoot these items.
3. If this fault is not currently active or if no parameters are currently in the unexpected state and the malfunc-
tion is still unresolved, then check each of the parameters in the Table for proper functionality. Troubleshoot all
item(s) related to the parameter(s) which are found to be malfunctioning.
Parameter Expected State and/or Related Fault(s)
Sonalert (IM 1M) Status - Open Load: Unexpected. Troubleshoot.
Status - Normal: Expected. No problem.
Status - Shorted to Ground: Unexpected. Troubleshoot.
Status - Overload: Unexpected. Troubleshoot.
0: No faults are active that require buzzer operation.
1. One or more faults are active that require buzzer action.
Fault(s): A356
Steering Bleed Valve 0: steering bleed valve is off
1: steering bleed valve is on
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Related circui t diagram
SONALERT
SONALERT #2(IM FAULTS)
+24V OUT
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Fault Code A252: Start enable output circuit is either open or shorted to ground
Operator Action None
Fault Code A252
Description Start enable output circuit is either open or shorted to ground.
Fault Conditions Sets if the start enable relay circuit is open or short to ground for 2 seconds.Resets only at power down.
Operator Alerting
System Response
Repair Status Light On
Display Operator Action: None
Display Fault Description: STRT ENABLE CKT FLT
Display Fault Code: A252
Resulting Problem(s) Starting will either not be possible, or will lack the protections that IM provides for the
start enable circuit (excessive cranking, selector switch position, J1939 ok, and engine
speed 0 to start and not above 400rpm at finish).
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault's logic contains more than one parameter, each of which may have its own related fault code(s).
This fault may be resolved by resolving the parameter(s) active fault code(s). Refer to the Troubleshooting
Instructions for the active parameter fault(s).
2. If there are no active parameter fault codes, then based on the truck's setup while this fault is active, deter-
mine which of the parameters in the Table is not shown in its expected state on the IM Realtime Data Monitor
program. Refer to the schematic to identify which item(s) may be causing the parameter(s) to be in the unex-
pected state. Troubleshoot these items.
3. If this fault is not currently active or if no parameters are currently in the unexpected state and the malfunc-
tion is still unresolved, then check each of the parameters in the Table for proper functionality. Troubleshoot all
item(s) related to the parameter(s) which are found to be malfunctioning.
Parameter Expected State and/or Related Fault(s)Start Enable (IM 1B) Status - Open Load: Unexpected. Troubleshoot
Status - Normal: Expected. No problem.
Status - Shorted to Ground: Unexpected. Troubleshoot.
Status - Overload: Unexpected. Troubleshoot.
0: One of several interlocking situations exist to prevent cranking (excessive cranking
history, selector switch in wrong position, engine red light, J1939 not ok, engine speed
either not 0 to begin cranking or over 400 rpm while cranking).
1. No interlocking situations exist to prevent cranking.
Fault(s): A350
Steering Bleed Valve 0: steering bleed valve is off
1: steering bleed valve is on
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Related circui t diagram
START CIRCUIT
RELAY
START ENABLE
+24V OUT
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Fault Code A253: Steering bleed circuit is not open while running
Operator Action None
Fault Code A253
Description Steering bleed circuit is not open while running,
Fault Conditions Sets if the steering bleed circuit is not open for 2 seconds, beginning 11 seconds afterthe keyswitch is turned on.
Resets only at power down.
Operator Alerting
System Response
Repair Status Light On
Display Operator Action: None
Display Fault Description: STG BLD CKT NOT OPN
Display Fault Code: A253
Resulting Problem(s) Steering bleed will be possible during normal running, if IM or some of its inputs should
also malfunction.
Related Information A laptop running "IM Realtime Data Monitor" software may be required to resolve this
fault.
Table
1. This fault's logic contains more than one parameter, each of which may have its own related fault code(s).
This fault may be resolved by resolving the parameter(s) active fault code(s). Refer to the Troubleshooting
Instructions for the active parameter fault(s).
2. If there are no active parameter fault codes, then based on the truck's setup while this fault is active, deter-
mine which of the parameters in the Table is not shown in its expected state on the IM Realtime Data Monitor
program. Refer to the schematic to identify which item(s) may be causing the parameter(s) to be in the unex-
pected state. Troubleshoot these items.
3. If this fault is not currently active or if no parameters are currently in the unexpected state and the malfunc-
tion is still unresolved, then check each of the parameters in the Table for proper functionality. Troubleshoot all
item(s) related to the parameter(s) which are found to be malfunctioning.
Parameter Expected State and/or Related Fault(s)Steering Bleed Valve
(IM 1P)
Status - Open Load: Expected with key switch on. No problem. Otherwise, unex-
pected. Must troubleshoot.
Status - Normal: Expected only with key off and steering bleed in process. Trouble
shoot if found with key on.
Status - Shorted to Ground: Unexpected. Troubleshoot.
Status - Overload: Unexpected.Troubleshoot.
0: steering bleed valve is off. This is expected in normal running operation.
1: steering bleed valve is on. This is expected after key off initiates steering bleed
operation.
Fault(s): A262, A263, A358
Keyswitch (IM 3G) 0: keyswitch is off and the truck is not moving and the engine is not running
1: keyswitch is on or the truck is moving or the engine is runningFault(s): A240
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Related circui t diagram
STEERING ACCUMULATOR
BLEEDDOWN SOLENOID
BLEEDDOWN POWERSUPPLY RELAY
KEY SWITCH
STEERINGBLEEDDOWNSOLENOID
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Fault Code A256: Red warning lamp in the ACTIA display but dr iven by IM, is open
Related circui t diagram
Operator Action Go to Shop
Fault Code A256
Description Red warning lamp in the ACTIA display but driven by IM, is open.
Fault Conditions Sets if red lamp stays open for 1 second with steering bleed off. (The red lamp is openif feedback voltage stays low for 400 ms with red lamp off.)
Resets if red lamp returns to normal or steering bleed operates for 1 sec. (The red
lamp is normal if feedback voltage goes high for 400 ms with red lamp off.)
Operator Alerting
System Response
Sound Buzzer
Flash IM Warning Indicator
Display Operator Action: GO TO SHOP NOW
Display Fault Description: RED WARN LAMP FLT
Display Fault Code: A256
Resulting Problem(s) Warnings will be audible only.
Related Information A laptop running "IM Realtime Data Monit