scan tools and diagnostic procedures
DESCRIPTION
Chapter 44. Scan Tools and Diagnostic Procedures. FIGURE 44.1 A TECH 2 scan tool is the factory scan tool used on General Motors vehicles. - PowerPoint PPT PresentationTRANSCRIPT
Scan ToolsScan Toolsand Diagnosticand Diagnostic
ProceduresProcedures
Chapter 44
chapter 44 Scan Tools and Diagnostic Procedures
FIGURE 44.1 FIGURE 44.1 A TECH 2 scan tool is the factory scan tool used on General Motors vehiclesA TECH 2 scan tool is the factory scan tool used on General Motors vehicles
chapter 44 Scan Tools and Diagnostic Procedures
FIGURE 44.2 FIGURE 44.2 An OTC Genisys being used to troubleshoot a vehicle. This scan tool can be An OTC Genisys being used to troubleshoot a vehicle. This scan tool can be used on most makes and models of vehicles and is capable of diagnosing other used on most makes and models of vehicles and is capable of diagnosing other computer systems in the vehicles such as the antilock braking system (ABS) and airbag computer systems in the vehicles such as the antilock braking system (ABS) and airbag systems.systems.
chapter 44 Scan Tools and Diagnostic Procedures
FIGURE 44.3 FIGURE 44.3 A typical malfunction indicator lamp (MIL) often labeled “check engine” or A typical malfunction indicator lamp (MIL) often labeled “check engine” or “service engine soon” (SES).“service engine soon” (SES).
chapter 44 Scan Tools and Diagnostic Procedures
FIGURE 44.4 FIGURE 44.4 Connecting a scan tool to the data link connector (DLC) located under the Connecting a scan tool to the data link connector (DLC) located under the dash on this vehicle.dash on this vehicle.
chapter 44 Scan Tools and Diagnostic Procedures
FIGURE 44.5 FIGURE 44.5 This is what was found when removing an air filter from a vehicle that had a This is what was found when removing an air filter from a vehicle that had a lack-of-power concern.Obviously, the nuts were deposited by squirrels or some other lack-of-power concern.Obviously, the nuts were deposited by squirrels or some other animal, blocking a lot of the airflow into the engine.animal, blocking a lot of the airflow into the engine.
chapter 44 Scan Tools and Diagnostic Procedures
FIGURE 44.6 FIGURE 44.6 OBD-II DTC identification format.OBD-II DTC identification format.
chapter 44 Scan Tools and Diagnostic Procedures
FIGURE 44.7 FIGURE 44.7 After checking for stored diagnostic trouble codes (DTCs), the wise After checking for stored diagnostic trouble codes (DTCs), the wise technician checks service information for any technical service bulletins that may technician checks service information for any technical service bulletins that may relate to the vehicle being serviced.relate to the vehicle being serviced.