CHAPTER 32

Page 798

SCANNER USES

RETRIEVE FAULT CODES FOR: POWERTRAIN CONTROL SYSTEMS TRANSMISSION CONTROL SYSTEMS SPEED CONTROL, AIR BAGS ELECTRICAL ACCESSORIES ANTI-LOCK BRAKES SUSPENSION SYSTEMS PERFORM FUNCTION TESTS

DESIGNS

HARD WIRED SCANNERS (FIRST ONES NOT UPDATABLE)

REMOVABLE MODULES (SOFTWARE)

MANUFACTURE SPECIFICGENERIC (Like OBDII)MULTIPLE CONNECTOR/ADAPTERS

SNAP-ON SCANNER

Page 800

SNAP-ON SOLUS

SNAP-ON MODIS

OTC SCANNER Monitor 4000 E

VETRONIX MASTERTECH

Scanner and Lab ScopeMulti-meterRecording CapabilityCan hook up to PrinterTechnician’s Shop Functions

VETRONIX TECH II

Scanner and Lab ScopeMulti-meterRecording CapabilityCan hook up to Printer

OTC VISION

OTC GENISYS

SCANNER BRANDS OTC 2, 4, 2000, 4000 4000E GENISYS GENERIC SNAP-ON GENERIC TIF GENERIC HICKCOCK NEW GENERATION STAR AND

FORD SUPERSTAR KENT MOORE , TECH GM DRB II AND III MOPAR NISSAN CONSULT

SCANNER USE

Make sure key is off when you hook up scanner to the car

Must Power up and Ground to vehicle Must Program to vehicle Must make sure correct software Make sure correct cables connectors Make connections to self test connector Make sure you are connected to correct

connector Perform tests in correct sequence

FORD SELF-TEST CONNECTOR Located under hood

on earlier cars New OBDII

connector located under dashboard

Some Ford products have a Malfunction Indicator Light (MIL)

Page 803

FORD SELF-TEST CONNECTOR

GM ASSEMBLY LINE DATA LINK (ALDL)

Located under dash 4, 5, 12 terminal connector Each terminal for different function

Pg 787

LATE MODEL GM ALDL

E - Serial Data slow F - TCC G - Fuel Pump H - ABS J - Optional K - Air Bag M Serial Data fast

PAGE 791

•A - Ground •B - Diagnostic Req.•C - Air Injection•D - MIL Light

LATE MODEL GM ALDL

CHRYSLER ALDL

Located Under Hood Usually near a strut

tower or along fender well

Page 805

CHRYSLER ALDL

OBD IIData Link Connector (DLC)

Mounted in standard location

16 pin with 9 pins defined by SAE

Cannot jump across any pins to display codes on MIL

Any Scanner should access Data Stream

OBD IIData Link Connector (DLC)

16 pin with 9 pins defined by SAE

But the car companies can’t agree on everything so we have to insert different keys to read the data.

NISSAN FLASH CODE TESTING

Has no digital code readout Must put PCM into self-diagnostic mode and

read flash of led.

Page 806

SCANNER FEATURES

Some scanners have built in printerSome scanners have graph or lab

scope capabilitiesMost scanners have “freeze” modeSome scanners have diagnostic

information available such as common problems, technical service bulletins ref.

Engine Analyzers have scanners also

CODES Single Digit Double Digit Triple Digit OBDII KOEO KOER Continuous

Page 798, 804, 806

Other Scan optionsLab topsPalm PilotsCode Readers