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3. CHECK IF ECM OR PCM DTCs ARE PRESENT With the scan tool, read ECM or PCM DTCs. Are any DTCs present? Yes >> Diagnose and repair the DTC(s). Refer to 9 - ENGINE - DIAGNOSIS AND TESTING. Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE). No >> Go To 4 4. CHECK FOR ADDITIONAL COMMUNICATION RELATED DTCs With the scan tool, select Network View and select Advanced. Is there more than one module with active DTCs “Logged Against” the ECM or PCM? Yes >> Replace/update the ECM or PCM in accordance with the service information. Perform POWERTRAIN VERIFICATION TEST. Refer to 9 - ENGINE - DIAGNOSIS AND TESTING. Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE). No >> Using the schematics as a guide, check the Anti-Lock Brakes Module pins, terminals, and connectors for corrosion, damage, and terminal push out. Pay particular attention to all Communication circuits. If Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE). 5 - 144 BRAKES - ABS ELECTRICAL DIAGNOSTICS KJ |