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Possible Causes (Z902) (Z909) GROUND CIRCUITS OPEN (F202) IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN OR SHORTED (D65) CAN C BUS (+) CIRCUIT OPEN (D64) CAN C BUS (-) CIRCUIT OPEN ANTILOCK BRAKE MODULE Diagnostic Test 1. TEST FOR INTERMITTENT CONDITION Turn the ignition on. NOTE: Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. NOTE: A red X will be next to the module that is not communicating, indicating that the module is not active NOTE: Check the TIPM for any active CAN C hardware DTCs, perform DTC before proceeding. Does the scan tool display a red X next to the module? Yes >> Go To 2 No >> The no response condition is not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness con- 2. (Z902) (Z909) GROUND CIRCUITS OPEN Using a 12-volt test light connected to 12-volts, check each (Z902) and Does the test light illuminate brightly for each circuit? Yes >> Go To 3 No >> Repair the (Z902) or (Z909) ground circuit for an open. Perform ABS VERIFICATION TEST - VER 1. PM ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS 8E - 119 |