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Possible Causes (Z944) GROUND CIRCUIT OPEN (F100) FUSED IGNITION SWITCH OUTPUT (RUN) CIRCUIT OPEN OR SHORTED (F200) FUSED IGNITION SWITCH OUTPUT (RUN/START) CIRCUIT OPEN OR SHORTED (D55) AND (D54) CAN B BUS CIRCUITS OPEN OCCUPANT RESTRAINT CONTROLLER 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 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. (Z944) GROUND CIRCUIT OPEN WARNING: To avoid personal injury or death, turn the ignition off, Connect the appropriate Load Tool ACM Adaptor to the ORC connec- Using a 12-volt test light connected to 12-volts, check the (Z944) Does the test light illuminate brightly? Yes >> Go To 3 No >> Repair the (Z944) ground circuit for an open. Perform the AIRBAG VERIFICATION TEST - VER 1. PM ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS 8E - 147 |