For a complete wiring diagram Refer to Section 8W.Possible Causes(A209) FUSED B(+) CIRCUITS OPEN OR SHORTED(Z903) GROUND CIRCUITS OPEN(F202) FUSED RUN/START RELAY OUTPUT CIRCUIT OPEN OR SHORTED(F1) FUSED IGNITION SWITCH OUTPUT (UNLOCK/RUN/START) CIRCUIT OPEN OR SHORTED(F342) FUSED ASD RELAY OUTPUT CIRCUIT OPEN OR SHORTED(D65) CAN C BUS (+) CIRCUIT OPEN(D64) CAN C BUS (-) CIRCUIT OPENPOWERTRAIN CONTROL MODULE1. TEST FOR INTERMITTENT CONDITIONTurn the ignition on.Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.With the scan tool, select ECU View.A red X will be next to the module that is not communicating, indicating that the module is not active on the Bus network. A green check indicates that the module is active on the Bus network.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?YesGo To 2 NoThe 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 connectors for broken, bent, pushed out, and corroded terminals.2. (A209) FUSED B(+) CIRCUITS OPEN OR SHORTED

Turn the ignition off.Disconnect the PCM C1 harness connector.Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install Miller Special Tool #8815 to perform diagnosis.Using a 12-volt test light connected to ground, check the (A209) Fused B(+) circuit.Does the test light illuminate brightly?YesGo To 3NoRepair the (A209) Fused B(+) circuit for an open or short.Perform the (NGC) POWERTRAIN VERIFICATION TEST VER - 5.3. (Z903) GROUND CIRCUITS OPEN

Using a 12-volt test light connected to 12-volts, check each (Z903) ground circuits.Does the test light illuminate brightly for each circuit?YesGo To 4NoRepair the ground circuit for an open.Perform the (NGC) POWERTRAIN VERIFICATION TEST VER - 5.4. (F202) FUSED RUN/START RELAY OUTPUT CIRCUIT OPEN OR SHORTED

Turn the ignition on.Using a 12-volt test light connected to ground, check the (F202) Fused Run/Start Relay Output circuit.Does the test light illuminate brightly?YesGo To 5NoRepair the (F202) Fused Run/Start Relay Output circuit for an open or short.Perform the (NGC) POWERTRAIN VERIFICATION TEST VER - 5.5. (F1) FUSED IGNITION SWITCH OUTPUT (UNLOCK/RUN/START) CIRCUIT OPEN OR SHORTED

Turn the ignition on.Using a 12-volt test light connected to ground, check the (F1) Fused Ignition Switch Output (Unlock/Run/Start) circuit.Does the test light illuminate brightly?YesGo To 6NoRepair the (F1) Fused Ignition Switch Output (Unlock/Run/Start) circuit for an open or short.Perform the (NGC) POWERTRAIN VERIFICATION TEST VER - 5.6. (F342) FUSED ASD RELAY OUTPUT CIRCUIT OPEN OR SHORTED

Turn the ignition on.Using a 12-volt test light connected to ground, check the (F342) Fused ASD Relay Output circuit.Does the test light illuminate brightly?YesGo To 7NoRepair the (F342) Fused ASD Relay Output circuit for an open or short.Perform the (NGC) POWERTRAIN VERIFICATION TEST VER - 5.7. (D65) CAN C BUS (+) CIRCUIT OPEN

Turn the ignition off.Disconnect the TIPM C1 harness connector.Measure the resistance of the (D65) CAN C Bus (+) circuit between the TIPM connector and the appropriate terminal of the special tool #8815.Is the resistance below 5.0 ohms?YesGo To 8NoRepair the (D65) CAN C Bus (+) circuit for an open.Perform the (NGC) POWERTRAIN VERIFICATION TEST VER - 5.8. (D64) CAN C BUS (-) CIRCUIT OPEN

Measure the resistance of the (D64) CAN C Bus (-) circuit between the TIPM connector and the appropriate terminal of the special tool #8815.Is the resistance below 5.0 ohms?YesReplace and program the Powertrain Control Module in accordance with the service information.Perform the (NGC) POWERTRAIN VERIFICATION TEST VER - 5.NoRepair the (D64) CAN C Bus (-) circuit for an open.Perform the (NGC) POWERTRAIN VERIFICATION TEST VER - 5.