Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. With the scan tool, read Body Control Module (BCM) DTCs and record on the repair order.
2. Record the Environmental Data.
3. With the scan tool, erase DTCs.
4. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
5. With the scan tool, read BCM DTCs.
  Did the DTC return?
  
  Yes
  - Go To 2
  No
  - Perform the TESTING FOR INTERMITTENT CONDITIONS procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
CHECK THE (F944) RUN/START RELAY OUTPUT CIRCUIT FOR VOLTAGE
1. Turn the ignition off.
2. Disconnect the Rear View Camera Module (RVCM) harness connector.
3. Turn the ignition on.
4. Measure the voltage between ground and the (F944) Run/Start Relay Output circuit at the RVCM harness connector.
  Is the voltage below 9.0 volts?
  
  Yes
  - Repair the open or short to ground in the (F944) Run/Start Relay Output circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
CHECK THE (Z930) GROUND CIRCUIT FOR AN OPEN
1. Turn the ignition off.
2. Measure the resistance between ground and the (Z930) Ground circuit at the RVCM harness connector.
  Is the resistance below 3.0 Ohms?
  
  Yes
  - Go To 4
  No
  - Repair the open in the (Z930) Ground circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (D402) LIN BUS 2 CIRCUIT FOR VOLTAGE
1. Disconnect the BCM C8/H harness connector.
2. Measure the resistance of the (D402) LIN Bus 2 circuit between the RVCM harness connector and PIN 44 in the BCM C8/H harness connector.
  Is the resistance above 3.0 Ohms?
  
  Yes
  - Repair the open in the (D402) LIN Bus 2 circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the Rear View Camera Module (RVCM) in accordance with the Service Information. Refer to CAMERA, REAR, REMOVAL AND INSTALLATION .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .