Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. With the scan tool, read Radio DTCs and record on the repair order.
2. With the scan tool, erase DTCs.
3. Turn the ignition on.
4. Turn the Radio on.
5. With the scan tool, read Radio DTCs.
  Did the DTC return?
  
  Yes
  - Go To 2
  No
  - Perform the TESTING FOR AN INTERMITTENT CONDITION procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
CHECK THE (X970), (X971) AND (X972) RADIO CIRCUITS FOR A SHORT TO VOLTAGE IN THE HARNESS
1. Turn the ignition off.
2. Disconnect the Radio C1 harness connectors.
3. Disconnect the Rear Camera harness connector.
4. Turn the ignition on.
5. Check for voltage present on the (X970), (X971) and (X972) Camera circuits at the Radio C1 harness connector.
  Is there any voltage present?
  
  Yes
  - Repair the Rear Camera circuit with the short to voltage.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
CHECK THE (X970), (X971) AND (X972) CAMERA CIRCUITS FOR A SHORT TO GROUND IN THE HARNESS
1. Check for continuity between ground and the (X970), (X971) and (X972) Rear Camera circuits at the Radio harness C1 connector.
  Is there continuity between ground and the (X970), (X971) and (X972) Rear Camera circuits?
  
  Yes
  - Repair the Rear Camera circuit with the short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 4
CHECK THE (X970), (X971) AND (X972) REAR CAMERA CIRCUITS FOR A SHORT TOGETHER
1. Check for continuity between the (X970), (X971) and (X972) Rear Camera circuits at the Radio C1 harness connector.
  Is there continuity between the (X970), (X971) and (X972) Rear Camera circuits?
  
  Yes
  - Repair the Rear Camera circuits that are shorted together.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 5
CHECK THE (X970), (X971) AND (X972) REAR CAMERA CIRCUITS FOR AN OPEN IN THE HARNESS
1. Turn the ignition off.
2. Measure the resistance of the (X970), (X971) and (X972) Rear Camera circuits between the Rear Camera harness connector and the Radio C1 harness connector.
  Is the resistance below 3.0 Ohms?
  
  Yes
  - Go To 6
  No
  - Repair the Rear Camera circuit with the open.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
REPLACE THE REAR CAMERA
1. Replace the Rear Camera in accordance with the service information.
2. With the scan tool, erase DTCs.
3. Turn the ignition on.
4. Turn the Radio on.
5. With the scan tool, read DTCs.
  Did the DTC return?
  
  Yes
  - Replace the Radio in accordance with the Service information. Refer to MODULE, RADIO RECEIVER, REMOVAL AND INSTALLATION .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - The condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension If no problems are found, test complete.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .