Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, read Radio DTCs and record on the repair order.
3. With the scan tool, erase DTCs.
4. Cycle the ignition switch from on to off, wait five seconds and then back to 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 CABLE CONNECTION AT THE RADIO, IN-LINE HARNESS CONNECTOR, AND AT THE REAR CAMERA
1. Turn the ignition off.
2. Inspect the Radio harness connector for a secure and undamaged connection.
3. Inspect the in-line harness connectors for a secure and undamaged connection.
4. Inspect the Rear Camera harness connector for a secure and undamaged connection.
  Are the connections secure and undamaged?
  
  Yes
  - Go To 3
  No
  - Repair the connection as needed and check video operation.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
TEST THE REAR CAMERA CIRCUITS
1. Turn the ignition off.
2. Disconnect the Radio harness connector.
3. Disconnect the Rear Camera harness connector.
4. Perform a voltage drop test of the Rear Camera circuits at the Rear Camera harness connector.
  Is the voltage drop less than.2 volts?
  
  Yes
  - Go To 4
  No
  - Replace the Rear Camera circuit(s) as needed.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK RELATED HARNESS CONNECTIONS
1. Disconnect all Radio harness connectors.
2. Disconnect all related in-line harness connections (if equipped).
3. Disconnect the related component harness connectors.
4. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
  - Proper connector installation.
  - Damaged connector locks.
  - Corrosion.
  - Other signs of water intrusion.
  - Weather seal damage (if equipped).
  - Bent terminals.
  - Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
  - Terminals that have been pushed back into the connector cavity.
  - Perform a terminal drag test on each connector terminal to verify proper terminal tension.
  Repair any conditions that are found.
5. Reconnect all Radio harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
6. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
7. Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
8. With the scan tool, erase DTCs.
9. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
10. With the scan tool, read Radio DTCs.
  Did the DTC return?
  
  Yes
  - Replace the Radio in accordance with the Service Information. Refer to RADIO, REMOVAL AND INSTALLATION .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  - Test complete.