Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. With the scan tool, read Forward Facing Camera Module (FFCM) DTCs and record on the repair order.
2. With the scan tool, erase FFCM DTCs.
3. Turn the ignition off for 10 seconds, then start the engine.
4. Using the recorded information along with the When Monitored and Set Conditions, operate the vehicle within the conditions that set the DTC.
5. With the scan tool, read FFCM DTCs.
  Did the DTC return?
  
  Yes
  - Go To 2
  No
  - Perform the TESTING FOR AN INTERMITTENT CONDITION. Refer to STANDARD PROCEDURE .
CHECK THE (C905) FORWARD FACING CAMERA WINDSHIELD DEFROSTER DRIVER CIRCUIT FOR A SHORT TO GROUND
1. Turn the ignition off.
2. Disconnect the Windshield Camera Heater harness connector.
3. Disconnect the FFCM harness connector.
4. Check the continuity between ground and the (C905) Forward Facing Camera Windshield Defroster Driver circuit.
  Is there continuity between ground and the (C905) Forward Facing Camera Windshield Defroster Driver circuit?
  
  Yes
  - Repair the (C905) Forward Facing Camera Windshield Defroster Driver circuit for a short to ground.
  - Perform the FORWARD FACING CAMERA VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 3
CHECK THE (C905) FORWARD FACING CAMERA WINDSHIELD DEFROSTER DRIVER CIRCUIT FOR A SHORT TO THE (C906) FORWARD FACING CAMERA WINDSHIELD DEFROSTER GROUND CIRCUIT
1. Check the continuity between (C905) Forward Facing Camera Windshield Defroster Driver circuit and the (C906) Forward Facing Camera Windshield Defroster Ground circuit.
  Is there continuity between (C905) Forward Facing Camera Windshield Defroster Driver circuit and the (C906) Forward Facing Camera Windshield Defroster Ground circuit?
  
  Yes
  - Repair the short between the (C905) Forward Facing Camera Windshield Defroster Driver circuit and the (C906) Forward Facing Camera Windshield Defroster Ground circuit.
  - Perform the FORWARD FACING CAMERA VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 4
CHECK THE WINDSHIELD CAMERA HEATER
1. Measure the resistance between the terminals of the Windshield Camera Heater.
  Is the resistance below 4.0 ohms?
  
  Yes
  - Replace the Windshield Camera Heater in accordance with the Service Information.
  - Perform the FORWARD FACING CAMERA VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 5
CHECK RELATED WIRING AND HARNESS CONNECTIONS
1. Disconnect all FFCM 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 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 information along with the When Monitored and Set Conditions, operate the vehicle within the conditions that set the DTC.
10. With the scan tool, read FFCM DTCs.
  Did the DTC return?
  
  Yes
  - Replace the FFCM in accordance with the Service Information.
  - Perform the FORWARD FACING CAMERA VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Perform the FORWARD FACING CAMERA VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  - Test complete.