Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. Using a scan tool, record and erase Diagnostic Trouble Codes (DTCs).
3. Press and release the Mirror Select switch to select the Driver Outside Rearview Mirror.
4. Turn the driver turn signal on.
5. Open the driver door to turn the approach lights on. Leave the door open.
6. Fold and unfold the mirrors (if equipped).
7. Turn the rear defogger on (if equipped with heated mirrors).
8. Operate the Mirror Adjust switch in all directions several times while monitoring the scan tool for DTCs.
  NOTE:
  After adjusting the mirror in one direction wait at least two seconds before adjusting the mirror in the opposite direction, as this will allow time for an active fault to set if present.
9. With the scan tool, read DDM DTCs.
  Is the DTC active?
  
  Yes
  - Go To 2
  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 and repair as necessary. If no problems are found, test complete.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (P551) DRIVER MIRROR APPROACH LAMP DRIVER CIRCUIT FOR A SHORT TO GROUND
1. Turn the ignition off.
2. Disconnect the Driver Outside Rearview Mirror C1 and C2 (Component Side) harness connectors from the Door Module.
3. Check for continuity between ground and the (P551) Driver Approach Lamp Driver circuit at the Driver Outside Rearview Mirror C1 (Component Side) connector.
  Is there continuity between ground and the (P551) Driver Approach Lamp Driver circuit?
  
  Yes
  - Repair the (P551) Driver Approach Lamp Driver circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
CHECK THE (P551) DRIVER MIRROR APPROACH LAMP DRIVER CIRCUIT FOR A SHORT TO THE (P552) DRIVER MIRROR BLIND SPOT/APPROACH RETURN CIRCUIT
1. Check for continuity between the (P551) Driver Mirror Approach Lamp Driver circuit and the (P552) Driver Mirror Blind Spot/Approach Return circuit at the Driver Outside Rearview Mirror C1 (Component Side) harness connector.
  Is there continuity between the (P551) Driver Mirror Approach Lamp Driver circuit and the (P552) Driver Mirror Blind Spot/Approach Return circuit?
  
  Yes
  - Repair the (P551) Driver Mirror Approach Lamp Driver circuit for a short to the (P552) Driver Mirror Blind Spot/Approach Return circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 4
CHECK THE (P551) DRIVER MIRROR APPROACH LAMP DRIVER CIRCUIT FOR A SHORT TO ANY DRIVER MIRROR GROUND OR RETURN CIRCUIT
1. Check for continuity between the (P551) Driver Mirror Approach Lamp Driver circuit and each of the Driver Mirror circuits in the Driver Outside Rearview Mirror C2 (Component Side) connector.
  Is there continuity between the (P551) Driver Mirror Approach Lamp Driver circuit and each of the Driver Mirror Driver circuits?
  
  Yes
  - Repair all circuits with a resistance below 10K Ohms for a short to the (P551) Driver Approach Lamp Driver circuit. If the wiring harness and connector are okay,
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 5
REPLACE THE DRIVER OUTSIDE REARVIEW MIRROR AND RETEST FOR DTCS
1. Replace the Driver Outside Rearview Mirror in accordance with the Service Information. Refer to OUTSIDE REARVIEW MIRROR, REMOVAL .
2. Turn the ignition on.
3. Using a scan tool, record and erase Diagnostic Trouble Codes (DTCs).
4. Press and release the Mirror Select switch to select the Driver Outside Rearview Mirror.
5. Turn the driver turn signal on.
6. Open the driver door to turn the approach lights on. Leave the door open.
7. Fold and unfold the mirrors (if equipped).
8. Turn the rear defogger on (if equipped with heated mirrors).
9. Operate the Mirror Adjust switch in all directions several times while monitoring the scan tool for DTCs.
  NOTE:
  After adjusting the mirror in one direction wait at least two seconds before adjusting the mirror in the opposite direction, as this will allow time for an active fault to set if present.
10. With the scan tool, read DDM DTCs.
  Is the DTC active?
  
  Yes
  - Replace the Driver Door Module in accordance with the Service Information. Refer to MODULE, DOOR (DDM/PDM), REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Test complete.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .