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 VOLTAGE
1. Turn the ignition off.
2. Disconnect the Driver Outside Rearview Mirror C1 and C2 (Component Side) harness connectors from the Door Module.
3. Turn the ignition on.
4. Measure the voltage between ground and the (P551) Driver Mirror Approach Lamp Driver circuit in the Driver Outside Rearview Mirror C1 (Component Side) harness connector.
  Is there any voltage present?
  
  Yes
  - Repair the (P551) Driver Mirror Approach Lamp Driver circuit for a short to voltage.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
CHECK THE (P551) DRIVER MIRROR APPROACH LAMP DRIVER CIRCUIT AND THE (P552) DRIVER MIRROR BLIND SPOT/APPROACH RETURN CIRCUIT FOR AN OPEN
1. Turn the ignition off.
2. Check for continuity between the (P551) Driver Mirror Approach Lamp Driver circuit and the (P552) Driver Blind Spot/Approach Return circuit at the Driver Outside Rearview Mirror C1 (Component Side) connector.
  Is there continuity between the (P551) Driver Mirror Approach Lamp Driver circuit and the (P552) Driver Blind Spot/Approach Return circuit?
  
  Yes
  - Go To 4
  No
  - Repair the (P551) Driver Mirror Approach Lamp Driver circuit or the (P552) Driver Blind Spot/Approach Return circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (P551) DRIVER MIRROR APPROACH LAMP DRIVER CIRCUIT FOR A SHORT TO ANOTHER MIRROR DRIVER OR SIGNAL CIRCUIT
1. Check for continuity between the (P551) Driver Mirror Approach Lamp Driver circuit and any designated Mirror Driver and Signal circuits at the Driver Outside Rearview Mirror C1 and C2 (Component Side) connectors.
  Is there continuity between the (P551) Driver Mirror Approach Lamp Driver circuit and any designated Mirror Driver and Signal circuit(s)?
  
  Yes
  - Repair the (P551) Driver Mirror Approach Lamp Driver circuit for a short to another designated Mirror Driver and Signal circuit(s).
  - 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 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 .