Passenger Door Module (PDM, DMFL/R)

B2861-11-MIRROR APPROACH LIGHT CONTROL-CIRCUIT SHORT TO GROUND

For a complete wiring diagram, refer to the Wiring Information.





- When Monitored:
Continuously.

- Set Condition:
The Door Module senses a short low on the Approach Lamp Driver circuit for more than two seconds with the approach lights switched on.





Diagnostic Test

1. TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. Using a scan tool, record and erase Diagnostic Trouble Codes (DTCs).
3. Cycle the ignition off then on.
4. Press and release the Mirror Select switch to select the Passenger Outside Rearview Mirror.
5. Open the passenger door to turn the approach lights on.
6. Turn the passenger side turn signal on.
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 the DTCs.

Does the scan tool display: B2861-11-MIRROR APPROACH LAMP CONTROL - CIRCUIT SHORT TO GROUND?

Yes

- Go To 2

No

- The conditions that caused this code to set are not present at this time. Repeat this test again. If this DTC is now present, Go To 2. Otherwise, use the wiring diagram/schematic as a guide and inspect the wiring and connectors.
- Perform the BODY VERIFICATION TEST. Body Verification Test .

2. CHECK (P553) PASSENGER MIRROR APPROACH LAMP DRIVER CIRCUIT FOR A SHORT TO GROUND




1. Turn the ignition off.
2. Disconnect the Passenger Outside Rearview Mirror C1 and C2 (Component Side) harness connectors from the Door Module.
3. Measure the resistance between ground and the (P553) Passenger Approach Lamp Driver circuit at the Passenger Outside Rearview Mirror C1 (Component Side) connector.

Is the resistance below 10k Ohms?

Yes

- Repair the (P553) Passenger Approach Lamp Driver circuit for a short to ground. If the wiring harness and connector are okay, replace the Passenger Outside Rearview Mirror. Service and Repair.
- Perform the BODY VERIFICATION TEST. Body Verification Test .

No

- Go To 3

3. CHECK (P553) PASSENGER MIRROR APPROACH LAMP DRIVER CIRCUIT FOR A SHORT TO THE (P554) PASSENGER APPROACH LAMP RETURN CIRCUIT




1. Measure the resistance between the (P553) Passenger Approach Lamp Driver circuit and the (P554) Passenger Blind Spot/Approach Return circuit at the Passenger Outside Rearview Mirror C1 (Component Side) harness connector.

Is the resistance below 2.0 Ohm?

Yes

- Repair the (P553) Passenger Approach Lamp Driver circuit for a short to the (P554) Passenger Approach Lamp Return circuit. If the wiring harness and connector are okay, replace the Passenger Outside Rearview Mirror. Service and Repair.
- Perform the BODY VERIFICATION TEST. Body Verification Test .

No

- Go To 4

4. CHECK (P553) PASSENGER MIRROR APPROACH LAMP DRIVER CIRCUIT FOR A SHORT TO ANY PASSENGER MIRROR GROUND OR RETURN CIRCUIT




1. Measure the resistance between the (P553) Passenger Approach Lamp Driver circuit (C1-1) and each of the Passenger Mirror Ground and Return circuits in the Passenger Outside Rearview Mirror C1 and C2 (Component Side) connectors.

Is the resistance below 10k Ohms for any measurement?

Yes

- Repair all circuits with a resistance below 10k Ohms for a short to the (P553) Passenger Approach Lamp Driver circuit. If the wiring harness and connector are okay, replace the Passenger Outside Rearview Mirror. Outside Rearview Mirror - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test .

No

- Inspect the wiring and connectors for damage and repair as necessary. If the wiring and connectors are okay, replace the Door Module. Door Module - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test .