B164A-12

B164A-12-DRIVER MIRROR SIGNAL LAMP CONTROL - CIRCUIT SHORT TO BATTERY





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

- When Monitored:
Continuously.

- Set Condition:
The Door Module senses a short high on the (P501) Driver Mirror Turn Signal Driver circuit for more than two seconds with the turn signal switched on.





1. TEST FOR INTERMITTENT CONDITION

NOTE: Check the turn signals to be sure they are flashing properly before proceeding.

1. Turn the ignition on.
2. With the scan tool, record and erase DTCs.
3. Turn the drivers side turn signal on.
4. Turn the approach lamps on, if equipped.
5. Turn the rear defogger on, if equipped with heated mirror.
6. Press and release the Mirror Select switch to select the Driver Outside Rearview Mirror.
7. 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.

8. With the scan tool, read the active DTCs.

Does the scan tool display: B164A-12-DRIVER MIRROR SIGNAL LAMP CONTROL - CIRCUIT SHORT TO BATTERY?

Yes

- Go To 2

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. For vehicle's equipped with folding outside rearview mirrors, repeat the above test with the mirror folded. If this DTC is now active, Go To 2. For others, 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.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. CHECK (P501) DRIVER MIRROR TURN SIGNAL DRIVER CIRCUIT FOR A SHORT TO ANY SIGNAL OR DRIVER CIRCUIT




1. Turn the ignition off.
2. Turn all accessories off.
3. Disconnect the Driver Outside Rearview Mirror C1 (Component Side) and C2 (Component Side) harness connectors from the Door Module.
4. Measure the resistance between the (P501) Driver Mirror Turn Signal Driver circuit (C2-9) and each Signal and Driver circuit in the Driver Outside Rearview Mirror C2 and C1 (Component Side) harness connectors.

Is the resistance below 10K Ohms for any measurement?

Yes

- Repair the (P501) Driver Mirror Turn Signal Driver circuit for a short to a Signal or Driver circuit. If the wiring harness and harness connectors are okay, replace the Driver Outside Rearview Mirror. Outside Rearview Mirror - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

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