Driver Door Module (DDM, DMFL/R)

B1F04-11-MIRROR FOLD CONTROL-CIRCUIT SHORT TO GROUND

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





- When Monitored:
Continuously.

- Set Condition:
When the Door Module senses a short low on the Mirror Fold Driver circuit or the Mirror Unfold Driver circuit for more than 10 ms.





Diagnostic Test

1. TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, record and erase the Diagnostic Trouble Codes (DTCs).
3. Operate the Mirror Fold switch several times.
4. Cycle the ignition from on to off three times.
5. Turn the ignition on.
6. With the scan tool, read the active DTCs.

Does the scan tool display; B1F04-11-MIRROR FOLD CONTROL - CIRCUIT SHORT TO GROUND as active?

Yes

- Go To 2

No

- The conditions that caused this code to set are not present at this time. Repeat the test with the mirror adjusted in several different positions. If the DTC is now active, 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 (P694) DRIVER MIRROR FOLD DRIVER CIRCUIT AND (P691) DRIVER MIRROR UNFOLD DRIVER CIRCUIT FOR A SHORT TO GROUND




1. Turn the ignition off.
2. Disconnect the Driver Outside Rearview Mirror (Component Side) C2 connector from the DDM.
3. Measure the resistance between ground and the (P694) Driver Mirror Fold Driver circuit in the Driver Outside Rearview Mirror (Component Side) connector.
4. Measure the resistance between ground and the (P691) Driver Mirror Unfold Driver circuit in the Driver Outside Rearview Mirror (Component Side) connector.

Is the resistance below 10k Ohms for either measurement?

Yes

- Repair all circuits with a resistance below 10k Ohms for a short to ground. If the wiring harness and connector are okay, replace the Driver Outside Rearview Mirror. Service and Repair.
- Perform the BODY VERIFICATION TEST. Body Verification Test .

No

- Go To 3

3. CHECK (P694) DRIVER MIRROR FOLD DRIVER CIRCUIT AND (P691) DRIVER MIRROR UNFOLD DRIVER CIRCUIT FOR A SHORT TO (C160) DRIVER MIRROR HEATER RETURN CIRCUIT




1. Measure the resistance between the (P694) Driver Mirror Fold Driver circuit and the (C160) Driver Mirror Heater Return circuit at the Driver Outside Rearview Mirror (Component Side) C2 connector.
2. Measure the resistance between the (P691) Driver Mirror Unfold Driver circuit and the (C160) Driver Mirror Heater Return circuit at the Driver Outside Rearview Mirror (Component Side) C2 connector.

Is the resistance below 10k Ohms for either measurement?

Yes

- Repair the circuit(s) with a resistance below 10k Ohms for a short to the (C160) Driver Mirror Heater Return circuit. Check the If the wiring harness and connector are okay, replace the Driver Outside Rearview Mirror. Service and Repair.
- Perform the BODY VERIFICATION TEST. Body Verification Test .

No

- Go To 4

4. MODULE OR MIRROR
1. Disconnect the Driver Outside Rearview Mirror (Component Side) C1 connector from the Door Module.
2. Turn the ignition on.
3. With the scan tool, record and erase the Diagnostic Trouble Codes (DTCs).
4. Operate the Mirror Fold switch several times.
5. Operate the mirror switch in all directions.
6. Cycle the ignition from on to off three times.
7. Turn the ignition on.
8. With the scan tool, read the active DTCs.

NOTE: Check for a CHANGE in the DTCs.

Does the scan tool display; B1F04-15-MIRROR FOLD CONTROL - CIRCUIT SHORT TO BATTERY OR OPEN as active?

Yes

- Check and repair any damaged wiring in the C1 and C2 harnesses. If the wiring harness and connectors are okay, replace the Driver Outside Rearview Mirror. Service and Repair.
- Perform the BODY VERIFICATION TEST. Body Verification Test .

No

- Replace the Driver Door Module (DDM). Door Module - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test .