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B1D2E






B1D2E-11-PASSENGER MIRROR HORIZONTAL MOTOR CONTROL - CIRCUIT SHORT TO GROUND





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

Theory of Operation

The Mirror Horizontal Driver circuit supplies battery voltage for the mirror left position and ground for the mirror right position. The Mirror Common Driver supplies battery voltage for the mirror right position and ground for the mirror left position.

- When Monitored:
Continuously.

- Set Condition:
The Door Module senses a short low on the (P74) Passenger Mirror Horizontal Driver circuit for more than two seconds.





1. TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. Using a scan tool, record and erase Diagnostic Trouble Codes (DTCs).
3. Turn the turn signal on, if equipped with turn signal mirror.
4. Turn the puddle lamps on, if equipped with puddle lamp mirror.
5. Turn the rear defogger on, if equipped with heated mirror.
6. Press and release the Mirror Select switch to select the Passenger 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.

Does the scan tool display: B1D2E-11-PASSENGER MIRROR HORIZONTAL MOTOR 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. For vehicle's equipped with folding outside rearview mirrors, repeat test with mirror folded. If DTC is now active, Go To 2. Otherwise, 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 poor pin fit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. CHECK (P72) PASSENGER MIRROR VERTICAL DRIVER CIRCUIT FOR A SHORT TO GROUND IN THE DOOR MODULE

NOTE: Here we are checking the Door Module for an internal short.

1. Disconnect the Passenger Outside Rearview Mirror C1 and C2 harness connectors.
2. Using a scan tool, record and erase the Diagnostic Trouble Codes (DTCs).
3. Press and release the Mirror Select switch to select the Driver Outside Rearview Mirror.
4. 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.

NOTE: The scan tool will display several High or Open DTCs when the connectors are disconnected.

Does the scan tool display: B1D2E-11-PASSENGER MIRROR HORIZONTAL MOTOR CONTROL - CIRCUIT SHORT TO GROUND as active?

Yes

- Replace the Passenger Door Module. Door Module - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 3

3. CHECK (P74) PASSENGER MIRROR HORIZONTAL DRIVER CIRCUIT FOR A SHORT TO GROUND




1. Turn the ignition off.
2. Measure the resistance between ground and the (P74) Passenger Mirror Horizontal Driver circuit at the Passenger Outside Rearview Mirror C2 (Component Side) connector.

Is the resistance below 10K Ohms?

Yes

- Repair the (P74) Passenger Mirror Horizontal Driver circuit for a short to ground. 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

- Go To 4

4. CHECK (P74) PASSENGER MIRROR HORIZONTAL DRIVER CIRCUIT FOR A SHORT TO ANOTHER PASSENGER MIRROR DRIVER CIRCUIT




1. Measure the resistance between the (P74) Passenger Mirror Horizontal Driver circuit (C2-8) and the other Passenger Mirror Driver circuits in the Passenger Outside Rearview Mirror C2 (Component Side) connector.

Is the resistance below 10.0 Ohms for either measurement?

Yes

- Repair all circuits with a resistance below 10.0 Ohms for a short to the (P74) Passenger Mirror Horizontal 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

- Go To 5

5. CHECK (P74) PASSENGER MIRROR HORIZONTAL DRIVER CIRCUIT FOR A SHORT TO ANY PASSENGER MIRROR SENSOR GROUND OR RETURN CIRCUITS




1. Measure the resistance between the (P74) Passenger Mirror Horizontal Driver circuit and each Passenger Mirror Sensor Ground and Return circuits in the Passenger Outside Rearview Mirror C2 and C1 (Component Side) connectors.

Is the resistance below 10K Ohms between the (P74) Passenger Mirror Horizontal Driver circuit and any of the Ground or Return circuits?

Yes

- Repair the (P74) Passenger Mirror Horizontal Driver circuit for a short to the Ground or Return 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.

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