B1D12

B1D12-PASSENGER MIRROR POSITION SENSOR POWER SUPPLY CIRCUIT LOW





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

- When Monitored:
Continuously.

- Set Condition:
If the Passenger Door Module senses voltage is less than 4.3 volts for more than 30 ms on the (P666) Passenger Mirror Sensor Supply circuit.





1. TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, record and erase DTCs.
3. Operate the Mirror Switch in all directions several times.
4. Cycle the ignition from on to off 3 times.
5. Turn the ignition on.
6. With the scan tool, read DTCs.

Does the scan tool display: B1D12-PASSENGER MIRROR POSITION SENSOR POWER SUPPLY CIRCUIT LOW?

Yes

- Go To 2

No

- The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. TEST FOR A SHORTED OUTSIDE REARVIEW MIRROR




1. Turn the ignition off.
2. Disconnect the Passenger Outside Rearview Mirror connector.
3. Turn the ignition on.
4. Measure the voltage between the (P666) Passenger Mirror Sensor Supply circuit and the (P66) Passenger Mirror Sensor Ground circuit.

Is the voltage above 4.6 volts?

Yes

- Replace the Outside Rearview Mirror.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 3

3. CHECK THE (P666) PASSENGER MIRROR SENSOR SUPPLY CIRCUIT FOR A SHORT TO GROUND




1. Turn the ignition off.
2. Disconnect the Passenger Door Module C2 connector.
3. Measure the resistance between ground and the (P666) Passenger Mirror Sensor Supply circuit in the Passenger Door Module C2 connector.

Is the resistance below 10k ohms?

Yes

- Repair the (P666) Passenger Mirror Sensor Supply circuit for a short to ground.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 4

4. CHECK THE (P666) PASSENGER MIRROR SENSOR SUPPLY CIRCUIT FOR A SHORT TO THE (P66) PASSENGER MIRROR SENSOR GROUND CIRCUIT




1. Measure the resistance between the (P666) Passenger Mirror Sensor Supply circuit and the (P66) Passenger Mirror Sensor Ground circuit in the Passenger Door Module C2 connector.

Is the resistance below 10k ohms?

Yes

- Repair the (P666) Passenger Mirror Sensor Supply circuit for a short to the (P66) Passenger Mirror Sensor Ground circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 5

5. CHECK THE (P666) PASSENGER MIRROR SENSOR SUPPLY CIRCUIT FOR A SHORT TO THE (C917) PASSENGER MIRROR HEATER RETURN CIRCUIT




1. Measure the resistance between the (P666) Passenger Mirror Sensor Supply circuit and the (C917) Passenger Mirror Heater Return circuit in the Passenger Outside Rearview Mirror connector.

Is the resistance below 10k ohms?

Yes

- Repair the (P666) Passenger Mirror Sensor Supply circuit for a short to the (C917) Passenger Mirror Heater Return circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

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