B1D37

B1D37-PASSENGER MIRROR HEATER CONTROL CIRCUIT LOW





For a complete wiring diagram, refer to the wiring information Electrical Diagrams.

- When Monitored:
Continuously.

- Set Condition:
When the Passenger Door Module senses a low value on the Passenger Mirror Heater Driver circuit for over 10 ms., this code will set.





1. TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, record and erase the DTCs.
3. Turn the rear defogger ON.
4. Operate the Mirror Switch in all directions several times.
5. With the scan tool, read the DTCs.

Does the scan tool display: B1D37-PASSENGER MIRROR HEATER CONTROL 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 MIRROR
1. Turn the ignition off.
2. Disconnect the Passenger Door Module C2 connector.
3. Turn the ignition on.
4. With the scan tool, erase the DTCs.
5. Turn the rear defogger ON.
6. Operate the Mirror Switch in all directions several times.
7. With the scan tool, read the DTCs.

Does the scan tool display: B1D37-PASSENGER MIRROR HEATER CONTROL CIRCUIT LOW?

Yes

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

No

- Inspect the mirror harness wires for a shorted condition and repair as necessary. If the mirror wiring is OK, replace the Mirror.
- Perform the BODY VERIFICATION TEST. Body Verification Test.