907B

907B-REAR WINDOW HEATER 1 CONTROL CIRCUIT LOW





For a complete wiring diagram, Refer to the Wiring Information Electrical Diagrams.

- When Monitored:
Continuously.

- Set Condition:
When the Body Control Module (BCM) detects a shorted low condition on the relay control circuit this DTC will set.





1. TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, record and erase DTCs.
3. Start the engine.
4. Operate the rear defogger switch several times.
5. With the scan tool, read DTCs.

Does the scan tool display 907B-REAR WINDOW HEATER 1 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 BODY VERIFICATION TEST. Body Verification Test.

2. DEFOGGER RELAY
1. Turn the ignition off.
2. Install a known good relay in place of the Rear Window Defogger 1 Relay.
3. Turn the ignition on.
4. With the scan tool, erase DTCs.
5. Start the engine.
6. Operate the rear defogger switch several times.
7. With the scan tool, read DTCs.

Does the scan tool display 907B-REAR WINDOW HEATER 1 CONTROL CIRCUIT LOW?

No

- Replace the original Rear Window Defogger 1 Relay.
- Perform BODY VERIFICATION TEST. Body Verification Test.

Yes

- Go To 3

3. HEATED REAR WINDOW RELAY 1 CONTROL SHORTED
1. Turn the ignition off.
2. Disconnect the Rear Window Defogger 1 Relay.
3. Disconnect the Body Control Module C9 connector.
4. Measure the resistance between ground and the Heated Rear Window Relay 1 Control circuit at the relay.

Is the resistance below 1000.0 ohms?

Yes

- Repair the Heated Rear Window Relay 1 Control circuit for a short to ground.
- Perform BODY VERIFICATION TEST. Body Verification Test.

No

- Replace the Body Control Module (BCM).
- Perform BODY VERIFICATION TEST. Body Verification Test.