Door Module, Rear Left (DMRL)

B114C-LEFT REAR HEATED SEAT SWITCH STUCK





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

- When Monitored:
Continuously.

- Set Condition:
When the Left Rear Heated Seat Switch is held in the on position for over 10 seconds, this code will set.





Diagnostic Test

1. TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, clear all DTC's.
3. Operate the Left Rear Heated Seat Switch several times.
4. Cycle the ignition from on to off.
5. Turn the ignition on.
6. With the scan tool, read DTC's.

Does the scan tool display active: B114C-LEFT REAR HEATED SEAT SWITCH STUCK?

Yes

- Go To 2

No

- The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary.
- Perform BODY VERIFICATION TEST. Body Verification Test.

2. (P365) LEFT REAR HEATED SEAT SWITCH SIGNAL CIRCUIT VOLTAGE
1. Turn the ignition off.
2. Disconnect the Left Rear Heated Seat Switch harness connector.
3. Turn the ignition on.
4. Measure the voltage of the (P365) Left Rear Heated Seat Switch Signal circuit at the Left Rear Heated Seat Switch harness connector.

Is the voltage above 4.5 volts?

Yes

- Go To 3

No

- Go To 4

3. (Z908) GROUND CIRCUIT OPEN
1. Turn the ignition off.
2. Using a 12-volt test light connected to 12-volts, check the (Z908) Ground circuit at the Left Rear Heated Seat Switch harness connector.

Does the test light illuminate brightly?

Yes

- Replace the Left Rear Heated Seat Switch.
- Perform BODY VERIFICATION TEST. Body Verification Test.

No

- Repair the (Z908) Ground circuit for an open.
- Perform BODY VERIFICATION TEST. Body Verification Test.

4. (P365) LEFT REAR HEATED SEAT SWITCH SIGNAL CIRCUIT OPEN
1. Turn the ignition off.
2. Disconnect the Left Rear Door Module C2 harness connector.
3. Measure the resistance of the (P365) Left Rear Heated Seat Switch Signal circuit between the Left Rear Heated Seat Switch harness connector and the Left Rear Door Module C2 harness connector.

Is the resistance below 10.0 ohms?

Yes

- Go To 5

No

- Repair the (P365) Left Rear Heated Seat Switch Signal circuit for an open.
- Perform BODY VERIFICATION TEST. Body Verification Test.

5. (P365) LEFT REAR HEATED SEAT SWITCH SIGNAL CIRCUIT SHORTED TO GROUND
1. Measure the resistance between ground and the (P365) Left Rear Heated Seat Switch Signal circuit.

Is the resistance above 10k ohms?

Yes

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

No

- Repair the (P365) Left Rear Heated Seat Switch Signal circuit for a short to ground.
- Perform BODY VERIFICATION TEST. Body Verification Test.