B1092

B1092-FRONT LEFT SEAT HEATER CONTROL CIRCUIT LOW - RHD

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

- When Monitored:
Ignition on, during the heated seat operation.

- Set Condition:
This code is set immediately after the Heated Seat Module (HSM) detects the (P187) Left Seat Heater B(+) Driver circuit shorted to ground.





Diagnostic Test

1. TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, clear all DTC's.
3. Operate the Heated Seat Switch in both positions several times.

NOTE: Adjust the seat forward and rearward as well as the seat back position while performing this test. This can help uncover an intermittent wiring problem with the heating element in the seat.

4. With the scan tool, read DTC's.

Does the scan tool display active: B1092-FRONT LEFT SEAT HEATER CONTROL CIRCUIT LOW?

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. (P187) LEFT SEAT HEATER B(+) DRIVER CIRCUIT SHORTED TO GROUND
1. Turn the ignition off.
2. Disconnect the driver seat C376 14 way in-line harness connector.

NOTE: Check connectors - Clean and repair as necessary.

3. Measure the resistance of the (P187) Left Seat Heater B(+) Driver circuit to the (Z908) Ground circuit at the driver seat C376 14 way in-line harness connector (body side).

Is the resistance below 1.0 ohm?

Yes

- Go To 3

No

- Go To 4

3. (P187) LEFT SEAT HEATER B(+) DRIVER CIRCUIT SHORTED TO GROUND
1. Disconnect the passenger seat C378 10 way harness connector.

NOTE: Check connectors - Clean and repair as necessary.

2. Measure the resistance of the (P187) Left Seat Heater B(+) Driver circuit to the (Z908) Ground circuit at the driver seat C376 14 way in-line harness connector (body side).

Is the resistance below 1.0 ohm?

Yes

- Repair the (P187) Left Seat Heater B(+) Driver circuit for a short to ground.
- Perform BODY VERIFICATION TEST. Body Verification Test.

No

- Repair/replace the passenger seat pigtail/heating element(s) or seat harness as necessary for a short to ground.
- Perform BODY VERIFICATION TEST. Body Verification Test.

4. (P187) FRONT LEFT SEAT HEATER CONTROL CIRCUIT SHORTED TO GROUND
1. Disconnect the Heated Seat Module harness connector.

NOTE: Check connectors - Clean and repair as necessary.

2. Measure the resistance between ground and the (P187) Left Seat Heater B(+) Driver circuit at the HSM harness connector.

Is the resistance below 10k ohms?

Yes

- Repair the (P187) Left Seat Heater B(+) Driver circuit for a short to ground.
- Perform BODY VERIFICATION TEST. Body Verification Test.

No

- Replace the Heated Seat Module (HSM).
- Perform BODY VERIFICATION TEST. Body Verification Test.