B1092

B1092-FRONT LEFT SEAT HEATER CONTROL CIRCUIT LOW





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

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

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





1. VERIFY DTC B1092-FRONT LEFT SEAT HEATER CONTROL CIRCUIT LOW IS ACTIVE
1. Turn the ignition on.
2. With the scan tool, record and erase Diagnostic Trouble Codes (DTCs).
3. Operate the Heated Seat Switch in both positions several times.
4. With the scan tool, read the DTCs.

Is DTC B1092-FRONT LEFT SEAT HEATER CONTROL CIRCUIT LOW active?

Yes

- Go To 2

No

- The conditions that caused this code to set are not present at this time. Verify seat harness is routed correctly. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Look for chafed, pierced, pinched or partially broken wires and broken, bent, pushed out, spread, corroded or contaminated terminals. Attempt to reproduce condition by adjusting the seat.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. CHECK (P187) LEFT SEAT HEATER B(+) DRIVER CIRCUIT IN BODY HARNESS FOR A SHORT TO GROUND




1. Turn the ignition off.
2. Disconnect the Left Seat Cushion Heater connector.

NOTE: Check connectors. Clean and repair as necessary.

3. Turn the ignition on.
4. With the scan tool, erase the DTCs.
5. Operate the Heated Seat Switch in both positions several times.
6. With the scan tool, read the DTCs.

Is DTC B1092-FRONT LEFT SEAT HEATER CONTROL CIRCUIT LOW active?

Yes

- Go To 3

No

- Go To 5

3. CHECK (P187) LEFT SEAT HEATER B(+) DRIVER CIRCUIT FOR A SHORT TO GROUND




1. Turn the ignition off.
2. Disconnect the HSM connector.

NOTE: Check connectors. Clean and repair as necessary.

3. Measure the resistance of the (P187) Left Seat Heater B(+) Driver circuit between ground and the HSM connector.

Is the resistance below 10K Ohms?

Yes

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

No

- Go To 4

4. CHECK (P187) LEFT SEAT HEATER B(+) DRIVER CIRCUIT FOR A SHORT TO (Z960) GROUND CIRCUIT




1. Measure the resistance between the (P187) Left Seat Heater B(+) Driver circuit and the (Z960) Ground circuit at the HSM connector.

Is the resistance below 10K Ohms?

Yes

- Repair the (P187) Left Seat Heater B(+) Driver circuit for a short to (Z960) Ground circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

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

5. CHECK LEFT SEAT CUSHION HEATER FOR A SHORT TO GROUND




1. Turn the ignition off.
2. Reconnect the Left Seat Cushion Heater connector.
3. Disconnect the Left Seat Back Heater connector.

NOTE: Check connectors. Clean and repair as necessary.

4. Turn the ignition on.
5. With the scan tool, erase the DTCs.
6. Operate the Heated Seat Switch in both positions several times.
7. With the scan tool, read the DTCs.

Is DTC B1092-FRONT LEFT SEAT HEATER CONTROL CIRCUIT LOW active?

Yes

- Replace the shorted Left Seat Cushion Heater Element.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Replace the Left Seat Back Heater Element.
- Perform the BODY VERIFICATION TEST. Body Verification Test.