Heated Seats

9030-LEFT SEAT HEATER CONTROL CIRCUIT PERFORMANCE - SBM





For a complete wiring diagram Consult Diagrams/Electrical.

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

- Set Condition:
This code is set when the Switch Bank Module (SBM) detects an over current condition on the heated seat driver circuit.





Diagnostic Test

1. TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
With the scan tool, clear all DTC's.
Operate the Heated Seat Switch several times.
With the scan tool, read DTC's.
Does the scan tool display active: 9030-LEFT SEAT HEATER CONTROL CIRCUIT PERFORMANCE?

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 - VER 1. Verification Tests

2. SEAT HEATER ELEMENT
Turn the ignition off.
Disconnect the seat heater connector.
Turn the ignition on.
With the scan tool, clear all DTC's.
Operate the Heated Seat Switch several times.
With the scan tool, read DTC's.
Does the scan tool display active: 9030-LEFT SEAT HEATER CONTROL CIRCUIT PERFORMANCE?

Yes

- Go To 3

No

- Repair/replace the pigtail/heating element as necessary for a short to ground.
- Perform BODY VERIFICATION TEST - VER 1. Verification Tests

3. LEFT HEATED SEAT DRIVER CIRCUIT SHORTED TO GROUND
Disconnect the Switch Bank Module C1 harness connector.
Measure the resistance between ground and the Left Heated Seat Driver circuit at the SBM harness connector.
Is the resistance above 10k ohms?

Yes

- Replace the Switch Bank Module (SBM)
- Perform BODY VERIFICATION TEST - VER 1. Verification Tests

No

- Repair the Left Heated Seat Driver circuit for a short to ground.
- Perform BODY VERIFICATION TEST - VER 1. Verification Tests