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Seat System DTCS

HVAC MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Description Action
B12AB Drivers Heated Seat Relay Drive Circuit Shorted to Battery Voltage GO to PINPOINT TEST B .
B12AC Drivers Heated Seat Relay Drive Circuit Open or Shorted to Ground If the driver heated seat does not heat, GO to PINPOINT TEST B .
If the driver heated seat will not shut off, GO to PINPOINT TEST D .
B12AD Passenger Heated Seat Relay Drive Circuit Shorted to Battery Voltage GO to PINPOINT TEST C .
B12AE Passenger Heated Seat Relay Drive Circuit Open or Shorted to Ground If the passenger heated seat does not heat, GO to PINPOINT TEST C .
If the passenger heated seat will not shut off, GO to PINPOINT TEST D .
All Other DTCs - REFER to DIAGNOSTIC TROUBLE CODE (DTC) CHART article.
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