GM Service Manual Online
For 1990-2009 cars only

Description

Module

DTC B0159 Outside Air Temperature Sensor Circuit Range/Performance

HVAC

DTC B0164 Passenger Compartment Temperature Sensor #1 (Single Sensor or LH) Circuit Range/Performance

HVAC

DTC B0174 Output Air Temperature Sensor #1 (Upper; Single or LH) Circuit Range/Performance

HVAC

DTC B0179 Output Air Temperature Sensor #2 (Lower; Single or LH) Circuit Range/Performance

HVAC

DTC B0184 Solar Load Sensor #1 CKT Range

HVAC

DTC B0229 Air Flow Control #7 (Recirc) Feedback Circuit Range/Performance

HVAC

DTC B0248 Mode Door Inoperative Error

HVAC

DTC B0268 Air Flow Control #7 (Recirc) Circuit Malfunction

HVAC

DTC B0408 Temperature Control #1 (Main/Front) Circuit Malfunction

HVAC

DTC B0414 Temperature Control #1 (Main/Front) Feedback Circuit Range/Performance

HVAC

DTC B0429 Air Mix Door #3 Range Error

HVAC

DTC B0434 Temperature Control #3 Rear Feedback Circuit Range

HVAC

DTC B1000 ECU Malfunction

HVAC

DTC B1020 Auxiliary ECU Malfunction

HVAC

DTC B3531 Air Flow Control #10 Rear Circuit Malfunction

HVAC

DTC B3579 Output Air Temperature Sensor #6 Circuit Range/Performance

HVAC

DTC B3584 Output Air Temperature Sensor #7 Circuit Range/Performance

HVAC

DTC B3761 Air Flow Control #3 (Blend Defog/Floor) Feedback Circuit Range/Performance

HVAC

DTC B3764 Airflow Control #4 Mode Feedback Circuit Malfunction

HVAC

DTC U1500 Communication (Front to Rear) State of Health

HVAC