Section 21 (HVAC System - Automatic)
WARNING: This page is about a different car, the 2001 Pontiac Bonneville and 2000 Pontiac Bonneville. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Description
- Operation
- Programming
- Trouble Shooting
- Symptom Tests
- Notes
- A/C-Heater Control Unit Illumination/Display Does Not Operate Properly
- A/C-Heater Control Unit Does Not Maintain Set Temperature
- A/C System Insufficient Cooling
- Air RECIRCULATION Malfunction
- Ambient (Outside) Air Temperature Display Is Inaccurate
- Blower Motor Does Not Operate Properly
- Blower Motor Is Inoperative
- Improper Air Delivery
- Improper Control Response
- Insufficient Defrosting
- Set Temperature Requires Frequent Adjustment
- Temperature Is Different Between Driver And Passenger Outlets
- Too Cold Inside Vehicle
- Too Warm Inside Vehicle
- Self-Diagnostics
- Diagnostic Tests
- DTC B0126: Upper Right Air Temperature Sensor
- DTC B0131: Lower Right Air Temperature Sensor
- DTC B0159: Ambient Air Temperature Sensor
- DTC B0164: Inside Air Temperature Sensor
- DTC B0174: Upper Left Air Temperature Sensor
- DTC B0179: Lower Left Air Temperature Sensor
- DTC B0184 Or B0189: SUNLOAD Sensor
- DTC B0234: Air Mix Door No. 1 Range Error
- DTC B0237: Left Temperature Actuator
- DTC B0249: Mode Door Range Error
- DTC B0252: Mode Door Inoperative
- DTC B0269: RECIRCULATION Door Range Is Not Correct
- DTC B0272: RECIRCULATION Actuator Inoperative
- DTC B0279: Right Air Temperature Actuator Travel Range Error
- DTC B0282: Right Temperature Actuator Inoperative
- DTC B1000: Loss Of Communication To Instrument Panel Module
- DTC P0530 : A/C Pressure Sensor (Voltage High Or Low)
- DTC P1536: Engine Coolant Temperature Sensor
- DTC P1540: A/C Pressure Sensor
- DTC P1545 & P1546: A/C Clutch Relay Control Circuit
- System Tests
- Removal & Installation
- Torque Specifications
- Wiring Diagrams