Section 650 (HVAC Systems - Automatic)
WARNING: This page is about a different car, the 2004 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic and Routing Diagrams
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic System Check - HVAC Systems - Automatic
- Scan Tool Output Controls
- Scan Tool Data List
- Scan Tool Data Definitions
- Diagnostic Trouble Code (DTC) List
- DTC B0126, B0409, or B0419: Air Temperature/Mode Door Actuator Performance
- DTC B0130, B0414, or B0424: Air Temperature/Mode Door Actuator Malfunction
- DTC B0157: Air Conditioning (A/C) Refrigerant Small Leak Detected
- DTC B0160 or B0162: Ambient Air Temperature Sensor Circuit
- DTC B0164: Passenger Compartment Temperature Sensor #1 Circuit Range/Performance
- DTC B0184 or B0189: Incorrect Electronic Front End Sensor 1 Installed
- DTC P0530, P0532, or P0533: Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit
- DTC P0645, P0646, P0647, P1539, or P1546: A/C Compressor Clutch Relay Circuit
- DTC P1531: A/C Temperature Sensor Circuit Malf
- Symptoms - HVAC Systems - Automatic
- HVAC Compressor Clutch Does Not Engage
- HVAC Compressor Clutch Does Not Disengage
- Blower Motor Always On
- Blower Motor Inoperative
- Blower Motor Malfunction
- Too Hot in Vehicle
- Too Cold in Vehicle
- Air Delivery Improper
- Air Recirculation Malfunction
- Afterblow Enable Procedure
- Repair Instructions
- HVAC Control Module Replacement
- Blower Motor Control Processor Replacement (LHD)
- Blower Motor Control Processor Replacement (RHD)
- Recirculation Actuator Replacement (LHD)
- Recirculation Actuator Replacement (RHD)
- Mode Actuator Replacement
- Air Temperature Actuator Replacement - Right (LHD)
- Air Temperature Actuator Replacement - Right (RHD)
- Air Temperature Actuator Replacement - Left
- Ambient Air Temperature Sensor Replacement
- Inside Air Temperature Sensor Replacement
- Sun Load Sensor Replacement
- Description and Operation
- Special Tools and Equipment