Section 602 (HVAC Systems - Automatic)
WARNING: This page is about a different car, the 2003 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: Actual Door Position Differs From The Commanded Door Position
- DTC B0130, B0414, or B0424: Door Position Signal Circuit
- DTC B0160 or B0162: Ambient Air Temperature Sensor Signal Circuit
- DTC B0164: Inside Air Temperature Sensor Signal Circuit
- DTC B0184 or B0189: Sunload Sensor
- DTC P0532 or P0533: A/C Refrigerant Pressure Sensor Signal Voltage
- DTC P0645, P0646, or P0647: A/C Compressor Clutch Relay Control Circuit
- DTC P1531: Evaporator Temperature Sensor Signal Circuit
- 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