Section 650 (HVAC Systems - Automatic)
WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic & Routing Diagrams
- Component Locator
- Diagnostic Information & 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 B0159: Signal Circuit Voltage Out Of Range
- DTC B0164: Signal Circuit Voltage Out Of Range
- DTC B0174: Signal Circuit Voltage Out Of Range
- DTC B0179: Signal Circuit Voltage Out Of Range
- DTC B0184: Signal Circuit Voltage Out Of Range
- DTC B0229: Recirculation Actuators Travel Range
- DTC B0248: Mode Door Position Error
- DTC B0268: Recirculation Door Position Error
- DTC B0408: Air Mix Door Position Error
- DTC B0414: Air Temperature Door/Actuator
- DTC B3761: Mode Door/Actuator Error
- 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
- Outside Air Temperature Display Inaccurate Or Inoperative
- Recalibrating Actuators
- Repair Instructions
- HVAC Control Module Replacement
- Blower Motor Control Processor Replacement
- Recirculation Actuator Replacement
- Mode Actuator Replacement (W/O D07)
- Mode Actuator Replacement (W/ D07)
- Air Temperature Actuator Replacement
- Air Temperature Sensor Replacement - Upper
- Air Temperature Sensor Replacement - Lower
- Ambient Air Temperature Sensor Replacement
- Inside Air Temperature Sensor Replacement
- Sun Load Sensor Replacement
- Description & Operation
- Special Tools & Equipment