Section 102 (HVAC System - Automatic)
WARNING: This page is about a different car, the 2015 Buick LaCrosse. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic Wiring Diagrams
- HVAC Wiring Schematics
- Module Power, Ground, Serial Data, and Controls
- Auxiliary Radio/HVAC Controls (ULG)
- A/C Compressor Controls
- Blower Motor and Auxiliary Blower Motor Controls (CJ4)
- Mode and Temperature Control Actuators (1 of 2)
- Mode and Temperature Control Actuators (2 of 2) (CJ4)
- Temperature Sensors
- Air Quality, Ambient Light, and Sunload Sensors
- Heater Coolant Pump (LUK)
- Air Purification (KEI)
- HVAC Wiring Schematics
- Diagnostic Information and Procedures
- HVAC Component Replacement Reference
- DTC B0163, B0183, or B1405: Passenger Compartment Temperature/Solar Load Sensor/Control Module Voltage
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B0173, B0178, B0509, B0514, B0519, B3583, or B3933: Duct Air Temperature
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B018A, B048C, B048F, or B1395: Windshield Temperature Sensor/Humidity Sensor Temperature/Control Module Voltage
- DTC B0193: Front Blower Motor
- DTC B0208: Rear Blower Motor Speed Circuit
- DTC B0223, B022A, B0233, B023A, B0408, B0418, B0428, or B3531: Recirculate Position Command/Air Flow Control/Temperature Control
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B269A, B269C, or B269D: Heater Coolant Pump
- DTC B3843: Air Quality Sensor
- DTC B393B: Air Conditioning Compressor Valve Control Circuit
- DTC P0532 or P0533: Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC P0645, P0646, or P0647: Air Conditioning (A/C) Compressor Clutch Relay Control Circuit
- Symptoms - HVAC Systems - Automatic
- HVAC System Malfunction
- Air Conditioning Compressor Malfunction
- Afterblow Enabling
- Actuator Recalibration
- Repair Instructions
- Heater and Air Conditioning Control Replacement
- Heater and Air Conditioning Remote Control Replacement
- Heater and Blower and Air Conditioning Control Module Replacement
- Mode Valve Lever Replacement
- Vent Valve Lever Replacement
- Air Inlet Valve Actuator Replacement (CJ2)
- Air Inlet Valve Actuator Replacement (Without CJ2)
- Mode Valve Actuator Gear Replacement
- Mode Valve Gear Replacement
- Air Inlet Valve Actuator Gear Replacement
- Air Inlet Valve and Inside Air Valve Control Cam Replacement
- Inside Air Valve Actuator Replacement (CJ2)
- Mode Control Cam Actuator Replacement
- Mode Control Cam Replacement
- Mode Control Cam Alignment
- Temperature Valve Actuator Replacement - Right Side
- Temperature Valve Actuator Replacement - Left Side
- Air Conditioning Refrigerant Temperature Sensor Replacement
- Duct Air Temperature Sensor Replacement - Upper Right Side (CJ2)
- Duct Air Temperature Sensor Replacement - Upper Left Side
- Duct Air Temperature Sensor Replacement - Lower Left Side
- Duct Air Temperature Sensor Replacement - Lower Right Side (CJ2)
- Ambient Air Quality Sensor Replacement
- Inside Air Moisture and Windshield Temperature Sensor Replacement
- Sun Load Temperature and Headlamp Automatic Control Ambient Light Sensor Replacement
- Description and Operation