Section 57 (HVAC System (Diagnostics))
WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.
- Basic Diagnostic Procedure
- Check List for Interview
- General Description
- Electrical Component Location
- Control Module I/O Signal
- Inspection Mode
- Diagnostic Procedure for Subaru Select Monitor Communication
- Data Monitor
- Freeze Frame Data
- Active Test
- Customize
- Work Support
- Diagnostic Trouble Code (DTC)
- Diagnostic Procedure with Diagnostic Trouble Code (DTC)
- DTC B1430: In-Vehicle (Post Evaporator) Temperature Sensor Circuit Open
- DTC B1431: In-Vehicle (Post Evaporator) Temperature Sensor Circuit Short-Circuit
- DTC B1432: Ambient Temperature Sensor Circuit Open (Air-Conditioner)
- DTC B1433: Ambient Temperature Sensor Circuit Short-Circuit (Air-Conditioner)
- DTC B1434: Evaporator Temperature Sensor Circuit Open
- DTC B1435: Evaporator Temperature Sensor Circuit Short-Circuit
- DTC B1436: Air Mix Door Actuator Circuit Open (Passenger)
- DTC B1437: Air Mix Door Actuator Circuit Short-Circuit (Passenger)
- DTC B1438: Mode Door Actuator Circuit Open
- DTC B1439: Mode Door Actuator Circuit Short-Circuit
- DTC B1440: Air Mix Door Actuator Circuit Open (Driver)
- DTC B1442: Air Mix Door Actuator Circuit Short-Circuit (Driver)
- DTC B14A1: SUNLOAD Sensor Circuit Low/Open
- DTC B14A2: SUNLOAD Sensor Circuit Short-Circuit
- DTC B14A3: Refrigerant Pressure Sensor Circuit Open
- DTC B14A4: Refrigerant Pressure Sensor Circuit Short-Circuit
- DTC B14A7: Variable Solenoid Valve Circuit
- DTC B14A8: Compressor Break-In Malfunction Low Refrigerant
- DTC B14B1: Seat Heater Thermistor Circuit Open (Driver)
- DTC B14B2: Seat Heater Thermistor Circuit Short-Circuit (Driver)
- DTC B14B3: Seat Heater Thermistor Circuit Open (Passenger)
- DTC B14B4: Seat Heater Thermistor Circuit Short-Circuit (Passenger's)
- DTC B14E9: Intake Door Actuator Circuit Open
- DTC B14EA: Intake Door Actuator Circuit Short-Circuit
- DTC B14EB: Intake Door Actuator Stuck
- DTC B14EC: Humidity Sensor Circuit Open
- DTC B14ED: Humidity Sensor Circuit Short
- DTC B14EE: Refrigerant Pressure Sensor Circuit Open (Hose Pressure Discharge)
- DTC B14EF: Refrigerant Pressure Sensor Circuit Short-Circuit (Hose Pressure Discharge)
- DTC U0073: Control Module Communication Bus Off
- DTC U0100: Lost Communication With ECM/Pcm "A"
- DTC U0122: Lost Communication With Vehicle Dynamics Control Module
- DTC U0140: Lost Communication With Body Control Module
- DTC U0155: Lost Communication With Instrument Panel Cluster (IPC) Control Module
- DTC U0162: Lost Communication With Audio Visual Navigation Display Module
- DTC U0401: Invalid Data Received From ECM/Pcm "A"
- DTC U0416: Invalid Data Received From Vehicle Dynamics Control Module
- DTC U0422: Invalid Data Received From Body Control Module
- DTC U0423: Invalid Data Received From Instrument Panel Cluster Control Module
- DTC U0463: Invalid Data Received From Navigation Display Module
- DTC U1146: Lost Communication With Gateway "A" Body-Can
- Diagnostics with Phenomenon
- List
- Inspection
- Nothing Is Displayed On The Screen Or Indicators Do Not Illuminate
- Air Conditioner Does Not Stop Even When The On/Off Button Is Pressed
- The Windshield Glass Is Not Cleared Even When The Def Button Is Turned To On
- Cold Air Not Emitted
- Warm Air Not Emitted
- Compartment Temperature Is Excessively Lower Than Setting Temperature
- Compartment Temperature Is Excessively Higher Than Setting Temperature
- Air Does Not Come Out, Or Airflow Capacity Is Insufficient. (Blower Motor Does Not Rotate)
- Air Goes Out Of Control. (Blower Motor Rotates At High Speed)
- Cold Air Does Not Come Out Even When The A/C Button Is Pressed; The Glass Cannot Be Defogged. (Compressor Does Not Operate.)
- Unable To Switch Suction Vents
- Unable To Switch Blow Vents