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HVAC - Automatic - Diagnostic Trouble Codes

HVAC - AUTOMATIC - DIAGNOSTIC CODE INDEX

DTC Description
DTC B0163, B0183, or B1405 B0163 02: Passenger Compartment Temperature Sensor Circuit Short to Ground
B0163 05: Passenger Compartment Temperature Sensor Circuit High Voltage/Open
B0183 02: Solar Load Sensor Circuit Short to Ground
B0183 05: Solar Load Sensor Circuit High Voltage/Open
B1405 02: Control Module Voltage Reference Output 2 Circuit Short to Ground
B1405 05: Control Module Voltage Reference Output 2 Circuit High Voltage/Open
DTC B018A, B048C, B048F, or B1395 B018A 02: Windshield Temperature Sensor Circuit Short to Ground
B018A 05: Windshield Temperature Sensor Circuit High Voltage/Open
B048C 02: Humidity Sensor Humidity Circuit Short to Ground
B048C 05: Humidity Sensor Humidity Circuit High Voltage/Open
B048F 02: Humidity Sensor Temperature Circuit Short to Ground
B048F 05: Humidity Sensor Temperature Circuit High Voltage/Open
B1395 03: Control Module Voltage Reference Output Circuit Low Voltage
B1395 07: Control Module Voltage Reference Output Circuit High Voltage
DTC B0193 B0193 01: Front Blower Motor Speed Circuit Short to Battery
B0193 06: Front Blower Motor Speed Circuit Low Voltage/Open
DTC B0223, B0233, B023A, or B0408 B0223 01: Recirculate Position Command 1 Circuit Short to Battery
B0223 06: Recirculate Position Command 1 Circuit Short to Ground or Open
B0233 01: Air Flow Control Circuit Short to Battery
B0233 06: Air Flow Control Circuit Short to Ground or Open
B023A 02: HVAC Actuators Supply Voltage Short to Ground
B0408 01: Main Temperature Control Circuit Short to Battery
B0408 06: Main Temperature Control Circuit Short to Ground or Open
DTC B0468, B046B, or B046C B0468 01: Auxiliary Heater Coolant Pump Control Circuit Short to Battery
B0468 06: Auxiliary Heater Coolant Pump Control Circuit Low Voltage/Open
B046B 00: Auxiliary Heater Coolant Pump Feedback Circuit Malfunction
B046C 02: Auxiliary Heater Coolant Pump Enable Circuit Short to Ground
B046C 05: Auxiliary Heater Coolant Pump Enable Circuit High Voltage/Open
DTC B3933 B3933 02: Evaporator Air Temperature Sensor Short to Ground
B3933 05: Evaporator Air Temperature Sensor Short to Battery or Open
DTC P0071-P0073 P0071: Ambient Air Temperature Sensor Performance
P0072: Ambient Air Temperature Sensor Circuit Low Voltage
P0073: Ambient Air Temperature Sensor Circuit High Voltage
DTC P0531, P0532, or P0533 P0531: Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit
P0532: Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit Low Voltage
P0533: Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit High Voltage
DTC P0534 P0534: Air Conditioning (A/C) Refrigerant Charge Low
DTC P0536-P0538 or P15B3 P0536: Air Conditioning (A/C) Evaporator Temperature Sensor 2 Performance
P0537: Air Conditioning (A/C) Evaporator Temperature Sensor 2 Circuit Low Voltage
P0538: Air Conditioning (A/C) Evaporator Temperature Sensor 2 Circuit High Voltage
P153B: Air Conditioning (A/C) Evaporator Temperature Sensor 2 not Plausible
DTC P0D69-P0D7F P0D69: A/C Compressor Motor Voltage Sensor Performance
P0D6A: A/C Compressor Motor Voltage Sensor Circuit High Voltage
P0D6B: A/C Compressor Motor Voltage Sensor Circuit Low Voltage
P0D6F: A/C Compressor Motor High Current
P0D71: Electric A/C Compressor Control Module Temperature Sensor Performance
P0D72: Electric A/C Compressor Control Module Temperature Sensor Circuit High Voltage
P0D73: Electric A/C Compressor Control Module Temperature Sensor Circuit Low Voltage
P0D76: Electric A/C Compressor Control Module Output Driver Temperature Sensor Performance
P0D77: Electric A/C Compressor Control Module Output Driver Temperature Sensor Circuit High Voltage
P0D78: Electric A/C Compressor Control Module Output Driver Temperature Sensor Circuit Low Voltage
P0D7A: A/C Compressor Motor Phase U Low Current
P0D7B: A/C Compressor Motor Phase U High Current
P0D7C: A/C Compressor Motor Phase V Low Current
P0D7D: A/C Compressor Motor Phase V High Current
P0D7E: A/C Compressor Motor Phase W Low Current
P0D7F: A/C Compressor Motor Phase W High Current
DTC P151C or P2516-P2518 P151C: Air Conditioning (A/C) Low Side Refrigerant Pressure Sensor Not Plausible
P2516: Air Conditioning (A/C) Low Side Refrigerant Pressure Sensor Performance
P2517: Air Conditioning (A/C) Low Side Refrigerant Pressure Sensor Circuit Low Voltage
P2518: Air Conditioning (A/C) Low Side Refrigerant Pressure Sensor Circuit High Voltage
DTC P1ECA or P1EC9 P1ECA: HV Voltage Instant Overvoltage Performance Fault
P1EC9: DC Link Instant Overcurrent
DTC P1F0A-P1F0D P1F0A: Electric A/C Compressor Control Module A/C Compressor Motor Current Feedback Circuit Low
P1F0B: ACCM Motor drive circuit fault
P1F0C: Electric A/C Compressor Control Module A/C Compressor Motor Current Feedback Circuit High
P10FD: A/C Compressor Motor Start-Up Current Performance
DTC P2681, P26A3, P26A6, P26A7, or P26A9 P2681: Engine Coolant Bypass Valve Control Circuit
P26A3: Engine Coolant Bypass Valve Performance
P26A6: Engine Coolant Bypass Valve Position Sensor Circuit Low Voltage
P26A7: Engine Coolant Bypass Valve Position Sensor Circuit High Voltage
P26A9: Engine Coolant Bypass Valve Position Sensor Stop Performance