A/C Compressor
Circulates and pressurises refrigerant, and is the largest single accessory load on the engine — which is why the engine module raises idle before engaging it and why a dragging compressor shows up as an idle complaint. Lubricated by oil carried in the refrigerant itself, so running one on a system that has lost its charge destroys it. That is the reason the module refuses to engage a compressor whose pressure it cannot verify.
Also known as: air con compressor, aircon pump, ac pump, compressor clutch, climate compressor
Referenced by 25 codes
Codes involving this component (25)
- P2515 Air Conditioning Refrigerant Pressure Sensor B Circuit Moderate
- P2516 Air Conditioning Refrigerant Pressure Sensor B Circuit Range/Performance Moderate
- P2517 Air Conditioning Refrigerant Pressure Sensor B Circuit Low Moderate
- P2518 Air Conditioning Refrigerant Pressure Sensor B Circuit High Moderate
- P2519 Air Conditioning Request A Circuit Moderate
- P2520 Air Conditioning Request A Circuit Low Moderate
- P2521 Air Conditioning Request A Circuit High Moderate
- P2522 Air Conditioning Request B Circuit Moderate
- P2523 Air Conditioning Request B Circuit Low Moderate
- P2524 Air Conditioning Request B Circuit High Moderate
- P2561 Air Conditioning Control Module Requested Malfunction Indicator Lamp Illumination Moderate
- U0164 Lost Communication With HVAC Control Module Moderate
- P0530 Air Conditioning Refrigerant Pressure Sensor A Circuit Low
- P0531 Air Conditioning Refrigerant Pressure Sensor A Circuit Range/Performance Low
- P0533 Air Conditioning Refrigerant Pressure Sensor A Circuit High Low
- P0534 Air Conditioning Refrigerant Charge Loss Low
- P0535 Air Conditioning Evaporator Temperature Sensor Circuit Low
- P0645 Air Conditioning Clutch Relay Control Circuit Low
- P0646 Air Conditioning Clutch Relay Control Circuit Low Low
- P0647 Air Conditioning Clutch Relay Control Circuit High Low
- P255F Air Conditioning Request A Circuit Range/Performance
- P256F Air Conditioning Request B Circuit Range/Performance
- P2611 Air Conditioning Refrigerant Distribution Valve A Control Circuit/Open Low
- U010F Lost Communication With Air Conditioning Control Module
- U040A Invalid Data Received From Air Conditioning Control Module
Other components in Electrical and Charging
- Data Bus 563
- Battery 218
- Gateway Module 158
- Stability Control Module 122
- Battery Temperature Sensor 115
- Infotainment Head Unit 49
- Alternator 45
- Brake Booster Pressure Sensor 39
- A/C Refrigerant Pressure Sensor 33
- Brake Light Switch 32
- Cruise Control Switch 31
- Ignition Switch 31
- Cooling Fan Relay 28
- Starter Relay 25
- Clutch Switch 24
- ECM Power Relay 21
- Roof Antenna Module 19
- Immobiliser 15
- Lighting Driver Control Module 15
- Starter Motor 14
- Transmission Control Module Power Relay 14
- Fuel Pump Relay 13
- Secondary Air Injection Relay 13
- Battery Monitoring Sensor 10
- Driver Information Centre 10
- A/C Evaporator Temperature Sensor 8
- Telematics Control Module 8
- Navigation Control Module 6
- Headlamp Levelling Actuator 6
- Hydraulic Pump Relay 5
- Head-Up Display 2
Information, not instruction
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