U0144
Lost Communication with A/C Compressor Control Module
2006-2011 BMW 325i 3.0L I6 N52 🇩🇪
Moderate SeverityNetwork
Description
Cannot communicate with the air conditioning compressor clutch control module.
Symptoms
- A/C not engaging
- A/C compressor not running
- Climate control warning
- No cold air from vents
Common Causes
- A/C compressor module failure
- CAN bus wiring
- Module power loss
- Fuse blown
- Compressor clutch failure
Diagnostic Steps
- Check A/C compressor fuse
- Test module power and ground
- Check CAN wiring
- Test compressor clutch directly
- Check refrigerant pressure
Repair Notes
Check refrigerant charge first, then fuses. Low refrigerant prevents compressor engagement.
Related Codes
Other Network Codes
- U0001High Speed CAN Communication Bus
- U0002High Speed CAN Communication Bus Performance
- U0003High Speed CAN Communication Bus (+) Open
- U0004High Speed CAN Communication Bus (+) Low
- U0005High Speed CAN Communication Bus (+) High
- U0006High Speed CAN Communication Bus (-) Open
- U0007High Speed CAN Communication Bus (-) Low
- U0008High Speed CAN Communication Bus (-) High
- U0009High Speed CAN Communication Bus Shorted Together
- U0010Medium Speed CAN Communication Bus
U0144 on Other Vehicles
Common Questions
What does code U0144 mean on a 2006-2011 BMW 325i?
U0144 stands for "Lost Communication with A/C Compressor Control Module". Cannot communicate with the air conditioning compressor clutch control module.
What are the symptoms of U0144 on a BMW 325i?
Common symptoms of U0144 include: A/C not engaging, A/C compressor not running, Climate control warning, No cold air from vents.
What causes U0144 on a 2006-2011 BMW 325i?
Common causes of U0144 include: A/C compressor module failure, CAN bus wiring, Module power loss, Fuse blown, Compressor clutch failure.