U2144
Lost Communication With Distance Sensing Cruise Control Module
U2144 is an OBD-II diagnostic trouble code meaning: Lost Communication With Distance Sensing Cruise Control Module. Common causes: open or short circuit in the can bus, malfunction of the adaptive cruise control module. Estimated repair cost: $56–278.
Symptoms
- Adaptive cruise control does not turn on
- There is a cruise control fault warning light on the dashboard.
- The automatic braking system may not work
- Other related CAN bus errors may occur
Causes
- Open or short circuit in the CAN bus
- Malfunction of the adaptive cruise control module
- Problems with module power supply (blown fuse)
- Damage to the wiring harness to the module
- Corroded connectors or poor contact
How to Fix
- Check fuses related to the cruise control system
- Inspect the connectors and wiring to the cruise control module
- Check the supply voltage on the module
- Scan the CAN bus for communication errors
- If necessary, replace the adaptive cruise control module
Related codes
FAQ
What does the U2144 code mean?
U2144 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Distance Sensing Cruise Control Module
What causes a U2144 error code?
The most common causes of U2144 include: Open or short circuit in the CAN bus; Malfunction of the adaptive cruise control module; Problems with module power supply (blown fuse); Damage to the wiring harness to the module.
How do I fix a U2144 diagnostic trouble code?
To fix U2144: Check fuses related to the cruise control system. Inspect the connectors and wiring to the cruise control module. Check the supply voltage on the module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U2144?
Do not drive — repair immediately
How much does it cost to fix U2144?
The estimated repair cost for U2144 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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