U151B
Body Control Module Lost Communication With Sunroof Control Module On LIN Bus
U151B is an OBD-II diagnostic trouble code meaning: Body Control Module Lost Communication With Sunroof Control Module On LIN Bus. Common causes: open or short circuit in the lin bus circuit, sunroof control module malfunction. Estimated repair cost: $56–167.
Symptoms
- Sunroof does not open/close
- Hatch works intermittently
- Sunroof fault indication on the instrument panel
- The sunroof does not respond to commands from the control button
Causes
- Open or short circuit in the LIN bus circuit
- Sunroof control module malfunction
- Power problems with the sunroof control module
- Corrosion or poor contact in connectors
- Body Module (BCM) Malfunction
How to Fix
- Check the integrity of the LIN bus wiring
- Check the power and ground of the sunroof control module
- Inspect connectors for corrosion or damage
- Scan the sunroof control module for errors
- If necessary, replace the sunroof control module
Related codes
FAQ
What does the U151B code mean?
U151B is an OBD-II diagnostic trouble code that indicates: Body Control Module Lost Communication With Sunroof Control Module On LIN Bus
What causes a U151B error code?
The most common causes of U151B include: Open or short circuit in the LIN bus circuit; Sunroof control module malfunction; Power problems with the sunroof control module; Corrosion or poor contact in connectors.
How do I fix a U151B diagnostic trouble code?
To fix U151B: Check the integrity of the LIN bus wiring. Check the power and ground of the sunroof control module. Inspect connectors for corrosion or damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U151B?
Yes, but get it checked soon
How much does it cost to fix U151B?
The estimated repair cost for U151B is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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