U1544
Body Control Module Lost Communication With Left Rear Window Motor On LIN Bus
U1544 is an OBD-II diagnostic trouble code meaning: Body Control Module Lost Communication With Left Rear Window Motor On LIN Bus. Common causes: broken or damaged wiring to the window motor, left rear window motor malfunction. Estimated repair cost: $33–167.
Symptoms
- Left rear window doesn't work
- Intermittent left rear window operation
- The window does not respond to commands from the switch
- The electrical fault indicator lights up
Causes
- Broken or damaged wiring to the window motor
- Left rear window motor malfunction
- Body Module (BCM) Problems
- Short circuit in the LIN bus circuit
- Poor contact in connectors
How to Fix
- Check the integrity of the wiring to the window motor
- Diagnose the operation of the left rear window motor
- Check connections and connectors for corrosion or damage
- Scan the body module for other errors
- If necessary, replace the window motor or repair the wiring
Related codes
FAQ
What does the U1544 code mean?
U1544 is an OBD-II diagnostic trouble code that indicates: Body Control Module Lost Communication With Left Rear Window Motor On LIN Bus
What causes a U1544 error code?
The most common causes of U1544 include: Broken or damaged wiring to the window motor; Left rear window motor malfunction; Body Module (BCM) Problems; Short circuit in the LIN bus circuit.
How do I fix a U1544 diagnostic trouble code?
To fix U1544: Check the integrity of the wiring to the window motor. Diagnose the operation of the left rear window motor. Check connections and connectors for corrosion or damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1544?
Limited driving only, diagnose soon
How much does it cost to fix U1544?
The estimated repair cost for U1544 is $33–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat