U1549
Body Control Module Lost Communication With Rear Wiper Motor On LIN Bus
U1549 is an OBD-II diagnostic trouble code meaning: Body Control Module Lost Communication With Rear Wiper Motor On LIN Bus. Common causes: rear wiper motor malfunction, open or short circuit in lin circuit. Estimated repair cost: $17–89.
Symptoms
- Rear wiper does not work
- Rear wiper does not respond to commands
- Fault indication on the instrument panel
- Diagnostic system memory error
Causes
- Rear wiper motor malfunction
- Open or short circuit in LIN circuit
- Damaged wiper motor connector or BCM
- Body module software error
- Problems with power supply to the wiper motor
How to Fix
- Check the power and ground of the wiper motor
- Inspect connectors and wiring for damage
- Check the resistance of the wiper motor
- Scan the LIN bus for signal presence
- Replace wiper motor or BCM if necessary
Related codes
FAQ
What does the U1549 code mean?
U1549 is an OBD-II diagnostic trouble code that indicates: Body Control Module Lost Communication With Rear Wiper Motor On LIN Bus
What causes a U1549 error code?
The most common causes of U1549 include: Rear wiper motor malfunction; Open or short circuit in LIN circuit; Damaged wiper motor connector or BCM; Body module software error.
How do I fix a U1549 diagnostic trouble code?
To fix U1549: Check the power and ground of the wiper motor. Inspect connectors and wiring for damage. Check the resistance of the wiper motor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1549?
Yes, but get it checked soon
How much does it cost to fix U1549?
The estimated repair cost for U1549 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat