U1550
Body Control Module Lost Communication With Driver Seat Heating and Cooling Switch On LIN Bus
U1550 is an OBD-II diagnostic trouble code meaning: Body Control Module Lost Communication With Driver Seat Heating and Cooling Switch On LIN Bus. Common causes: open or short circuit in the lin bus circuit, heated seat switch malfunction. Estimated repair cost: $17–56.
Symptoms
- Heated driver's seat does not work
- Heated seat indicator does not turn on
- Other LIN bus related functions may not work
- A warning light may light up on the dashboard
Causes
- Open or short circuit in the LIN bus circuit
- Heated seat switch malfunction
- Body Module (BCM) Problems
- Poor contact in connectors
- Wiring harness damage
How to Fix
- Check the continuity of the LIN bus circuit
- Inspect connectors and contacts for corrosion or damage
- Check the operation of the seat heating switch
- Scan the body module for other errors
- If necessary, replace the switch or repair the wiring harness
Related codes
FAQ
What does the U1550 code mean?
U1550 is an OBD-II diagnostic trouble code that indicates: Body Control Module Lost Communication With Driver Seat Heating and Cooling Switch On LIN Bus
What causes a U1550 error code?
The most common causes of U1550 include: Open or short circuit in the LIN bus circuit; Heated seat switch malfunction; Body Module (BCM) Problems; Poor contact in connectors.
How do I fix a U1550 diagnostic trouble code?
To fix U1550: Check the continuity of the LIN bus circuit. Inspect connectors and contacts for corrosion or damage. Check the operation of the seat heating switch. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1550?
Yes, but get it checked soon
How much does it cost to fix U1550?
The estimated repair cost for U1550 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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