Error code
OBD2 U0209
OBD2U0209
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Lost Communication With 'Seat Control Module B'.
Severity
moderateCan continue driving, but may experience issues with seat adjustments.
Summary
U0209 indicates lost communication with the seat control module B, which is part of the data bus system responsible for seat adjustment functions.
Common Causes
- Faulty or damaged wiring harness connecting to the seat control module
- Seat control module failure
Fixes
FAQ
What does U0209 mean?
U0209 indicates a loss of communication with the seat control module B, which is part of the data bus system.
How can I fix U0209?
The issue may be resolved by repairing or replacing faulty wiring harnesses or the seat control module itself. Professional diagnosis and repair are recommended.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- U0200Lost Communication With 'Door Control Module B'
- U0201Lost Communication With 'Door Control Module C'
- U0202Lost Communication With 'Door Control Module D'
- U0203Lost Communication With 'Door Control Module E'
- U0204Lost Communication With 'Door Control Module F'
- U0205Lost Communication With 'Door Control Module G'
- U0206Lost Communication With Folding Top Control Module
- U0207Lost Communication With Moveable Roof Control Module
- U0208Lost Communication With 'Seat Control Module A'
- U0210Lost Communication With 'Seat Control Module C'
- U0211Lost Communication With 'Seat Control Module D'
- U0212Lost Communication With Steering Column Control Module