OBD-II code · Network
U0211 Lost Communication With Seat Control Module D
ECU lost communication with seat control module D (driver seat with memory/heating/ventilation). A communication loss with this module breaks any function relying on its data — diagnostic tools may show 'no response' and dependent modules can fall into limp mode.
Is it safe to drive with U0211?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyModule unpowered
- Less likelyGateway module routing CAN messages incorrectly
- Less likelyCAN terminating resistor (120 Ω) drifted out of spec
Symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–3 h
- Emissions test
- Usually unaffected
- Parts involved
- Seat Module D, Can Bus
Related codes
- U0208Lost Communication With Seat Control Module A
- U0209Lost Communication With Seat Control Module B
- U0210Lost Communication With Seat Control Module C
- U0246Lost Communication With Seat Control Module E
- U0247Lost Communication With Seat Control Module F
- U024BLost Communication With Seat Control Module G
- U024CLost Communication With Seat Control Module H
- U024DLost Communication With Seat Control Module J
- U0277Lost Communication With Seat Control Module K
- U0278Lost Communication With Seat Control Module L
- U020CLost Communication With Wireless Accessory Charging Module A
- U020DLost Communication With Wireless Accessory Charging Module B
- U0212Lost Communication with Steering Column Control Module
- U0213Lost Communication with Mirror Control Module
- U0214Lost Communication with Remote Function Actuation
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.