OBD-II code · Network
U022F Lost Communication With Object Detection Maintenance Control Module B
ECU lost communication with object detection maintenance control module B (camera/radar/lidar self-cleaning, alignment).
Is it safe to drive with U022F?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
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
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–6 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Obj Detect Module B, Can Bus
Related codes
- U022ELost Communication With Object Detection Maintenance Control Module A
- U0228Lost Communication With Door Window Motor G
- U0229Lost Communication With Heated Steering Wheel Module
- U0230Lost Communication With Rear Gate Module
- U0231Lost Communication with Rain Sensor Module
- U0232Lost Communication with Left Side Obstacle Detection Control Module
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.