OBD-II code · Network
U012C Lost Communication With Active Vibration Control Module
ECU lost CAN communication with active vibration control module (used in some hybrid drivetrains to dampen vibrations).
Is it safe to drive with U012C?
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
- Best left to a mechanic
- Typical labour
- 1–5 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Active Vibration Module, Can Bus
Related codes
- U0129Lost Communication with Brake System Control Module
- U012ALost Communication With Chassis Control Module A
- U012BLost Communication With Chassis Control Module B
- U012DLost Communication With Generator A Control Module
- U012ELost Communication With Camshaft Position Control Module
- U012FLost Communication With Generator B Control Module
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.