OBD-II code · Network
U042C Invalid Data Received From Chassis Control Module B
A receiving module detected implausible data from chassis control module B. Vehicle dynamics, ride-height or damper command values fail plausibility checks and are rejected.
Is it safe to drive with U042C?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyModule internal fault or sensor input drift
- PossibleSoftware version mismatch after replacement
- Less likelyGateway module routing CAN messages incorrectly
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
- 0.5–4 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Chassis Module B
Related codes
- U042BInvalid Data Received From Chassis Control Module A
- U0429Invalid Data Received from Steering Wheel Angle Sensor
- U042AInvalid Data Received From V2X Module
- U042DInvalid Data Received From Active Vibration Control Module
- U042EInvalid Data Received From Generator A Control Module
- U042FInvalid Data Received From Camshaft Position Control Module
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.