OBD-II code · Network
U0114 Lost Communication with 4WD Clutch Control Module
The 4WD Clutch Control Module has stopped transmitting on the vehicle data bus, so other control units no longer receive its messages. Electronically controlled four-wheel-drive engagement is unavailable. Typical causes are loss of power or ground at the module, an open or shorted CAN/LIN bus wire, a connector fault, or an internal module failure.
Is it safe to drive with U0114?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyAWD clutch module unpowered
- PossibleCAN wiring to AWD clutch module broken
- 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
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–6 h
- Emissions test
- Usually unaffected
- Parts involved
- Awd Clutch Control Module, Can Bus Wiring
Related codes
- U0111Lost Communication with Battery Energy Control Module
- U0112Lost Communication with Battery Energy Control Module "B"
- U0113Lost Communication with Battery Charger A Control Module
- U0115Lost Communication with ECM/PCM "B"
- U0116Lost Communication with Steering Effort Control Module
- U0117Lost Communication with Drive Motor Control Module 2
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.