Network
generic / SAE
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.
SystemNetwork
Typegeneric / SAE
GroupU0
Range / number1 / 14
Possible causes
- AWD clutch module unpowered high
- CAN wiring to AWD clutch module broken medium
- Gateway module routing CAN messages incorrectly low
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
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 100–1800 €
- Estimated time: 1–6 h
- Component: awd clutch control module
- Component: can bus wiring
- MIL / check engine light
Sources
References
sae:J2012