U0114moderate severityNetwork
Lost Communication with 4WD Clutch Control Module
on 2000 BMW 540iT E39 4.4L V8 · RWD
What this code means
Cannot communicate with the four-wheel drive clutch engagement module.
Symptoms
- 4WD warning light on
- AWD system inoperative
- Cannot engage 4WD
- Drivetrain vibration
Common causes
- 4WD clutch module failure
- CAN bus wiring
- Fuse blown
- Module connector corrosion
- Module water damage
Diagnostic steps
- Check 4WD module fuse
- Test power and ground
- Check CAN wiring
- Inspect module for water damage
- Try direct communication
Repair notes
Check fuses and inspect for water damage. Module often located under vehicle.
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Other Network codes on this vehicle
CC-ID-181
System Check Failed
CC-ID-207
Central Electronics Failure, Stop Vehicle
U0001
High Speed CAN Communication Bus
U0002
High Speed CAN Communication Bus Performance
U0003
High Speed CAN Communication Bus (+) Open
U0004
High Speed CAN Communication Bus (+) Low
U0005
High Speed CAN Communication Bus (+) High
U0006
High Speed CAN Communication Bus (-) Open
U0007
High Speed CAN Communication Bus (-) Low
U0008
High Speed CAN Communication Bus (-) High