Network
generic / SAE
U02BF
Lost Communication With Interior Lighting Control Module B
The vehicle bus reports loss of communication with interior lighting control module B. Ambient lighting zones, reading lamps and door courtesy lights driven by this node fall back to a default state.
SystemNetwork
Typegeneric / SAE
GroupU0
Range / number2 / BF
Possible causes
- Bus wiring open or shorted high
- Module without power or ground medium
- Module failed medium
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: easy
- DIY: possible
- Estimated cost: 50–500 €
- Estimated time: 0.5–2 h
- Component: interior lighting module b
- Component: vehicle bus wiring
- drive cycle required
Sources
References
sae:J2012