OBD-II code · Network
U0276 Lost Communication With Lighting Driver Control Module D
The vehicle bus reports loss of communication with lighting driver control module D. LED matrix segments and adaptive headlamp functions driven by this node may default to a fallback beam pattern.
Is it safe to drive with U0276?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyBus wiring open or shorted
- PossibleModule without power or ground
- PossibleModule failed
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
- 0.5–3 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Lighting Driver Module D, Vehicle Bus Wiring
Related codes
- U0273Lost Communication With Lighting Driver Control Module A
- U0274Lost Communication With Lighting Driver Control Module B
- U0275Lost Communication With Lighting Driver Control Module C
- U0277Lost Communication With Seat Control Module K
- U0278Lost Communication With Seat Control Module L
- U0279Lost Communication With Haptic Control Module
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.