OBD-II code · Network
U048B Invalid Data Received From Headlamp Leveling Control Module B
A receiving module detected implausible data from headlamp leveling control module B. Pitch angle or actuator position values fail plausibility checks and are rejected; auto-leveling reverts to fixed position.
Is it safe to drive with U048B?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyModule internal fault or sensor input drift
- PossibleSoftware version mismatch after replacement
- 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
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–2 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Headlamp Leveling Module B
Related codes
- U0482Invalid Data Received From Headlamp Leveling Control Module A
- U0488Invalid Data Received From Digital Disc Player/Changer Module A
- U0489Invalid Data Received From Digital Disc Player/Changer Module B
- U048AInvalid Data Received From Digital Disc Player/Changer Module C
- U0491Invalid Data Received From Digital Disc Player/Changer Module D
- U0492Invalid Data Received From Television
- U0493Invalid Data Received From Personal Computer
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.