U048B

Invalid Data Received From Headlamp Leveling Control Module B

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Error message on the dashboard
Disabling automatic headlight leveling
Incorrect operation of the lighting system
Headlights flashing when driving

Causes

Malfunction of headlight adjustment module B
Open or short circuit in wiring
Problems with the CAN bus
Contact corrosion
Software error in the control unit

How to Fix

Check the integrity of the wiring to the headlight adjustment module
Diagnose headlight adjustment module B
Check CAN bus connections
Update control unit software
Replace headlight adjustment module B if necessary

Related codes

U048A U048C U048D