U0181

Lost Communication With Headlamp Leveling Control Module A

Severity

⚠️ Medium

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$17–89 (est.)

Symptoms

Error message on the dashboard
Inability to adjust headlight levels
Headlights only work in one position
Flashing or unstable headlights

Causes

Open or short circuit in the headlight level module circuit
Malfunction of the headlight leveling module
Problems with the CAN bus
Vehicle control unit malfunction
Poor contact in connectors

How to Fix

Check the headlight level module fuse
Inspect the wiring harness for damage
Check headlight level module connectors
Scan the CAN bus for errors
Replace headlight level module if necessary

Related codes

U0180 U0182 U0184