U0252

Lost Communication With Lighting Control Module - Rear B

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

Rear lights do not work (brake lights, side lights, turn signals)
Error message on the dashboard
Flashing or unstable rear lights
No response to turning on the light

Causes

Open or short circuit in the module power supply circuit
Damage to the wiring harness to the lighting module
Rear lighting control module malfunction
Connector problems or contact corrosion
Failures in ECU software

How to Fix

Check fuses associated with the lighting system
Inspect the wiring harness and connectors for damage.
Check power and ground on the lighting module
Scan the module for additional errors
If necessary, replace the rear light control module

Related codes

U0251 U0253 U0254