U0273

Lost Communication With Lighting Driver Control Module A

Severity

⚠️ Medium

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$33–167 (est.)

Symptoms

Headlights or side lights do not work
Flashing or spontaneous turning on/off of the light
Error message on the dashboard
Non-adjustable headlight brightness
No response to light switch

Causes

Open or short circuit in the module power supply circuit
Damage to the wiring harness to the module
Lighting control module malfunction
Poor contact in connectors
Problems with the CAN bus

How to Fix

Check fuses associated with the lighting system
Inspect the wiring harness and connectors for damage.
Check power and ground on the control module
Scan other modules for CAN bus errors
If necessary, replace the lighting control module

Related codes

U0272 U0274 U0253