U0234

Lost Communication With Convenience Recall Module

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$33–167 (est.)

Symptoms

Power windows don't work
Problems with central locking
Check Engine Light Is On
Other comfort systems do not work

Causes

Open or short circuit in the CAN bus circuit
Convenience module malfunction
Module power problems
Contact corrosion
Software error

How to Fix

Check convenience module fuses
Diagnose the integrity of the CAN bus
Check the power supply and ground of the module
Scan the module for errors
Replace the convenience module if necessary

Related codes

U0235 U0236 U0233