U0423

Invalid Data Received From Instrument Panel Cluster Control Module

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Incorrect display of information on the dashboard
Check Engine Light Is On
Malfunctions of the speedometer or tachometer
Lack of response to pressing buttons on the instrument panel

Causes

CAN bus problems
Instrument panel malfunction
Damage to the wiring between the instrument panel and the ECM
Software error in one of the modules

How to Fix

Check CAN bus connections
Scan all modules for errors
Check wiring continuity between instrument panel and ECM
Update module software
Replace the instrument panel if necessary

Related codes

U0422 U0424 U0121