U0426

Invalid Data Received From Vehicle Immobilizer Control Module

Severity

🔴 High

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Engine won't start
Check engine light is on
Problems with key recognition
Engine stalls after starting

Causes

Immobilizer module malfunction
Wiring harness damage
Communication bus problems
Malfunction of the electronic control unit
Problems with the chip in the ignition key

How to Fix

Check the condition of the wiring harness to the immobilizer
Scan the system for other trouble codes
Check the functionality of the ignition key
Test the immobilizer module
Repair only from an authorized dealer

Related codes

U0425 U0427 U0428