U0551

Invalid Data Received From Impact Classification System Module

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$167–500 (est.)

Symptoms

Airbag light is on
Security error message on display
Inability to activate the passive safety system
False alarms

Causes

Damage to the impact classification module wiring harness
Impact Classification Module (ICSM) malfunction
Corrosion or poor contact in connectors
Software error in the module

How to Fix

Diagnosing Security Trouble Codes
Checking the integrity of the module wiring and contacts
Checking module power and grounding
Replacing the impact classification module if necessary
Repair only from an authorized dealer

Related codes

U0550 B0001 B0020