U0551
Invalid Data Received From Impact Classification System Module
U0551 is an OBD-II diagnostic trouble code meaning: Invalid Data Received From Impact Classification System Module. Common causes: damage to the impact classification module wiring harness, impact classification module (icsm) malfunction. Estimated repair cost: $167–500.
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
Error U0551 by Vehicle Brand
FAQ
What does the U0551 code mean?
U0551 is an OBD-II diagnostic trouble code that indicates: Invalid Data Received From Impact Classification System Module
What causes a U0551 error code?
The most common causes of U0551 include: 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 do I fix a U0551 diagnostic trouble code?
To fix U0551: Diagnosing Security Trouble Codes. Checking the integrity of the module wiring and contacts. Checking module power and grounding. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0551?
Do not drive — repair immediately
How much does it cost to fix U0551?
The estimated repair cost for U0551 is $167–500. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat