U0427
Invalid Data Received From Vehicle Security Control Module
U0427 is an OBD-II diagnostic trouble code meaning: Invalid Data Received From Vehicle Security Control Module. Common causes: security module malfunction, wiring harness damage. Estimated repair cost: $56–222.
Symptoms
- Problems starting the engine
- Alarm not working
- Central locking malfunction
- Check engine light is on
- Error message on the dashboard
Causes
- Security module malfunction
- Wiring harness damage
- Poor contact in connectors
- ECU software error
- Short circuit in the circuit
How to Fix
- Check connections and connectors of the safety module
- Scan all ECUs for errors
- Check the integrity of the wiring to the safety module
- Reflash or replace the security module
- Repair only from an authorized dealer
Related codes
Error U0427 by Vehicle Brand
FAQ
What does the U0427 code mean?
U0427 is an OBD-II diagnostic trouble code that indicates: Invalid Data Received From Vehicle Security Control Module
What causes a U0427 error code?
The most common causes of U0427 include: Security module malfunction; Wiring harness damage; Poor contact in connectors; ECU software error.
How do I fix a U0427 diagnostic trouble code?
To fix U0427: Check connections and connectors of the safety module. Scan all ECUs for errors. Check the integrity of the wiring to the safety module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0427?
Do not drive — repair immediately
How much does it cost to fix U0427?
The estimated repair cost for U0427 is $56–222. Actual cost depends on your vehicle, location, and labor rates.
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