U0431
Invalid Data Received From Body Control Module A
U0431 is an OBD-II diagnostic trouble code meaning: Invalid Data Received From Body Control Module A. Common causes: body module (bcm-a) malfunction, wiring harness damage. Estimated repair cost: $56–278.
Symptoms
- Incorrect operation of body electrical equipment
- Check Engine Light Is On
- Problems with central locking
- Lighting malfunctions
- Errors in other vehicle systems
Causes
- Body Module (BCM-A) Malfunction
- Wiring harness damage
- Oxidation or poor contact in connectors
- Module power problems
- Software error in the module
How to Fix
- Check body module connections and connectors
- Check the integrity of the wiring harness
- Check power supply and grounding of the module
- Scan the module for other errors
- If necessary, replace or reflash the body module
Related codes
Error U0431 by Vehicle Brand
FAQ
What does the U0431 code mean?
U0431 is an OBD-II diagnostic trouble code that indicates: Invalid Data Received From Body Control Module A
What causes a U0431 error code?
The most common causes of U0431 include: Body Module (BCM-A) Malfunction; Wiring harness damage; Oxidation or poor contact in connectors; Module power problems.
How do I fix a U0431 diagnostic trouble code?
To fix U0431: Check body module connections and connectors. Check the integrity of the wiring harness. Check power supply and grounding of the module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0431?
Yes, but get it checked soon
How much does it cost to fix U0431?
The estimated repair cost for U0431 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat