Error code
OBD2 U0431
OBD2U0431
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Invalid Data Received From Body Control Module 'A'.
Severity
moderateYou can usually drive with this code, but it may cause issues like malfunctioning electrical components.
Summary
U0431 indicates that the car's computer is receiving invalid data from the Body Control Module A, which could affect various electrical systems in your vehicle.
Common Causes
- Faulty communication between the body control module and other modules
- Corrupted or damaged wiring harness
Fixes
FAQ
What should I do if my car has the U0431 trouble code?
You might need to check for communication faults between modules or inspect wiring harness damage. Consulting a professional mechanic is recommended.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- U0400Invalid Data Received
- U0401Invalid Data Received From ECM/PCM
- U0402Invalid Data Received From Transmission Control Module
- U0403Invalid Data Received From Transfer Case Control Module
- U0404Invalid Data Received From Gear Shift Control Module
- U0405Invalid Data Received From Cruise Control Module
- U0406Invalid Data Received From Fuel Injector Control Module
- U0407Invalid Data Received From Glow Plug Control Module
- U0408Invalid Data Received From Throttle Actuator Control Module
- U0409Invalid Data Received From Alternative Fuel Control Module
- U0410Invalid Data Received From Fuel Pump Control Module
- U0411Invalid Data Received From Drive Motor Control Module