Error code
OBD2 U0331
OBD2U0331
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Software Incompatibility with Body Control Module 'A'.
Severity
moderateCan usually drive, but may experience issues with vehicle functions controlled by the Body Control Module.
Summary
U0331 indicates software incompatibility with the Body Control Module 'A'. This issue can affect various functions controlled by this module.
Common Causes
- Software update or installation that is not compatible with the body control module
- Faulty programming of the body control module
Fixes
- Reprogramming or updating the body control module software to a compatible version.
FAQ
What is the Body Control Module?
The Body Control Module (BCM) manages various vehicle functions such as door locks, windows, and interior lighting.
How do I know if my BCM software needs updating?
Consult your vehicle's manufacturer or a professional technician to determine the correct software version for your BCM.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- U0300Internal Control Module Software Incompatibility
- U0301Software Incompatibility with ECM/PCM
- U0302Software Incompatibility with Transmission Control Module
- U0303Software Incompatibility with Transfer Case Control Module
- U0304Software Incompatibility with Gear Shift Control Module
- U0305Software Incompatibility with Cruise Control Module
- U0306Software Incompatibility with Fuel Injector Control Module
- U0307Software Incompatibility with Glow Plug Control Module
- U0308Software Incompatibility with Throttle Actuator Control Module
- U0309Software Incompatibility with Alternative Fuel Control Module
- U0310Software Incompatibility with Fuel Pump Control Module
- U0311Software Incompatibility with Drive Motor Control Module