Error code
OBD2 U0306
OBD2U0306
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Software Incompatibility with Fuel Injector Control Module.
Severity
moderateCan drive, but performance issues may occur.
Summary
U0306 indicates software incompatibility involving the fuel injector control module. This issue affects communication between modules.
Common Causes
- Software update or calibration mismatch with the fuel injector control module
- Faulty or outdated firmware
Fixes
- Update software/firmware on the fuel injector control module
FAQ
What does U0306 mean?
U0306 indicates a software incompatibility issue with the fuel injector control module, affecting communication between vehicle modules.
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
- 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
- U0312Software Incompatibility with Battery Energy Control Module A