Error code
OBD2 U0146
OBD2U0146
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Lost Communication With Gateway 'A'.
Severity
highCan drive but may experience reduced functionality and warning lights.
Summary
U0146 indicates lost communication with Gateway A, which is part of the data bus system in your car.
Common Causes
- Faulty or damaged gateway module
- Corroded or loose connectors at the gateway module
Fixes
FAQ
How can I diagnose U0146?
Consult a professional mechanic or use diagnostic tools like Torque Pro to check the gateway module and connectors.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- U0100Lost Communication With ECM/PCM A
- U0101Lost Communication with TCM
- U0102Lost Communication with Transfer Case Control Module
- U0103Lost Communication With Gear Shift Module
- U0104Lost Communication With Cruise Control Module
- U0105Lost Communication With Fuel Injector Control Module
- U0106Lost Communication With Glow Plug Control Module
- U0107Lost Communication With Throttle Actuator Control Module
- U0108Lost Communication With Alternative Fuel Control Module
- U0109Lost Communication With Fuel Pump Control Module
- U0110Lost Communication With Drive Motor Control Module
- U0111Lost Communication With Battery Energy Control Module 'A'