Toyota fault codes
12,945 codes · 876 vehicle records · 1,973 ECU records · 43,462 live-data parameters
Codes 12,945
| Code | Description | Brands | System |
|---|---|---|---|
| U0294 | Lost Communication With Powertrain Control Monitor Module | 23 | Network |
| U0295 | Lost Communication With AC/AC Converter Control Module | 21 | Network |
| U0296 | Lost Communication With AC/DC Converter Control Module A | 21 | Network |
| U0297 | Lost communication with AC/DC converter control module B | 19 | Network |
| U0298 | Lost Communication With DC/DC Converter Control Module A | 34 | Network |
| U0299 | Lost Communication With DC/DC Converter Control Module B | 25 | Network |
| U029A | Lost Communication With Hybrid/EV Battery Pack Sensor Module | 26 | Network |
| U029B | Lost communication with drive motor control module 'C' | 19 | Network |
| U029C | Lost communication with drive motor control module 'D' | 19 | Network |
| U029D | Lost Communication With NOx Sensor A | 29 | Network |
| U029E | Lost Communication With NOx Sensor B | 28 | Network |
| U029F | Lost communication with evaporative emission system leak detection control module | 6 | Network |
| U02A0 | Invalid data received from Hybrid/EV battery interface control module 'D' | 5 | Network |
| U02A1 | Lost Communication With NOx Sensor C | 12 | Network |
| U02A2 | Lost Communication With Reductant Quality Module | 13 | Network |
| U02A3 | Lost Communication With Particulate Matter Sensor | 19 | Network |
| U02A4 | Lost communication with NH3 sensor | 4 | Network |
| U02A5 | Lost communication with reductant heater control module | 6 | Network |
| U02A6 | Lost communication with safety integrated control module | 5 | Network |
| U02A7 | Lost communication with engine sound control 1 | 3 | Network |
| U02A8 | Lost communication with engine sound control 2 | 3 | Network |
| U02A9 | Lost Communication With Charge Air Cooler Coolant Pump A | 10 | Network |
| U02AA | Lost communication with engine disconnect clutch | 3 | Network |
| U02AB | Lost communication with vehicle power control module | 5 | Network |
| U02AC | Lost communication with turbocharger/supercharger boost control 'A' | 3 | Network |
| U02AD | Lost communication with turbocharger/supercharger boost control 'B' | 3 | Network |
| U02AE | Lost Communications With Hybrid/EV Battery Coolant Pump | 10 | Network |
| U0300 | Internal Control Module Software Incompatibility | 36 | Network |
| U0301 | Software incompatibility with ECM/PCM | 25 | Network |
| U0302 | Software Incompatibility With Transmission Control Module | 26 | Network |
| U0303 | Software Incompatibility With Transfer Case Control Module | 23 | Network |
| U0304 | Software Incompatibility With Gear Shift Control Module A | 25 | Network |
| U0305 | Software Incompatibility With Cruise Control Module | 28 | Network |
| U0306 | Software Incompatibility With Fuel Injector Control Module | 23 | Network |
| U0307 | Software Incompatibility With Glow Plug Control Module 1 | 23 | Network |
| U0308 | Software Incompatibility With Throttle Actuator Control Module | 25 | Network |
| U0309 | Software Incompatibility With Alternative Fuel Control Module | 23 | Network |
| U030A | Software incompatibility with evaporative emission system leak detection control module | 4 | Network |
| U030B | Software incompatibility with glow plug control module 2 | 5 | Network |
| U030C | Software incompatibility with reductant quality module | 4 | Network |
| U0310 | Software Incompatibility With Fuel Pump Control Module | 24 | Network |
| U0311 | Software Incompatibility With Drive Motor Control Module | 26 | Network |
| U0312 | Software Incompatibility With Battery Energy Control Module A | 26 | Network |
| U0313 | Software incompatibility with battery energy control module B | 22 | Network |
| U0314 | Software Incompatibility With Four-Wheel Drive Clutch Control Module | 27 | Network |
| U0315 | Software Incompatibility With Anti-Lock Brake System (ABS) Control Module | 24 | Network |
| U0316 | Software incompatibility with vehicle dynamics control module | 23 | Network |
| U0317 | Software Incompatibility With Park Brake Control Module | 25 | Network |
| U0318 | Software Incompatibility With Brake System Control Module A | 25 | Network |
| U0319 | Software incompatibility with steering effort control module | 23 | Network |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.