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 |
|---|---|---|---|
| P2184 | Engine Coolant Temperature Sensor 2 Circuit Low | 33 | Powertrain |
| P2185 | Engine Coolant Temperature Sensor 2 Circuit High | 33 | Powertrain |
| P2186 | Engine coolant temperature sensor 2 circuit intermittent/erratic | 25 | Powertrain |
| P2187 | Fuel system too lean in idle working condition | 36 | Powertrain |
| P2188 | Fuel system too rich in idle working condition | 35 | Powertrain |
| P2189 | System too lean at idle bank 2 | 31 | Powertrain |
| P218A | Throttle actuator 'B' control system - idle position not learned | 14 | Powertrain |
| P218B | Throttle/fuel inhibit 'B' circuit | 7 | Powertrain |
| P218C | Throttle/fuel inhibit 'B' circuit range/performance | 5 | Powertrain |
| P218D | Throttle/fuel inhibit 'B' circuit low | 5 | Powertrain |
| P218E | Throttle/fuel inhibit 'B' circuit high | 5 | Powertrain |
| P218F | Reductant no flow detected | 7 | Powertrain |
| P2190 | System too rich at idle bank 2 | 31 | Powertrain |
| P2191 | System Too Lean at Higher Load (Bank 1) | 31 | Powertrain |
| P2192 | System Too Rich at Higher Load (Bank 1) | 31 | Powertrain |
| P2193 | System too lean at higher load bank 2 | 28 | Powertrain |
| P2194 | System Too Rich at Higher Load (Bank 2) | 30 | Powertrain |
| P2195 | The upstream oxygen is too lean when accelerating and enriching it. | 42 | Powertrain |
| P2196 | O2 Sensor Signal Biased/Stuck Rich (Bank 1 Sensor 1) | 42 | Powertrain |
| P2197 | O2 Sensor Signal Biased/Stuck Lean (Bank 2 Sensor 1) | 38 | Powertrain |
| P2198 | Oxygen (Lambda) sensor B2 S1: signal too high (rich) | 35 | Powertrain |
| P2199 | Intake Air Temperature Sensor 1/2 Correlation | 32 | Powertrain |
| P219A | Bank 1 Air-Fuel Ratio Imbalance | 17 | Powertrain |
| P219B | Bank 2 Air-Fuel Ratio Imbalance | 17 | Powertrain |
| P219C | Cylinder 1 air-fuel ratio imbalance | 19 | Powertrain |
| P219D | Cylinder 2 air-fuel ratio imbalance | 19 | Powertrain |
| P219E | Cylinder 3 air-fuel ratio imbalance | 19 | Powertrain |
| P219F | Cylinder 4 air-fuel ratio imbalance | 19 | Powertrain |
| P21A0 | Cylinder 5 air-fuel ratio imbalance | 18 | Powertrain |
| P21A1 | Cylinder 6 air-fuel ratio imbalance | 18 | Powertrain |
| P21A2 | Cylinder 7 air-fuel ratio imbalance | 14 | Powertrain |
| P21A3 | Cylinder 8 air-fuel ratio imbalance | 14 | Powertrain |
| P21A4 | Cylinder 9 air-fuel ratio imbalance | 6 | Powertrain |
| P21A5 | Cylinder 10 air-fuel ratio imbalance | 6 | Powertrain |
| P21A6 | Cylinder 11 air-fuel ratio imbalance | 6 | Powertrain |
| P21A7 | Cylinder 12 air-fuel ratio imbalance | 6 | Powertrain |
| P21A8 | Reductant level sensor 'B' circuit | 5 | Powertrain |
| P21A9 | Reductant level sensor 'B' circuit range/performance | 11 | Powertrain |
| P21AA | Reductant level sensor 'B' circuit low | 12 | Powertrain |
| P21AB | Reductant level sensor 'B' circuit high | 12 | Powertrain |
| P21AC | Reductant level sensor 'B' circuit intermittent/erratic | 5 | Powertrain |
| P21AD | Reductant level sensor 'C' circuit | 5 | Powertrain |
| P21AE | Reductant level sensor 'C' circuit range/performance | 5 | Powertrain |
| P21AF | Reductant level sensor 'C' circuit low | 11 | Powertrain |
| P21B0 | Reductant level sensor 'C' circuit high | 11 | Powertrain |
| P21B1 | Reductant level sensor 'C' circuit intermittent/erratic | 5 | Powertrain |
| P21B2 | Excessive time to enter closed loop NOx absorber control | 6 | Powertrain |
| P21B3 | Closed loop NOx absorber control at limit - too high | 5 | Powertrain |
| P21B4 | NOx absorber - overtemperature bank 1 | 5 | Powertrain |
| P21B5 | NOx absorber - overtemperature bank 2 | 5 | Powertrain |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.