PZEV Engine
ENGINE PERFORMANCE DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION (PZEV)
| DTC | Description |
|---|---|
| P0031 | Oxygen (A/F) Sensor Heater Circuit Low (Bank No. 1 Sensor No. 1) |
| P0032 | Oxygen (A/F) Sensor Heater Circuit High (Bank No. 1 Sensor No. 1) |
| P0037 | Oxygen Sensor Heater Control Circuit Low (Bank No. 1 Sensor No. 2) |
| P0038 | Oxygen Sensor Heater Control Circuit High (Bank No. 1 Sensor No. 2) |
| P0043 | Oxygen Sensor Heater Control Circuit Low (Bank No. 1 Sensor No. 3) |
| P0044 | Oxygen Sensor Heater Control Circuit High (Bank No. 1 Sensor No. 1) |
| P0136 | Oxygen Sensor Circuit Malfunction (Bank No. 1 Sensor No. 2) |
| P0137 | Oxygen Sensor Circuit Low Voltage (Bank No. 1 Sensor No. 2) |
| P0138 | Oxygen Sensor Circuit High Voltage (Bank No. 1 Sensor No. 2) |
| P0142 | Oxygen Sensor Circuit Malfunction (Bank No. 1 Sensor No. 3) |
| P0143 | Oxygen Sensor Circuit Low Voltage (Bank No. 1 Sensor No. 3) |
| P0144 | Oxygen Sensor Circuit High Voltage (Bank No. 1 Sensor No. 3) |
| P0171 | System Too Lean (Bank No. 1) |
| P0172 | System Too Rich (Bank No. 2) |
| P0325 | Knock Sensor No. 1 Circuit (Bank No. 1 Or Single Sensor) |
| P0327 | Knock Sensor No. 1 Circuit Low Input (Bank No. 1 Or Single Sensor) |
| P0328 | Knock Sensor No. 1 Circuit High Input (Bank No. 1 Or Single Sensor) |
| P0420 | Catalyst System Efficiency Below Threshold (Bank No. 1) |
| P0441 | EVAP Incorrect Purge Flow |
| P0442 | EVAP Leak Detected (Small Leak) |
| P0446 | EVAP Vent Control Circuit |
| P0451 | EVAP Pressure Sensor/Switch Range/Performance |
| P0452 | EVAP Pressure Sensor/Switch Low Input |
| P0453 | EVAP Pressure Sensor/Switch High Input |
| P0456 | EVAP Leak Detected (Very Small Leak) |
| P2004 | Intake Manifold Runner Control Stuck Open (Bank No. 1) |
| P2006 | Intake Manifold Runner Control Stuck Closed (Bank No. 1) |
| P2009 | Intake Manifold Runner Control Circuit Low (Bank No. 1) |
| P2010 | Intake Manifold Runner Control Circuit High (Bank No. 1) |
| P2014 | Intake Manifold Runner Position Sensor/Switch Circuit (Bank No. 1) |
| P2016 | Intake Manifold Runner Position Sensor/Switch Circuit Low (Bank No. 1) |
| P2017 | Intake Manifold Runner Position Sensor/Switch Circuit High (Bank No. 1) |
| P2195 | Oxygen (A/F) Sensor Signal Stuck Lean (Bank No. 1 Sensor No. 1) |
| P2196 | Oxygen (A/F) Sensor Signal Stuck Rich (Bank No. 1 Sensor No. 1) |
| P2237 | Oxygen Sensor Pumping Current Circuit/Open (For A/F Sensor) Bank No. 1 Sensor No. 1 |
| P2238 | Oxygen Sensor Pumping Current Circuit/Low (For A/F Sensor) Bank No. 1 Sensor No. 1 |
| P2239 | Oxygen Sensor Pumping Current Circuit/High (For A/F Sensor) Bank No. 1 Sensor No. 1 |
| P2251 | Oxygen Sensor Reference Ground Circuit/Open (For A/F Sensor) Bank No. 1 Sensor No. 1 |
| P2252 | Oxygen Sensor Reference Ground Circuit Low (For A/F Sensor) Bank No. 1 Sensor No. 1 |
| P2253 | Oxygen Sensor Reference Ground Circuit High (For A/F Sensor) Bank No. 1 Sensor No. 1 |
| P2423 | Toyota HCAC System (Bank No. 1) |
| P2A00 | A/F Sensor Circuit Slow Response (Bank No. 1 Sensor No. 1) |