Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2006 Lexus IS 250 AWDFACTORY OEM SERVICE PROCEDURE
Engine Performance DTCS
ENGINE PERFORMANCE DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| DTC P0010, P0020 | DTC P0010: Camshaft Position "A" Actuator Circuit (Bank 1); DTC P0020: Camshaft Position "A" Actuator Circuit (Bank 2) |
| DTC P0011, P0012, P0021, P0022 | DTC P0011: Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1); DTC P0012: Camshaft Position "A" - Timing Over-Retarded (Bank 1); DTC P0021: Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 2); DTC P0022: Camshaft Position "A" - Timing Over-Retarded (Bank 2) |
| DTC P0013, P0023 | DTC P0013: Camshaft Position "B" Actuator Circuit / Open (Bank 1); DTC P0023: Camshaft Position "B" Actuator Circuit / Open (Bank 2) |
| DTC P0014, P0015, P0024, P0025 | DTC P0014: Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank 1); DTC P0015: Camshaft Position "B" - Timing Over-Retarded (Bank 1); DTC P0024: Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank 2); DTC P0025: Camshaft Position "B" - Timing Over-Retarded (Bank 2) |
| DTC P0016, P0017, P0018, P0019 | DTC P0016: Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A); DTC P0017: Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor B); DTC P0018: Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor A); DTC P0019: Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor B) |
| DTC P0031, P0032, P0051, P0052 | DTC P0031: Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1); DTC P0032: Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1); DTC P0051: Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 2 Sensor 1); DTC P0052: Oxygen (A/F) Sensor Heater Control Circuit High (Bank 2 Sensor 1) |
| DTC P0037, P0038, P0057, P0058, P0141, P0161 | DTC P0037: Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2); DTC P0038: Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2); DTC P0057: Oxygen Sensor Heater Control Circuit Low (Bank 2 Sensor 2); DTC P0058: Oxygen Sensor Heater Control Circuit High (Bank 2 Sensor 2); DTC P0141: Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2); DTC P0161: Oxygen Sensor Heater Circuit Malfunction (Bank 2 Sensor 2) |
| DTC P0087 | DTC P0087: Fuel Rail / System Pressure - Too Low |
| DTC P0088 | DTC P0088: Fuel Rail / System Pressure - Too High |
| DTC P0100, P0102, P0103 | DTC P0100: Mass or Volume Air Flow Circuit; DTC P0102: Mass or Volume Air Flow Circuit Low Input; DTC P0103: Mass or Volume Air Flow Circuit High Input |
| DTC P0101 | DTC P0101: Mass Air Flow Circuit Range / Performance Problem |
| DTC P0110, P0112, P0113 | DTC P0110: Intake Air Temperature Circuit Malfunction; DTC P0112: Intake Air Temperature Circuit Low Input; DTC P0113: Intake Air Temperature Circuit High Input |
| DTC P0111 | DTC P0111: Intake Air Temperature Sensor Gradient Too High |
| DTC P0115, P0117, P0118 | DTC P0115: Engine Coolant Temperature Circuit Malfunction; DTC P0117: Engine Coolant Temperature Circuit Low Input; DTC P0118: Engine Coolant Temperature Circuit High Input |
| DTC P0116 | DTC P0116: Engine Coolant Temperature Circuit Range / Performance Problem |
| DTC P0120, P0122, P0123, P0220, P0222, P0223, P2135 | DTC P0120: Throttle Pedal Position Sensor / Switch "A" Circuit Malfunction; DTC P0122: Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input; DTC P0123: Throttle / Pedal Position Sensor / Switch "A" Circuit High Input; DTC P0220: Throttle / Pedal Position Sensor / Switch "B" Circuit; DTC P0222: Throttle / Pedal Position Sensor / Switch "B" Circuit Low Input; DTC P0223: Throttle / Pedal Position Sensor / Switch "B" Circuit High Input; DTC P2135: Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage Correlation |
| DTC P0121 | DTC P0121: Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem |
| DTC P0125 | DTC P0125: Insufficient Coolant Temperature for Closed Loop Fuel Control |
| DTC P0128 | DTC P0128: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) |
| DTC P0136, P013738, P0156, P0157, P0158 | DTC P0136: Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2); DTC P0137: Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2); DTC P0138: Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2); DTC P0156: Oxygen Sensor Circuit Malfunction (Bank 2 Sensor 2); DTC P0157: Oxygen Sensor Circuit Low Voltage (Bank 2 Sensor 2); DTC P0158: Oxygen Sensor Circuit High Voltage (Bank 2 Sensor 2) |
| DTC P0171, P0172, P0174, P0175 | DTC P0171: System Too Lean (Bank 1); DTC P0172: System Too Rich (Bank 1); DTC P0174: System Too Lean (Bank 2); DTC P0175: System Too Rich (Bank 2) |
| DTC P0190, P0192, P0193 | DTC P0190: Fuel Rail Pressure Sensor Circuit; DTC P0192: Fuel Rail Pressure Sensor Circuit Low Input; DTC P0193: Fuel Rail Pressure Sensor Circuit High Input |
| DTC P0200, P0201, P0202, P0202, P0204, P0205, P0206, P12FF | DTC P0200: Injector Circuit / Open; DTC P0201: Injector Circuit / Open - (Cylinder 1); DTC P0202: Injector Circuit / Open - (Cylinder 2); DTC P0203: Injector Circuit / Open - (Cylinder 3); DTC P0204: Injector Circuit / Open - (Cylinder 4); DTC P0205: Injector Circuit / Open - (Cylinder 5); DTC P0206: Injector Circuit / Open - (Cylinder 6); DTC P12FF: Electric Driver Unit |
| DTC P0230 | DTC P0230: Fuel Pump Primary Circuit |
| DTC P0300, P0301, P0302, P0303, P0304, P0305, P0306 | DTC P0300: Random / Multiple Cylinder Misfire Detected; DTC P0301: Cylinder 1 Misfire Detected; DTC P0302: Cylinder 2 Misfire Detected; DTC P0303: Cylinder 3 Misfire Detected; DTC P0304: Cylinder 4 Misfire Detected; DTC P0305: Cylinder 5 Misfire Detected; DTC P0306: Cylinder 6 Misfire Detected |
| DTC P0327, P0328, P0332, P0333 | DTC P0327: Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor); DTC P0328: Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor); DTC P0332: Knock Sensor 2 Circuit Low Input (Bank 2); DTC P0333: Knock Sensor 2 Circuit High Input (Bank 2) |
| DTC P0335, P0339 | DTC P0335: Crankshaft Position Sensor "A" Circuit; DTC P0339: Crankshaft Position Sensor "A" Circuit Intermittent |
| DTC P0340, P0342, P0343, P0345, P0347, P0348 | DTC P0340: Camshaft Position Sensor Circuit Malfunction; DTC P0342: Camshaft Position Sensor "A" Circuit Low Input (Bank 1 or Single Sensor); DTC P0343: Camshaft Position Sensor "A" Circuit High Input (Bank 1 or Single Sensor); DTC P0345: Camshaft Position Sensor "A" Circuit (Bank 2); DTC P0347: Camshaft Position Sensor "A" Circuit Low Input (Bank 2); DTC P0348: Camshaft Position Sensor "A" Circuit High Input (Bank 2) |
| DTC P0351, P0352, P0353, P0354, P0355, P0356 | DTC P0351: Ignition Coil "A" Primary / Secondary Circuit; DTC P0352: Ignition Coil "B" Primary / Secondary Circuit; DTC P0353: Ignition Coil "C" Primary / Secondary Circuit; DTC P0354 Ignition Coil "D" Primary / Secondary Circuit; DTC P0355: Ignition Coil "E" Primary / Secondary Circuit; DTC P0356: Ignition Coil "F" Primary / Secondary Circuit |
| DTC P0365, P0367, P0368, P03, P0390, P0392, P0393 | DTC P0365: Camshaft Position Sensor "B" Circuit (Bank 1); DTC P0367: Camshaft Position Sensor "B" Circuit Low Input (Bank 1); DTC P0368: Camshaft Position Sensor "B" Circuit High Input (Bank 1); DTC P0390: Camshaft Position Sensor "B" Circuit (Bank 2); DTC P0392: Camshaft Position Sensor "B" Circuit Low Input (Bank 2); DTC P0393: Camshaft Position Sensor "B" Circuit High Input (Bank 2) |
| DTC P04203, P0420, P0330 | DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1); DTC P0430: Catalyst System Efficiency Below Threshold (Bank 2) |
| DTC P043E, P043F | DTC P043E: Evaporative Emission System Reference Orifice Clog Up; DTC P043F: Evaporative Emission System Reference Orifice High Flow |
| DTC P0441 | DTC P0441: Evaporative Emission Control System Incorrect Purge Flow |
| DTC P0450, P0451, P0452, P0453 | DTC P0450: Evaporative Emission Control System Pressure Sensor / Switch; DTC P0451: Evaporative Emission Control System Pressure Sensor Range / Performance; DTC P0452: Evaporative Emission Control System Pressure Sensor / Switch Low Input; DTC P0453: Evaporative Emission Control System Pressure Sensor / Switch High Input |
| DTC P0455, P0456 | DTC P0455: Evaporative Emission Control System Leak Detected (Gross Leak); DTC P0456: Evaporative Emission Control System Leak Detected (Very Small Leak) |
| DTC P0500 | DTC P0500: Vehicle Speed Sensor "A" |
| DTC P0504, P0724 | DTC P0504: Brake Switch "A" / "B" Correlation; DTC P0724: Brake Switch "B" Circuit High |
| DTC P0505 | DTC P0505: Idle Control System Malfunction |
| DTC P0560 | DTC P0560: System Voltage |
| DTC P0604, P0606, P0607, P0657 | DTC P0604: Internal Control Module Random Access Memory (RAM) Error; DTC P0606: ECM / PCM Processor; DTC P0607: Control Module Performance; DTC P0657: Actuator Supply Voltage Circuit / Open |
| DTC P0617 | DTC P0617: Starter Relay Circuit High |
| DTC P0630 | DTC P0630: VIN not Programmed or Mismatch - ECM / PCM |
| DTC P1235 | DTC P1235: High Pressure Fuel Pump Circuit |
| DTC P2004, P2006 | DTC P2004: Intake Manifold Runner Control Stuck Open (Bank 1); DTC P2006: Intake Manifold Runner Control Stuck Closed (Bank 1) |
| DTC P2009, P2010 | DTC P2009: Intake Manifold Runner Control Circuit Low (Bank 1); DTC P2010: Intake Manifold Runner Control Circuit High (Bank 1) |
| DTC P2014, P2016, P2017 | DTC P2014: Intake Manifold Runner Position Sensor / Switch Circuit (Bank 1); DTC P2016: Intake Manifold Runner Position Sensor / Switch Circuit Low (Bank 1); DTC P2017: Intake Manifold Runner Position Sensor / Switch Circuit High (Bank 1) |
| DTC P2102, P2103 | DTC P2102: Throttle Actuator Control Motor Circuit Low; DTC P2103: Throttle Actuator Control Motor Circuit High |
| DTC P2111, P2112 | DTC P2111: Throttle Actuator Control System - Stuck Open; DTC P2112: Throttle Actuator Control System - Stuck Closed |
| DTC P2118 | DTC P2118: Throttle Actuator Control Motor Current Range / Performance |
| DTC P2119 | DTC P2119: Throttle Actuator Control Throttle Body Range / Performance |
| DTC P2120, P2122, P2123, P2125, P2127, P2128, P2138 | DTC P2120: Throttle / Pedal Position Sensor / Switch "D" Circuit; DTC P2122: Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input; DTC P2123: Throttle / Pedal Position Sensor / Switch "D" Circuit High Input; DTC P2125: Throttle / Pedal Position Sensor / Switch "E" Circuit; DTC P2127: Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input; DTC P2128: Throttle / Pedal Position Sensor / Switch "E" Circuit High Input; DTC P2138: Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation |
| DTC P2121 | DTC P2121: Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance |
| DTC P2195, P2196, P2197, P2198 | DTC P2195: Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1); DTC P2196: Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1); DTC P2197: Oxygen (A/F) Sensor Signal Stuck Lean (Bank 2 Sensor 1); DTC P2198: Oxygen (A/F) Sensor Signal Stuck Rich (Bank 2 Sensor 1) |
| DTC P22383, P2238, P2139, P2141, P2142, P2152, P2153, P2155, P2156 | DTC P2238: Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1); DTC P2239: Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1); DTC P2241: Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 2 Sensor 1); DTC P2242: Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 2 Sensor 1); DTC P2252: Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1); DTC P2253: Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1); DTC P2255: Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 2 Sensor 1); DTC P2256: Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 2 Sensor 1) |
| DTC P2401, P2402 | DTC P2401: Evaporative Emission System Leak Detection Pump Control Circuit Low; DTC P2402: Evaporative Emission System Leak Detection Pump Control Circuit High |
| DTC P2419, P2420 | DTC P2419: Evaporative Emission System Switching Valve Control Circuit Low; DTC P2420: Evaporative Emission System Switching Valve Control Circuit High |
| DTC P2610 | DTC P2610: ECM / PCM Internal Engine Off Timer Performance |
| DTC P2A00, P2A03 | DTC P2A00: A/F Sensor Circuit Slow Response (Bank 1 Sensor 1); DTC P2A03: A/F Sensor Circuit Slow Response (Bank 2 Sensor 1) |
| DTC U0101 | DTC U0101: Lost Communication with TCM |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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