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.
2014 Lexus RX 350 Base, FWDFACTORY OEM SERVICE PROCEDURE
SFI System
SFI SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC Code | Description |
|---|---|
| P0010 | Camshaft Position "A" Actuator Circuit (Bank 1) |
| P0011 | Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1) |
| P0012 | Camshaft Position "A" - Timing Over-Retarded (Bank 1) |
| P0013 | Camshaft Position "B" Actuator Circuit / Open (Bank 1) |
| P0014 | Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank 1) |
| P0015 | Camshaft Position "B" - Timing Over-Retarded (Bank 1) |
| P0016 | Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A) |
| P0017 | Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor B) |
| P0018 | Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor A) |
| P0019 | Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor B) |
| P0020 | Camshaft Position "A" Actuator Circuit (Bank 2) |
| P0021 | Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 2) |
| P0022 | Camshaft Position "A" - Timing Over-Retarded (Bank 2) |
| P0023 | Camshaft Position "B" Actuator Circuit / Open (Bank 2) |
| P0024 | Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank 2) |
| P0025 | Camshaft Position "B" - Timing Over-Retarded (Bank 2) |
| P0031 | Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1) |
| P0032 | Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1) |
| P0037 | Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2) |
| P0038 | Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2) |
| P0051 | Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 2 Sensor 1) |
| P0052 | Oxygen (A/F) Sensor Heater Control Circuit High (Bank 2 Sensor 1) |
| P0057 | Oxygen Sensor Heater Control Circuit Low (Bank 2 Sensor 2) |
| P0058 | Oxygen Sensor Heater Control Circuit High (Bank 2 Sensor 2) |
| P0101 | Mass Air Flow Circuit Range / Performance Problem |
| P0102 | Mass or Volume Air Flow Circuit Low Input |
| P0103 | Mass or Volume Air Flow Circuit High Input |
| P0111 | Intake Air Temperature Sensor 1 Circuit Range / Performance |
| P0112 | Intake Air Temperature Circuit Low Input |
| P0113 | Intake Air Temperature Circuit High Input |
| P0115 | Engine Coolant Temperature Circuit Malfunction |
| P0116 | Engine Coolant Temperature Circuit Range / Performance Problem |
| P0117 | Engine Coolant Temperature Circuit Low Input |
| P0118 | Engine Coolant Temperature Circuit High Input |
| P011B | Engine Coolant Temperature / Intake Air Temperature Correlation |
| P0120 | Throttle / Pedal Position Sensor / Switch "A" Circuit Malfunction |
| P0121 | Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem |
| P0122 | Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input |
| P0123 | Throttle / Pedal Position Sensor / Switch "A" Circuit High Input |
| P0125 | Insufficient Coolant Temperature for Closed Loop Fuel Control |
| P0128 | Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) |
| P0136 | Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2) |
| P0137 | Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2) |
| P0138 | Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2) |
| P0139 | Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 2) |
| P0141 | Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2) |
| P014C | A/F Sensor Slow Response - Rich to Lean Bank 1 Sensor 1 |
| P014D | A/F Sensor Slow Response - Lean to Rich Bank 1 Sensor 1 |
| P014E | A/F Sensor Slow Response - Rich to Lean Bank 2 Sensor 1 |
| P014F | A/F Sensor Slow Response - Lean to Rich Bank 2 Sensor 1 |
| P0156 | Oxygen Sensor Circuit Malfunction (Bank 2 Sensor 2) |
| P0157 | Oxygen Sensor Circuit Low Voltage (Bank 2 Sensor 2) |
| P0158 | Oxygen Sensor Circuit High Voltage (Bank 2 Sensor 2) |
| P0159 | Oxygen Sensor Circuit Slow Response (Bank 2 Sensor 2) |
| P015A | A/F Sensor Delayed Response - Rich to Lean Bank 1 Sensor 1 |
| P015B | A/F Sensor Delayed Response - Lean to Rich Bank 1 Sensor 1 |
| P015C | A/F Sensor Delayed Response - Rich to Lean Bank 2 Sensor 1 |
| P015D | A/F Sensor Delayed Response - Lean to Rich Bank 2 Sensor 1 |
| P0161 | Oxygen Sensor Heater Circuit Malfunction (Bank 2 Sensor 2) |
| P0171 | System Too Lean (Bank 1) |
| P0172 | System Too Rich (Bank 1) |
| P0174 | System Too Lean (Bank 2) |
| P0175 | System Too Rich (Bank 2) |
| P0220 | Throttle / Pedal Position Sensor / Switch "B" Circuit |
| P0222 | Throttle / Pedal Position Sensor / Switch "B" Circuit Low Input |
| P0223 | Throttle / Pedal Position Sensor / Switch "B" Circuit High Input |
| P0230 | Fuel Pump Primary Circuit |
| P0300 | Random / Multiple Cylinder Misfire Detected |
| P0301 | Cylinder 1 Misfire Detected |
| P0302 | Cylinder 2 Misfire Detected |
| P0303 | Cylinder 3 Misfire Detected |
| P0304 | Cylinder 4 Misfire Detected |
| P0305 | Cylinder 5 Misfire Detected |
| P0306 | Cylinder 6 Misfire Detected |
| P0327 | Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor) |
| P0328 | Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor) |
| P0332 | Knock Sensor 2 Circuit Low Input (Bank 2) |
| P0333 | Knock Sensor 2 Circuit High Input (Bank 2) |
| P0335 | Crankshaft Position Sensor "A" Circuit |
| P0339 | Crankshaft Position Sensor "A" Circuit Intermittent |
| P0340 | Camshaft Position Sensor Circuit Malfunction |
| P0342 | Camshaft Position Sensor "A" Circuit Low Input (Bank 1 or Single Sensor) |
| P0343 | Camshaft Position Sensor "A" Circuit High Input (Bank 1 or Single Sensor) |
| P0345 | Camshaft Position Sensor "A" Circuit (Bank 2) |
| P0347 | Camshaft Position Sensor "A" Circuit Low Input (Bank 2) |
| P0348 | Camshaft Position Sensor "A" Circuit High Input (Bank 2) |
| P0351 | Ignition Coil "A" Primary / Secondary Circuit |
| P0352 | Ignition Coil "B" Primary / Secondary Circuit |
| P0353 | Ignition Coil "C" Primary / Secondary Circuit |
| P0354 | Ignition Coil "D" Primary / Secondary Circuit |
| P0355 | Ignition Coil "E" Primary / Secondary Circuit |
| P0356 | Ignition Coil "F" Primary / Secondary Circuit |
| P0365 | Camshaft Position Sensor "B" Circuit (Bank 1) |
| P0367 | Camshaft Position Sensor "B" Circuit Low Input (Bank 1) |
| P0368 | Camshaft Position Sensor "B" Circuit High Input (Bank 1) |
| P0390 | Camshaft Position Sensor "B" Circuit (Bank 2) |
| P0392 | Camshaft Position Sensor "B" Circuit Low Input (Bank 2) |
| P0393 | Camshaft Position Sensor "B" Circuit High Input (Bank 2) |
| P0420 | Catalyst System Efficiency Below Threshold (Bank 1) |
| P0430 | Catalyst System Efficiency Below Threshold (Bank 2) |
| P043E | Evaporative Emission System Reference Orifice Clog Up |
| P043F | Evaporative Emission System Reference Orifice High Flow |
| P0441 | Evaporative Emission Control System Incorrect Purge Flow |
| P0451 | Evaporative Emission Control System Pressure Sensor Range / Performance |
| P0452 | Evaporative Emission Control System Pressure Sensor / Switch Low Input |
| P0453 | Evaporative Emission Control System Pressure Sensor / Switch High Input |
| P0455 | Evaporative Emission Control System Leak Detected (Gross Leak) |
| P0456 | Evaporative Emission Control System Leak Detected (Very Small Leak) |
| P0500 | Vehicle Speed Sensor "A" |
| P0504 | Brake Switch "A" / "B" Correlation |
| P0505 | Idle Control System Malfunction |
| P050A | Cold Start Idle Air Control System Performance |
| P050B | Cold Start Ignition Timing Performance |
| P0560 | System Voltage |
| P0604 | Internal Control Module Random Access Memory (RAM) Error |
| P0606 | ECM / PCM Processor |
| P0607 | Control Module Performance |
| P060A | Internal Control Module Monitoring Processor Performance |
| P060B | Internal Control Module A/D Processing Performance |
| P060D | Internal Control Module Accelerator Pedal Position Performance |
| P060E | Internal Control Module Throttle Position Performance |
| P0617 | Starter Relay Circuit High |
| P062F | Internal Control Module EEPROM Error |
| P0630 | VIN not Programmed or Mismatch - ECM / PCM |
| P0657 | Actuator Supply Voltage Circuit / Open |
| P0705 | Transmission Range Sensor Circuit Malfunction (PRNDL Input) |
| P0724 | Brake Switch "B" Circuit High |
| P101D | A/F Sensor Heater Circuit Performance Bank 1 Sensor 1 Stuck ON |
| P102D | O2 Sensor Heater Circuit Performance Bank 1 Sensor 2 Stuck ON |
| P103D | A/F Sensor Heater Circuit Performance Bank 2 Sensor 1 Stuck ON |
| P105D | O2 Sensor Heater Circuit Performance Bank 2 Sensor 2 Stuck ON |
| P1603 | Engine Stall History |
| P1604 | Startability Malfunction |
| P1605 | Rough Idling |
| P1607 | Cruise Control Input Processor |
| P2102 | Throttle Actuator Control Motor Circuit Low |
| P2103 | Throttle Actuator Control Motor Circuit High |
| P2109 | Throttle / Pedal Position Sensor "A" Minimum Stop Performance |
| P2111 | Throttle Actuator Control System - Stuck Open |
| P2112 | Throttle Actuator Control System - Stuck Closed |
| P2118 | Throttle Actuator Control Motor Current Range / Performance |
| P2119 | Throttle Actuator Control Throttle Body Range / Performance |
| P2120 | Throttle / Pedal Position Sensor / Switch "D" Circuit |
| P2121 | Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance |
| P2122 | Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input |
| P2123 | Throttle / Pedal Position Sensor / Switch "D" Circuit High Input |
| P2125 | Throttle / Pedal Position Sensor / Switch "E" Circuit |
| P2127 | Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input |
| P2128 | Throttle / Pedal Position Sensor / Switch "E" Circuit High Input |
| P2135 | Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage Correlation |
| P2138 | Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation |
| P2195 | Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1) |
| P2196 | Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1) |
| P2197 | Oxygen (A/F) Sensor Signal Stuck Lean (Bank 2 Sensor 1) |
| P2198 | Oxygen (A/F) Sensor Signal Stuck Rich (Bank 2 Sensor 1) |
| P219A | Bank 1 Air-Fuel Ratio Imbalance |
| P219B | Bank 2 Air-Fuel Ratio Imbalance |
| P2237 | Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 1 Sensor 1) |
| P2238 | Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1) |
| P2239 | Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1) |
| P2240 | Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 2 Sensor 1) |
| P2241 | Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 2 Sensor 1) |
| P2242 | Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 2 Sensor 1) |
| P2252 | Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1) |
| P2253 | Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1) |
| P2255 | Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 2 Sensor 1) |
| P2256 | Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 2 Sensor 1) |
| P2401 | Evaporative Emission System Leak Detection Pump Control Circuit Low |
| P2402 | Evaporative Emission System Leak Detection Pump Control Circuit High |
| P2419 | Evaporative Emission System Switching Valve Control Circuit Low |
| P2420 | Evaporative Emission System Switching Valve Control Circuit High |
| P2610 | ECM / PCM Internal Engine Off Timer Performance |
| 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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