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.
2013 Lexus IS 350C BaseFACTORY OEM SERVICE PROCEDURE
Engine Control System (Diagnostic Codes (P0171-P060A))
- SFI System
- 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 P1170: Port Injector Fuel Performance; DTC P117B: Direct Injector Fuel Performance
- 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 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 P062D: No. 1 Fuel Injector Driver Circuit Performance
- DTC P0230: Fuel Pump Primary Circuit
- 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: 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: Crankshaft Position Sensor "A" Circuit; DTC P0339: Crankshaft Position Sensor "A" Circuit Intermittent
- 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: 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: 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 P0420: Catalyst System Efficiency Below Threshold (Bank 1); DTC P0430: Catalyst System Efficiency Below Threshold (Bank 2)
- DTC P043E: Evaporative Emission System Reference Orifice Clog Up; DTC P043F: Evaporative Emission System Reference Orifice High Flow; DTC P2401: Evaporative Emission System Leak Detection Pump Control Circuit Low; DTC P2402: Evaporative Emission System Leak Detection Pump Control Circuit High; DTC P2419: Evaporative Emission System Switching Valve Control Circuit Low
- DTC P0441: Evaporative Emission Control System Incorrect Purge Flow
- 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: Evaporative Emission Control System Leak Detected (Gross Leak); DTC P0456: Evaporative Emission Control System Leak Detected (Very Small Leak)
- DTC P0500: Vehicle Speed Sensor "A"
- DTC P0504: Brake Switch "A" / "B" Correlation
- DTC P0505: Idle Control System Malfunction
- DTC P050A: Cold Start Idle Air Control System Performance
- DTC P050B: Cold Start Ignition Timing Performance
- DTC P0560: System Voltage
- DTC P0604: Internal Control Module Random Access Memory (RAM) Error
- DTC P0606: ECM / PCM Processor
- DTC P0607: Control Module Performance
- DTC P060A: Internal Control Module Monitoring Processor Performance
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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