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.
2018 Lexus GS 300 BaseFACTORY OEM SERVICE PROCEDURE
Engine Control System - Diagnostic Codes (2 Of 5)
- SFI System
- DTC P060D-49: Internal Control Module Accelerator Pedal Position Performance Internal Electronic Failure [10/2015 - ]
- DTC P060E-49: Internal Control Module Throttle Position Performance Internal Electronic Failure; DTC P061E49: Internal Control Module Brake Signal Internal Electronic Failure [10/2015 - ]
- DTC P0615-12: Starter Relay Circuit Short to Battery [10/2015 - ]
- DTC P062F-44: Internal Control Module EEPROM Data Memory Failure [10/2015 - 09/2018]
- DTC P062F-44: Internal Control Module EEPROM Data Memory Failure [09/2018 - ]
- DTC P0630-51: VIN Not Programmed [10/2015 - ]
- DTC P0657-14: Actuator Supply Voltage "A" Circuit Short to Ground or Open [10/2015 - ]
- DTC P0657-9E: Actuator Supply Voltage "A" Stuck On [10/2015 - ]
- DTC P0703-12: Brake Switch "B" Circuit Short to Battery [10/2015 - ]
- DTC P0705-13: Transmission Range Sensor "A" Circuit Open; DTC P070562: Transmission Range Sensor "A" Signal Compare Failure [10/2015 - ]
- DTC P106C-62: Evaporative Emission System Pressure/Barometric Pressure Signal Compare Failure; DTC P106D62: Evaporative Emission System Pressure Sensor - Turbocharger/Supercharger Boost Sensor Signal Compare Failure [10/2015 - ]
- DTC P107A-11: Fuel Rail Pressure Sensor (Low) Circuit Short to Ground [10/2015 - ]
- DTC P107A-15: Fuel Rail Pressure Sensor (Low) Circuit Short to Battery or Open [10/2015 - ]
- DTC P107A-2A: Fuel Rail Pressure Sensor (Low) Signal Stuck in Range; DTC P107A64: Fuel Rail Pressure Sensor (Low) Signal Plausibility Failure [10/2015 - 09/2018]
- DTC P107A-2A: Fuel Rail Pressure Sensor (Low) Signal Stuck in Range; DTC P107A64: Fuel Rail Pressure Sensor (Low) Signal Plausibility Failure [09/2018 - ]
- DTC P11EA-00: Bank 1 Air-Fuel Ratio Imbalance (Port); DTC P11EC00: Cylinder #1 Air-Fuel Ratio Imbalance (Port); DTC P11ED00: Cylinder #2 Air-Fuel Ratio Imbalance (Port); DTC P11EE00: Cylinder #3 Air-Fuel Ratio Imbalance (Port); DTC P11EF00: Cylinder #4 Air-Fuel Ratio Imbalance (Port); DTC P219A00: Bank 1 Air-Fuel Ratio Imbalance; DTC P219C00: Cylinder 1 Air-Fuel Ratio Imbalance; DTC P219D00: Cylinder 2 Air-Fuel Ratio Imbalance; DTC P219E00: Cylinder 3 Air-Fuel Ratio Imbalance; DTC P219F00: Cylinder 4 Air-Fuel Ratio Imbalance [10/2015 - 09/2018]
- DTC P11EA-00: Bank 1 Air-Fuel Ratio Imbalance (Port); DTC P11EC00: Cylinder #1 Air-Fuel Ratio Imbalance (Port); DTC P11ED00: Cylinder #2 Air-Fuel Ratio Imbalance (Port); DTC P11EE00: Cylinder #3 Air-Fuel Ratio Imbalance (Port); DTC P11EF00: Cylinder #4 Air-Fuel Ratio Imbalance (Port); DTC P219A00: Bank 1 Air-Fuel Ratio Imbalance; DTC P219C00: Cylinder 1 Air-Fuel Ratio Imbalance; DTC P219D00: Cylinder 2 Air-Fuel Ratio Imbalance; DTC P219E00: Cylinder 3 Air-Fuel Ratio Imbalance; DTC P219F00: Cylinder 4 Air-Fuel Ratio Imbalance [09/2018 - ]
- DTC P1235-13: High Pressure Fuel Pump Circuit Open [10/2015 - ]
- DTC P1378-00: Pre-ignition Detected [10/2015 - 09/2018]
- DTC P1378-00: Pre-ignition Detected [09/2018 - ]
- DTC P148D-7E: Purge One Way Valve Stuck Open [10/2015 - 09/2018]
- DTC P148D-7E: Purge One Way Valve Stuck Open [09/2018 - ]
- DTC P15EA-12: Oil Jet Control Valve Circuit Short to Battery; DTC P15EA14: Oil Jet Control Valve Circuit Short to Ground or Open [10/2015 - ]
- DTC P1603-00: Engine Stall History [10/2015 - 09/2017]
- DTC P1603-00: Engine Stall History [09/2017 - ]
- DTC P1604-00: Startability Malfunction [10/2015 - ]
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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