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.
2021 Lexus RC F Fuji Speedway EditionFACTORY OEM SERVICE PROCEDURE
Engine Control System - Diagnostic Codes (6 Of 9)
- SFI System
- DTC P0500: Vehicle Speed Sensor [09/2014 - ]
- DTC P0504: Brake Switch "A" / "B" Correlation [09/2014 - ]
- DTC P0505: Idle Control System [09/2014 - 10/2015]
- DTC P0505: Idle Control System [10/2015 - ]
- DTC P050A: Cold Start Idle Air Control System Performance [09/2014 - 10/2015]
- DTC P050A: Cold Start Idle Air Control System Performance [10/2015 - 11/2017]
- DTC P050A: Cold Start Idle Air Control System Performance [11/2017 - ]
- DTC P050B: Cold Start Ignition Timing Performance [09/2014 - 10/2015]
- DTC P050B: Cold Start Ignition Timing Performance [10/2015 - 11/2017]
- DTC P050B: Cold Start Ignition Timing Performance [11/2017 - ]
- DTC P0560: System Voltage [09/2014 - ]
- DTC P0604: Random Access Memory (RAM) [09/2014 - ]
- DTC P0606: ECM / PCM Processor [09/2014 - ]
- DTC P0607: Control Module Performance [09/2014 - ]
- DTC P060A: Internal Control Module Monitoring Processor Performance [09/2014 - ]
- DTC P060B: Internal Control Module A/D Processing Performance [09/2014 - ]
- DTC P060D: Internal Control Module Accelerator Pedal Position Performance [09/2014 - ]
- DTC P060E: Internal Control Module Throttle Position Performance [09/2014 - ]
- DTC P0617: Starter Relay Circuit High [09/2014 - 10/2015]
- DTC P0617: Starter Relay Circuit High [10/2015 - ]
- DTC P062F: Internal Control Module EEPROM Error [09/2014 - ]
- DTC P0630: VIN not Programmed or Mismatch - ECM / PCM [09/2014 - 10/2015]
- DTC P0630: VIN not Programmed or Mismatch - ECM / PCM [10/2015 - ]
- DTC P0657: Actuator Supply Voltage Circuit / Open [09/2014 - ]
- DTC P0705: Transmission Range Sensor Circuit (PRNDL Input) [09/2014 - ]
- DTC P0724: Brake Switch "B" Circuit High [09/2014 - ]
- DTC P1023: Camshaft Position Signal Output "B" Circuit; DTC P2614: Camshaft Position Signal Output Circuit / Open [09/2014 - ]
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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