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 BaseFACTORY OEM SERVICE PROCEDURE
Section 11 (Front Camera System - Diagnostic Codes)
WARNING: This page is about a different car, the 2024 Lexus RC F and 2023 Lexus RC F. However, it is still accessible from the selected car via links, so may be relevant.
- Front Camera System
- Vehicle Control History [01/2023 - ]
- DTC C1000-1C: Control Module Internal Temperature Sensor "A" Circuit Circuit Voltage Out of Range; DTC C1005-1C: Control Module Internal Temperature Sensor "B" Circuit Circuit Voltage Out of Range; DTC C100A-62: Control Module Internal Temperature Sensor A/B Correlation Signal Compare Failure; DTC C1A93-46: Main Microcomputer in Front Recognition Camera Calibration/Parameter Memory Failure; DTC C1A94-45: Image Processing Microcomputer in Front Recognition Camera Program Memory Failure; DTC C1A94-47: Image Processing Microcomputer in Front Recognition Camera Watchdog/Safety MCU Failure; DTC C1A94-87: Image Processing Microcomputer to Main Microcomputer in Front Recognition Camera Missing Message; DTC C1A95-00: Image Processing Module Malfunction in Front Recognition Camera; DTC C1A96-1C: Power Supply Circuit in Front Recognition Camera Circuit Voltage Out of Range [01/2023 - ]
- DTC C1A4A-12: Buzzer Circuit Short to Battery [01/2023 - ]
- DTC C1A4A-14: Buzzer Circuit Short to Ground or Open [01/2023 - ]
- DTC C1A75-87: Steering Vibrator System Missing Message [01/2023 - ]
- DTC C1AA8-00: Front Recognition Camera Optical Axis Misalignment Malfunction [01/2023 - ]
- DTC C1AAE-00: Front Recognition Camera Heater Malfunction [01/2023 - ]
- DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message; DTC U0125-87: Lost Communication with Multi-axis Acceleration Sensor Module Missing Message; DTC U0126-87: Lost Communication with Steering Angle Sensor Module Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message [01/2023 - ]
- DTC U0300-51: Internal Control Module Software Incompatibility Not Programmed; DTC U0300-57: Internal Control Module Software Incompatibility Invalid/Incompatible Software Component [01/2023 - ]
- DTC U0322-51: Software Incompatibility with Body Control Module Not Programmed [01/2023 - ]
- DTC U0322-57: Software Incompatibility with Body Control Module Invalid/Incompatible Software Component [01/2023 - ]
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.