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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> Front Camera System - Diagnostic Codes >> Front Camera System >> DTC C1000-1C: Control Module Internal Temperature Sensor "A" Circuit Voltage Out of Range; DTC C1005-1C: Control Module Internal Temperature Sensor "B" 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 [11/2023 - ] >> Procedure

DTC C1000-1C: Control Module Internal Temperature Sensor "A" Circuit Voltage Out of Range; DTC C1005-1C: Control Module Internal Temperature Sensor "B" 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 [11/2023 - ]: Procedure

  1. CHECK FOR DTCs 
    1. Clear the DTCs.

      Chassis > Front Recognition Camera > Clear DTCs 

    2. Turn the ignition switch off.
    3. Turn the ignition switch to ON and wait 80 seconds or more.
    4. Check for DTCs.

      Chassis > Front Recognition Camera > Trouble Codes 

      OK

      DTCs are not output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - ] 

    Result: 

    NG 

    See step  2

  2. REPLACE FORWARD RECOGNITION CAMERA 
    1. Replace the forward recognition camera with a new one.

      Refer to REMOVAL [11/2023 - ]

    2. Perform forward recognition camera adjustment.

      HINT: 

      Forward recognition camera axis alignment can be performed by using either One Time Recognition, Sequential Recognition or Driving Adjustment.

      One Time Recognition: Refer to TARGET ADJUSTMENT (ONE TIME RECOGNITION) [09/2020 - ]

      Sequential Recognition: Refer to TARGET ADJUSTMENT (SEQUENTIAL RECOGNITION) [09/2020 - ]

      Driving Adjustment: Refer to DRIVING ADJUSTMENT [09/2020 - ]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    END