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Home >> Toyota >> 2019 >> Mirai >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Parking Support Brake System - Diagnostic Codes >> Parking Support Brake System >> DTC C1A4B: Stop Light Relay Circuit [11/2018 - ] >> Caution / Notice / Hint

Caution / Notice / Hint

NOTE:
  • After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

    Refer to PRECAUTION [06/2015 - ]

  • After replacing an ultrasonic sensor or the clearance warning ECU assembly, perform the necessary procedures (adjustment, calibration, initialization or registration).

    Refer to CALIBRATION [11/2018 - ]

  • When DTC C1A4B is stored, there may be a malfunction in the lighting system. Inspect the lighting system before performing the following procedure.

    For HV Model with Cornering Light: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ]

    For HV Model without Cornering Light: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ]

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