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Home >> Toyota >> 2025 >> Prius LE >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Front Side Radar Sensor System - Diagnostic Codes >> Front Side Radar Sensor System >> DTC C1A16-04: Front Side Radar Sensor (Module "A") System Internal Failure [12/2022 - ] >> Caution / Notice / Hint
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Caution / Notice / Hint

NOTE:
  • When checking for DTCs, make sure that the pre-collision system is turned on.
  • After replacing the front side radar sensor, make sure to perform ECU writing.

    Refer to ECU CONFIGURATION [12/2022 - ]

  • After replacing the front side radar sensor, make sure to perform front side radar sensor beam axis alignment and clear all stored vehicle control history of each system.

    HINT: 

    Front side radar sensor beam axis alignment can be performed by using "Triangle Target", "Driving Adjustment" or "ECU DATA SAVE/WRITE".

    Triangle Target: Refer to TARGET ADJUSTMENT (TRIANGLE TARGET) [12/2022 - ]

    Driving Adjustment: Refer to DRIVING ADJUSTMENT [12/2022 - ]

    ECU DATA SAVE/WRITE: Refer to ECU DATA SAVE/WRITE [12/2022 - ]