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Home >> Toyota >> 2020 >> Highlander L, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 20 (Intuitive Parking Assist System - Diagnostic Codes & Circuit Tests) >> Intuitive Parking Assist System >> DTC C1AE2-96: Ultrasonic Sensor (Front Left Center) Component Internal Failure [11/2023 - ] >> Procedure

DTC C1AE2-96: Ultrasonic Sensor (Front Left Center) Component Internal Failure [11/2023 - ]: Procedure

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  1. CHECK FOR DTC 
    1. According to the display on the GTS, check for DTCs.

      Body Electrical > Clearance Warning > Trouble Codes 

    2. According to the display on the GTS, clear the DTCs.

      Body Electrical > Clearance Warning > Clear DTCs 

    3. Recheck for DTCs.

      Body Electrical > Clearance Warning > Trouble Codes 

      Result

      Result Proceed to
      No DTCs are output A
      Only DTC C1AE2-96 is output B
      DTC C1AE2-96 and C1AE2-87 are output C

    Result: 

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

    Result: 

    GO TO DTC (C1AEC-287). Refer to  DTC C1AE2-87: Ultrasonic Sensor (Front Left Center) Missing Message [11/2023 - ]  

    Result: 

    See step  2

  2. REPLACE FRONT CENTER ULTRASONIC SENSOR LH 
    1. Replace the front center ultrasonic sensor LH with a known good one.

      Refer to REMOVAL [11/2023 - ]

      HINT: 

      All of the sensors are interchangeable. To confirm whether a sensor is functioning normally, switch it with a known good sensor from the other end of the vehicle.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  3

  3. CHECK DTC OUTPUT 
    1. Clear the DTCs.

      Body Electrical > Clearance Warning > Clear DTCs 

    2. Check for DTCs.

      Body Electrical > Clearance Warning > Trouble Codes 

      Result

      Result Proceed to
      No DTCs are output A
      DTC C1AE2-96 is output B

    Result: 

    END (FRONT CENTER ULTRASONIC SENSOR LH WAS DEFECTIVE) 

    Result: 

    REPLACE CLEARANCE WARNING ECU ASSEMBLY. Refer to  REMOVAL [11/2023 - ]