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Home >> Lexus >> 2019 >> ES 350 Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 231 (Parking Support Alert System - Diagnostic Codes & Circuit Tests) >> Parking Support Alert System >> DTC C1AE8-96: Ultrasonic Sensor (Rear Right Center) Component Internal Failure [09/2022 - ] >> Procedure

DTC C1AE8-96: Ultrasonic Sensor (Rear Right Center) Component Internal Failure [09/2022 - ]: 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 DTC is output A
      "C1AE8-96" is output B
      "C1AE8-96" and "C1AE8-87" are output C

    Result: 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ] 

    Result: 

    GO TO OTHER FLOWCHART (C1AE8-87). Refer to  DTC C1AE8-87: Ultrasonic Sensor (Rear Right Center) Missing Message [09/2022 - ]  

    Result: 

    See step  2

  2. REPLACE REAR CENTER ULTRASONIC SENSOR RH 
    1. Replace the rear center ultrasonic sensor RH with a new or normally functioning one.

      Refer to REMOVAL [09/2022 - ]

      HINT: 

      To check if the ultrasonic sensor is functioning correctly, replace it with another ultrasonic sensor.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  3

  3. 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 DTC is output A
      "C1AE8-96" is output B

    Result: 

    END (REAR CENTER ULTRASONIC SENSOR RH WAS DEFECTIVE) 

    Result: 

    REPLACE CLEARANCE WARNING ECU ASSEMBLY. Refer to  REMOVAL [09/2022 - ]