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Home >> Lexus >> 2020 >> RX 450h Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> Intuitive Parking Assist System (W/ Intelligent Clearance Sonar System) (Diagnostic Codes & Circuit Tests) >> INTUITIVE PARKING ASSIST SYSTEM (w/ Intelligent Clearance Sonar System) >> DTC C1AE2: Front Left Center Sensor [08/2019 - ] >> Procedure

DTC C1AE2: Front Left Center Sensor [08/2019 - ]: Procedure

  1. CHECK DTC OUTPUT 
    1. Check for DTCs.

      Refer to DTC CHECK / CLEAR [08/2016 - ]

      Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes 

      Result

      Result Proceed to
      Only DTC C1AE2 is output A
      DTC C1AE2 and C1AEC are output B
      No DTCs are output C

    Result: 

    GO TO DTC (C1AEC). Refer to  DTC C1AEC: Front Sensor Communication Malfunction [08/2019 - ]  

    Result: 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - 07/2020]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [07/2020 - ] 

    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 [08/2019 - ]

      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.

      Refer to DTC CHECK / CLEAR [08/2016 - ]

      Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Clear DTCs 

    2. Check for DTCs.

      Refer to DTC CHECK / CLEAR [08/2016 - ]

      Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes 

      Result

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

    Result: 

    REPLACE CLEARANCE WARNING ECU ASSEMBLY. Refer to  REMOVAL [08/2019 - ] 

    Result: 

    END (FRONT LEFT CENTER SENSOR WAS DEFECTIVE)