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Home >> Toyota >> 2019 >> RAV4 Adventure >> Repair and Diagnosis >> Accessories & Equipment >> Collision/Avoidance >> Intuitive Parking Assist System (Except HV, W/ Parking Support Brake System) - Diagnostic Codes (2 Of 2) & Circuit Tests >> INTUITIVE PARKING ASSIST SYSTEM (for Gasoline Model with Parking Support Brake System) >> Clearance Warning ECU Power Source Circuit [10/2019 - 10/2023] >> Procedure

Clearance Warning ECU Power Source Circuit [10/2019 - 10/2023]: Procedure

  1. CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSEMBLY - BODY GROUND) 
    1. Disconnect the clearance warning ECU assembly connector.
      GTY905094Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A for TMMC Made
      *B for TMC Made
      *a Front view of wire harness connector
      (to Clearance Warning ECU Assembly)
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      FOR TMMC MADE:

      Tester Connection Condition Specified Condition
      G25-28 (E) - Body ground Always Below 1 Ω
      FOR TMC MADE:

      Tester Connection Condition Specified Condition
      H4-28 (E) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSEMBLY POWER SOURCE) 
    1. Disconnect the clearance warning ECU assembly connector.
      GTY905095Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A for TMMC Made
      *B for TMC Made
      *a Front view of wire harness connector
      (to Clearance Warning ECU Assembly)
    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      FOR TMMC MADE:

      Tester Connection Switch Condition Specified Condition
      G25-1 (IG) - Body ground Engine switch on (IG) 11 to 14 V*1
      10.5 to 16 V*2
      G25-1 (IG) - Body ground Engine switch off Below 1 V

      *1: w/o Stop and Start System

      *2: w/ Stop and Start System

      FOR TMC MADE:

      Tester Connection Switch Condition Specified Condition
      H4-1 (IG) - Body ground Engine switch on (IG) 11 to 14 V*1
      10.5 to 16 V*2
      H4-1 (IG) - Body ground Engine switch off Below 1 V

      *1: w/o Stop and Start System

      *2: w/ Stop and Start System

      Result

      Result Proceed to
      OK A
      NG (w/o Stop and Start System) B
      NG (w/ Stop and Start System) C

    Result: 

    A 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [11/2018 - 08/2020]  , or refer to  PROBLEM SYMPTOMS TABLE [08/2020 - ] 

    Result: 

    B 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    C 

    GO TO STOP AND START SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - 10/2023] 

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