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Home >> Lexus >> 2007 >> LS 460L >> Repair and Diagnosis >> Accessories & Equipment >> Warning Systems >> Park Assist / Monitoring >> Intuitive Parking Assist System >> Clearance Sonar Main Switch Circuit >> Inspection Procedure

Inspection Procedure

  1. READ VALUE OF INTELLIGENT TESTER OR TECHSTREAM (MAIN SWITCH) 
    1. Use the Data List to check if the clearance sonar main switch is functioning properly.
      1. Intelligent tester

        INTUITIVE P/A 

        INTELLIGENT TESTER - INTUITIVE P/A

        Tester Display Measurement Item/Range Normal Condition Diagnostic Note
        MAIN SW Clearance sonar main switch/ OFF or ON OFF: Clearance sonar main switch OFF
        ON: Clearance sonar main switch ON        		 -
      2. Techstream

        Intuitive P/A 

        TECHSTREAM - INTUITIVE P/A

        Tester Display Measurement Item/Range Normal Condition Diagnostic Note
        Main Switch Clearance sonar main switch/ OFF or ON OFF: Clearance sonar main switch OFF
        ON: Clearance sonar main switch ON        		 -

    NG: Go to step 2 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE   ) 

  2. CHECK FUSE (D-IG1-1, D MPX-B 1) 
    1. Remove the D-IG1-1 and D MPX-B 1 fuses from driver side junction block.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      FUSE (D-IG1-1, D MPX-B 1)

      Tester Connection Condition Specified Condition
      D-IG1-1 fuse Always Below 1 Ω
      D MPX-B 1 fuse Always Below 1 Ω

    NG: REPLACE FUSE 

    OK: GO TO NEXT STEP 

  3. CHECK HARNESS AND CONNECTOR (OUTER MIRROR SWITCH POWER SUPPLY) 
      Fig 1: Identifying Terminals Of Outer Mirror Switch
      G04951885Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the switch connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      OUTER MIRROR SWITCH POWER SUPPLY RESISTANCE

      Tester Connection Condition Specified Condition
      L6-1 (E) - Body ground Always Below 1 Ω
    3. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      OUTER MIRROR SWITCH POWER SUPPLY VOLTAGE

      Tester Connection Switch Condition Specified Condition
      L6-12 (B) - Body ground Always 11 to 14 V
      L6-11 (IG) - Body ground Engine switch on (IG) 11 to 14 V

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE   ) 

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