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Home >> Lexus >> 2017 >> ES 350 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Cruise Control Systems >> Front Recognition Camera System (Diagnostic Codes & Circuit Tests) >> Front Recognition Camera System (DTC Listing) >> Power Source Circuit (07/2015 -) >> Procedure

Power Source Circuit (07/2015 -): Procedure

  1. CHECK HARNESS AND CONNECTOR (POWER SOURCE VOLTAGE) 
    1. Disconnect the T12 forward recognition camera connector.
    2. Turn the engine switch on (IG).
    3. Measure the voltage according to the value(s) in the table below.
      GTY637229Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Voltage

      Tester Connection Condition Condition
      T12-7 (IGB) - Body ground Engine switch on (IG) 11 to 14 V
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Forward Recognition Camera)
    4. Turn the engine switch off.
    5. Reconnect the T12 forward recognition camera connector.

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result:  OK

    OK 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (FORWARD RECOGNITION CAMERA - BODY GROUND) 
    1. Disconnect the T12 forward recognition camera connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY645846Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Condition
      T12-10 (GND) - Body ground Always Below 1 Ω
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Forward Recognition Camera)
    3. Reconnect the T12 forward recognition camera connector.

    Result:  OK

    OK 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE 

    (Refer to PROBLEM SYMPTOMS TABLE (07/2015 -) )

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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