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Inspection Procedure

  1. INSPECT FUSE (ECU-IG No. 3) 
    1. Remove the ECU-IG No. 3 fuse from the cowl side junction block RH.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      STANDARD RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      ECU-IG No. 3 fuse Always Below 1 Ω

    NG: REPLACE FUSE 

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (DISTANCE CONTROL ECU - BATTERY AND BODY GROUND) 
    1. Disconnect the E86 distance control ECU connector.
    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage 

      STANDARD VOLTAGE SPECIFICATION

      Tester Connection Switch Condition Specified Condition
      E86-1 (B) - Body ground Engine switch on (IG) 11 to 14 V
      Engine switch off Below 1 V
    3. Measure the resistance according to the value(s) in the table below.
      Fig 1: Identifying E86 Distance Control ECU Connector
      G05760416Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance 

      STANDARD RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      E86-12 (GND) - Body ground Always Below 1 Ω

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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