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Inspection Procedure

  1. INSPECT TRANSMISSION CONTROL ECU ASSY (E1 TERMINAL) 
    1. Disconnect the T4 connector from the transmission control ECU assy.
    2. Measure the resistance according to the value (s) in the table below.

    Standard: 

    TRANSMISSION CONTROL ECU ASSY (E1 TERMINAL) SPECIFIED CONDITIONS

    Tester connection (Symbols) Condition Specified condition
    T4-15 (E1) - Body ground Always Below 1Ω
    Fig 1: Inspecting Transmission Control ECU Assy (E1 Terminal)
    G02620779Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: GO TO NEXT STEP 
  2. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL ECU ASSY - SHIFT CONTROL ACTUATOR ASSY) 
    1. Measure the voltage according to the value (s) in the table below.

    Standard: 

    TRANSMISSION CONTROL ECU ASSY - SHIFT CONTROL ACTUATOR ASSY SPECIFIED CONDITIONS

    Tester Connection (Symbols) Condition Specified condition
    T4-10 (MWA) - Body ground Always Below 1 V
    T4-11 (MVA) - Body ground Always Below 1 V
    T4-12 (MUA) - Body ground Always Below 1 V
    Fig 2: Checking Harness And Connector (Transmission Control ECU Assy - Shift Control Actuator Assy)
    G02620780Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: GO TO NEXT STEP 

    REPLACE TRANSMISSION CONTROL ECU ASSY 

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