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Home >> Lexus >> 2007 >> IS 250 RWD, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Can Communication >> Can Communication System >> Gateway ECU Communication Stop Mode >> Inspection Procedure

Inspection Procedure

  1. CHECK WIRE HARNESS (BATT, ACC, IG, GND) 
    1. Turn the engine switch off.
    2. Disconnect the gateway ECU connector (J76).
    3. Measure the resistance according to the value(s) in WIRE HARNESS (BATT, ACC, IG, GND) (RESISTANCE)  .

      Standard resistance 

      WIRE HARNESS (BATT, ACC, IG, GND) (RESISTANCE)

      Tester Connection Condition Specified Value
      J76-24 (GND) - Body ground Always Below 1 ohms
    4. Measure the voltage according to the value(s) in WIRE HARNESS (BATT, ACC, IG, GND) (VOLTAGE)  .

    Standard voltage 

    WIRE HARNESS (BATT, ACC, IG, GND) (VOLTAGE)

    Tester Connection Condition Specified Value
    J76-10 (BATT) - Body ground Always 10 to 14 V
    J76-2 (ACC) - Body ground Engine switch on (IG) 10 to 14 V
    J76-1 (IG) - Body ground Engine switch on (IG) 10 to 14 V
    Fig 1: Identifying J76 Connector Terminals
    G04051948Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE GATEWAY ECU 

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