FixVault
Home › Lexus › 2007 › RX 400h AWD › Repair and Diagnosis › Accessories & Equipment › Entertainment Systems › Audio / Visual › Audio And Visual System › Gateway ECU Power Source Circuit › Inspection Procedure

Inspection Procedure

  1. INSPECT GATEWAY ECU 
    1. Disconnect the gateway ECU connector G3.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester connection Condition Specified condition
      GND - Body ground Always Below 1 Ω
    3. Measure the voltage according to the value(s) in the table below.
    Fig 1: Identifying Gateway ECU Connector G3
    G05280621Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Standard voltage 

    VOLTAGE SPECIFICATION

    Tester connection Condition Specified condition
    BATT - GND Always 10 to 14 V
    ACC - GND Ignition switch in the ACC position 10 to 14 V
    IG - GND Ignition switch in the ON position 10 to 14 V

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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

About FixVault