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Inspection Procedure

  1. CHECK WIRE HARNESS (NAVIGATION ECU - MULTI-DISPLAY) 
    1. Disconnect the N8 ECU connector.
    2. Disconnect the M16 display connector.
    3. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      STANDARD RESISTANCE REFERENCE CHART

      Tester Connection Specified Condition
      N8-1 - M16-1 Below 1 Ω
      N8-2 - M16-2 Below 1 Ω
      N8-3 - M16-3 Below 1 Ω
      N8-1 - Body ground 10 kΩ or higher
      N8-2 - Body ground 10 kΩ or higher
      N8-3 - Body ground 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    Fig 1: Identifying N8 ECU Connector And M16 Display Connector
    G05190153Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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