Display Signal Circuit between Navigation ECU and Multi-display: Procedure

1. Disconnect the navigation ECU connector q2 and multi-display connector q1.
   Fig 1: Identifying Navigation ECU Connector q2 And Multi-display Connector q1

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2. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   GVI+ - GVI+	Always	Below 1 Ω
   GVI- - GVI-	Always	Below 1 Ω
   GVG1 - GND	Always	Below 1 Ω
   GVI+ - Body ground	Always	10 kΩ or higher
   GVI- - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

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