Inspection Procedure

1. Disconnect the multi-display connector p1 and navigation ECU connector p3.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   RESISTANCE REFERENCE
   
   

   Tester connection	Condition	Specified condition
   MCO+ - MIC+	Always	Below 1 Ω
   MCO- - MIC-	Always	Below 1 Ω
   MCO+ - Body ground	Always	10 kΩ or higher
   MCO- - Body ground	Always	10 kΩ or higher

Fig 1: Identifying Multi-display Connector p1 And Navigation ECU Connector p3
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NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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