Inspection Procedure

1. Disconnect the M14 display connector.
2. Disconnect the N4 ECU connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   STANDARD RESISTANCE REFERENCE CHART
   
   

   Tester Connection	Specified Condition
   M14-22 (MCO+) - N4-3 (MIC+)	Below 1 Ω
   M14-23 (MCO-) - N4-5 (MIC-)	Below 1 Ω
   M14-22 (MCO+) - Body ground	10 kΩ or higher
   M14-23 (MCO-) - Body ground	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

Fig 1: Checking Wire Harness (Multi-Display - Navigation ECU)

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