Inspection Procedure

1. Disconnect the navigation ECU connector M16.
2. Measure the resistance according to the value(s) in the table below.
   STANDARD RESISTANCE SPECIFIED CONDITION
   
   

   Tester connection	Condition	Specified condition
   GND1 - Body ground	Always	Below 1

3. Measure the voltage according to the value(s) in the table below.
   STANDARD VOLTAGE SPECIFIED CONDITION
   
   

   Tester connection	Condition	Specified condition
   +B - GND1	Always	10 to 14 V
   ACC - GND1	Ignition SW on (ACC)	10 to 14 V

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 1: Disconnecting Navigation ECU Connector M16

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