Inspection Procedure

Fig 1: Identifying Navigation ECU (+B, ACC, Gnd1, Snse) Connector

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1. Disconnect the navigation ECU connector N4, N6.
2. Measure the resistance according to the value (s) in the table below.

   Standard: 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   GND1 - Body ground	Always	Below 1 Ω
   SNSE - Body ground	Always	Below 1 Ω

3. Measure the voltage according to the value (s) in the table below.

Standard: 

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE   or  DIAGNOSTIC TROUBLE CODE CHART