Navigation Receiver Assembly Power Source Circuit [11/2013 - 10/2015]: Procedure

1. Disconnect the navigation receiver assembly connectors.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Navigation Receiver Assembly)

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G141-7 (GND1) - Body ground	Always	Below 1 Ω

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

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   G141-4 (+B1) - Body ground	Always	11 to 14 V
   G141-3 (ACC1) - Body ground	Ignition switch ACC	11 to 14 V
   G143-1 (IG) - Body ground	Ignition switch ON	11 to 14 V

   Result	Proceed to
   	OK
   	NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [11/2013 - 10/2015]  . 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR