Toyota Tundra Service Manual: Navigation Receiver Assembly Power Source Circuit

Toyota Tundra Service Manual / Audio, Visual, Telematics / Navigation / Multi Info Display / Navigation System / Navigation Receiver Assembly Power Source Circuit

DESCRIPTION

This circuit provides power to the navigation receiver assembly.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE

1.	CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - BATTERY AND BODY GROUND)

(a) Disconnect the navigation receiver assembly connectors.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
J133-7 (GND) - Body ground	Always	Below 1 Ω

Standard Voltage:

Tester Connection	Condition	Specified Condition
J133-4 (+B1) - Body ground	Always	11 to 14 V
J133-3 (ACC1) - Body ground	Ignition switch ACC	11 to 14 V
J135-1 (IG) - Body ground	Ignition switch ON	11 to 14 V

Text in Illustration

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

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE HARNESS OR CONNECTOR

Mute Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier

Navigation Voice Circuit

See More:

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