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Home >> Toyota >> 2009 >> 4 Runner 2WD V8-4.7L (2UZ-FE) >> Repair and Diagnosis >> Accessories and Optional Equipment >> Navigation System >> Testing and Inspection >> Component Tests and General Diagnostics >> Radio and Navigation Assembly Power Source Circuit
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Radio and Navigation Assembly Power Source Circuit








NAVIGATION: NAVIGATION SYSTEM: Radio and Navigation Assembly Power Source Circuit

Radio and Navigation Assembly Power Source Circuit

DESCRIPTION

This is the power source circuit to operate the radio and navigation assembly.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT RADIO AND NAVIGATION ASSEMBLY




(a) Disconnect the radio and navigation assembly connector R12.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:





(c) Measure the voltage according to the value(s) in the table below.
Standard voltage:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
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