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Home >> Lexus >> 2008 >> GS 350 AWD V6-3.5L (2GR-FSE) >> Repair and Diagnosis >> Accessories and Optional Equipment >> Navigation System >> Testing and Inspection >> Component Tests and General Diagnostics >> Navigation ECU Power Source Circuit
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Navigation ECU Power Source Circuit









NAVIGATION: NAVIGATION SYSTEM: Navigation ECU Power Source Circuit

Navigation ECU Power Source Circuit

DESCRIPTION

This is the power source circuit to operate the navigation ECU.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT MULTI-DISPLAY





(a) Disconnect the navigation ECU connector.
(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 -- CHECK HARNESS AND CONNECTOR (NAVIGATION ECU - MULTI-DISPLAY)
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
2. CHECK HARNESS AND CONNECTOR (NAVIGATION ECU - MULTI-DISPLAY)





(a) Disconnect the multi-display connector.





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






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE MULTI-DISPLAY
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