Navigation ECU Power Source Circuit

NAVIGATION / MULTI INFO DISPLAY: 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 NAVIGATION ECU

(a) Disconnect the navigation ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:

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 navigation ECU connector and 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