Visual Mute Signal Circuit between Navigation ECU and Multi-Display

NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: Visual Mute Signal Circuit between Navigation ECU and Multi-display
- Visual Mute Signal Circuit between Navigation ECU and Multi-display

DESCRIPTION

The display and navigation module display sends a visual mute signal to the center instrument cluster finish panel assembly (multi-display portion). As a result, a black screen is inserted when the screen changes so that noise and distorted images are not displayed.

When an open exists in the circuit, noise and distorted images will be displayed instead of a black screen.

When a short exists in the circuit, even though the center instrument cluster finish panel assembly (multi-display portion) is operating normally, noise and distorted images will be displayed (black screen will not be displayed) during screen changes or the black screen will always be displayed.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT CENTER INSTRUMENT CLUSTER FINISH PANEL ASSEMBLY

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





Standard Voltage:





Text in Illustration





NG -- CHECK HARNESS AND CONNECTOR

OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Problem Symptoms Table

1. CHECK HARNESS AND CONNECTOR

(a) Disconnect the F37 center instrument cluster finish panel assembly connector.

(b) Disconnect the F31 display and navigation module display connector.

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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

2. REPLACE CENTER INSTRUMENT CLUSTER FINISH PANEL ASSEMBLY

(a) Replace the center instrument cluster finish panel assembly and check if it operates normally Removal.

OK:

The navigation system operates normally.

NG -- REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY Removal

OK -- END