Visual Mute Signal Circuit between Navigation ECU and Television Display

AUDIO / VIDEO: REAR SEAT ENTERTAINMENT SYSTEM: Visual Mute Signal Circuit between Navigation ECU and Television Display
- Visual Mute Signal Circuit between Navigation ECU and Television Display

DESCRIPTION

This is the visual mute signal circuit from the display and navigation module display to the television display assembly.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT DISPLAY AND NAVIGATION MODULE DISPLAY

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





Standard Voltage:





Text in Illustration





NG -- CHECK HARNESS AND CONNECTOR (NAVIGATION ECU - TELEVISION DISPLAY)

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

2. CHECK HARNESS AND CONNECTOR (NAVIGATION ECU - TELEVISION DISPLAY)

(a) Disconnect the F48 display and navigation module display connector.

(b) Disconnect the L34 television display assembly 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.

3. INSPECT DISPLAY AND NAVIGATION MODULE DISPLAY

(a) Reconnect the F48 display and navigation module display connector.

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





Standard Voltage:





Text in Illustration





NG -- REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY Removal

OK -- REPLACE TELEVISION DISPLAY ASSEMBLY Removal