RGB Area (YS) Signal Circuit

RGB AREA (YS) SIGNAL CIRCUIT

Description

Transmits the display area of RGB image displayed by AV control unit with RGB area (YS) signal to display unit.


Diagnosis Procedure

Regarding Wiring Diagram information, With Color Display Without Navigation System Bose Audio.

1. CHECK CONTINUITY RGB AREA (YS) SIGNAL CIRCUIT






1.Turn ignition switch OFF.
2.Disconnect display unit connector M141 and AV control unit connector M154.
3.Check continuity between display unit harness connector M141
(A) terminal 9 and AV control unit harness connector M154 (B)
terminal 43.





4.Check continuity between display unit harness connector M141
(A) terminal 9 and ground.





Are continuity results as specified?
YES- GO TO 2.
NO- Repair harness or connector.

2. CHECK RGB SYNCHRONIZING SIGNAL






1.Connect display unit connector M141 and AV control unit connector M154.
2.Turn ignition switch ON.
3.Check signal between display unit harness connector M141 terminal 9 and ground.





Are voltage readings as specified?
YES- Replace display unit. With Color Display.
NO- Replace AV control unit. With Color Display.