Display Signal Circuit between Multi-display Controller and Disc Player Controller

AUDIO / VISUAL: REAR SEAT ENTERTAINMENT SYSTEM: Display Signal Circuit between Multi-display Controller and Disc Player Controller

Display Signal Circuit between Multi-display Controller and Disc Player Controller

DESCRIPTION

This is the display signal circuit from the disc player to the multi-display controller.
HINT: Only vehicles with a disc player have this circuit.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK MULTI-DISPLAY CONTROLLER




(a) Disconnect the R30 controller connector.
(b) Using an oscilloscope, check the signal waveform between each terminal and the body ground according to the conditions, as shown in the chart below.

Measurement condition





OK:
Waveform is as shown in the illustration.
NG -- CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER - REAR SEAT CONSOLE BOX)
OK -- REPLACE MULTI-DISPLAY CONTROLLER
2. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER - REAR SEAT CONSOLE BOX)




(a) Disconnect the R30 controller.
(b) Disconnect the R16 box 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 REAR SEAT CONSOLE BOX




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






NG -- REPLACE REAR SEAT CONSOLE BOX
OK -- REPLACE DISC PLAYER