PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM: Black Screen; 2018 - 2020 MY Sienna [11/2017

Last Modified: 04-05-2023	6.11:8.1.0	Doc ID: RM1000000018JBW
Model Year Start: 2018	Model: Sienna	Prod Date Range: [11/2017 - ]
Title: PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM: Black Screen; 2018 - 2020 MY Sienna [11/2017 - ]

Black Screen

DESCRIPTION

The video signal from the rear television camera assembly is transmitted to the radio and display receiver assembly.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Depending on the parts that are replaced or operations that are performed during vehicle inspection or maintenance, calibration of other systems as well as the parking assist monitor system may be needed.

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NOTICE:

When replacing the radio and display receiver assembly, always replace it with a new one. If a radio and display receiver assembly which was installed to another vehicle is used, the following may occurs:
- A communication malfunction DTC may be stored.
- The radio and display receiver assembly may not operate normally.

PROCEDURE

1.	CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - REAR TELEVISION CAMERA ASSEMBLY)

(a) Disconnect the D196 radio and display receiver assembly connector.

(b) Disconnect the W30 rear television camera assembly connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
D196-30 (CA+) - W30-6 (CB+)	Always	Below 1 Ω
D196-28 (V+) - W30-3 (CV+)	Always	Below 1 Ω
D196-29 (V-) - W30-2 (CV-)	Always	Below 1 Ω
D196-27 (CGND) - W30-5 (CGND)	Always	Below 1 Ω
D196-26 (CSLD) - Body ground	Always	10 kΩ or higher
D196-30 (CA+) or W30-6 (CB+) - Body ground	Always	10 kΩ or higher
D196-28 (V+) or W30-3 (CV+) - Body ground	Always	10 kΩ or higher
D196-29 (V-) or W30-2 (CV-) - Body ground	Always	10 kΩ or higher
D196-27 (CGND) or W30-5 (CGND) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

2.	INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY

(a) Reconnect the radio and display receiver assembly connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
D196-29 (V-) - Body ground	Always	Below 1 Ω
D196-27 (CGND) - Body ground	Always	Below 1 Ω

*a	Component with harness connected (Radio and Display Receiver Assembly)

Standard Voltage:

Tester Connection	Condition	Specified Condition
D196-30 (CA+) - D196-27 (CGND)	Engine switch on (ACC)	5.5 to 7.05 V

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

3.	INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY (V+, GND1)

(a) Reconnect the W30 rear television camera assembly connector.

*a	Component with harness connected (Radio and Display Receiver Assembly)

(b) Using an oscilloscope, check the waveform of the rear television camera assembly.

HINT:

A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the radio and display receiver assembly with the connector connected.

OK:

Waveform is similar to that shown in the illustration.

Item	Content
Measurement terminal	D196-28 (V+) - D195-1 (GND1)
Measurement setting	200 mV/DIV., 50 μs./DIV.
Condition	Engine switch on (IG), shift lever in R

HINT:

The video waveform changes according to the image sent by the rear television camera assembly.
The video waveform is constantly output when the engine switch is on (ACC).

*a	Waveform 1 (camera lens is not covered, displaying an image)
*b	Waveform 2 (camera lens is covered, blacking out the screen)
*c	Synchronization Signal
*d	Video Waveform

REPLACE REAR TELEVISION CAMERA ASSEMBLY

4.	REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

(a) Replace the radio and display receiver assembly with a new or known good one.

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(b) Check that the parking assist monitor system operates normally.

OK:

Parking assist monitor system operates normally.

END

REPLACE REAR TELEVISION CAMERA ASSEMBLY