Inspection Procedure

1. Disconnect the K47 display connector.
2. Disconnect the Y8 camera connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   RESISTANCE SPECIFICATION CHART
   
   

   Tester Connection	Specified Condition
   K47-13 (CA+) - Y8-4 (CB+)	Below 1 Ω
   K47-14 (CGND) - Y8-3 (CGND)	Below 1 Ω
   K47-27 (V+) - Y8-2 (CV+)	Below 1 Ω
   K47-28 (V-) - Y8-1 (CV-)	Below 1 Ω
   K47-13 (CA+) - Body ground	10 kΩ or higher
   K47-14 (CGND) - Body ground	10 kΩ or higher
   K47-27 (V+) - Body ground	10 kΩ or higher
   K47-28 (V-) - Body ground	10 kΩ or higher

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 1: Identifying K47 Display Connector And Y8 Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK : Go to next step 

1. Reconnect the K47 display connector.
2. Measure the voltage of the connector.

   Standard voltage 

   VOLTAGE SPECIFICATION CHART
   
   

   Tester Connection	Condition	Specified Condition
   Y8-4 (CB+) - Y8-3 (CGND)	Engine switch on (IG), shift lever in R position	Approx. 6 V

NG : REPLACE MULTI-DISPLAY 

Fig 2: Identifying Multi Display Y8 Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK : Go to next step 

1. Reconnect the Y8 camera connector.
2. Check the waveform of the camera using an oscilloscope.

   OK: 

   Waveform is as shown in the illustration. 

   WAVEFORM REFERENCE CHART
   
   

   Item	Content
   Measurement terminal	CV+(Y8-2) - CV- (Y8-1)
   Measurement setting	0.2 V/DIV., 0.2 μsec./DIV.
   Condition	Engine switch on (IG), shift lever in R position

NG : REPLACE TELEVISION CAMERA ASSEMBLY 

Fig 3: Identifying Y8 Camera Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK : PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN PROBLEM SYMPTOMS TABLE