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
   
   

   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
   K47-27 (V+) - Body ground	10 kΩ or higher
   K47-28 (V-) - Body ground	10 kΩ or higher

Fig 1: Identifying Multi-Display And Television Camera Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: GO TO Next Step 

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

   Standard voltage 

   VOLTAGE SPECIFICATION
   
   

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

Fig 2: Disconnecting K47 Multi-Display Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE MULTI-DISPLAY 

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
   
   

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

Fig 3: Waveform Graph
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE TELEVISION CAMERA ASSEMBLY 

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