Terminals Of Ecu [12/2019 - 10/2022]

Fig 1: Rear Television Camera Assembly [12/2019 - 10/2022]

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the W15 rear television camera assembly connector.
2. Measure the voltage on the wire harness side connector according to the value(s) in the table below.

   Terminal No. (Symbol)	Terminal Description	Switch Condition	Specified Condition
   W15-6 (CB+) - Body ground	Power source	Ignition switch ACC	5.5 to 7.05 V

   If the result is not as specified, there may be a malfunction on the wire harness side.

3. Reconnect the W15 rear television camera assembly connector.
4. Measure the resistance and check for pulses at each terminal of the connector.

   Terminal No. (Symbol)	Terminal Description	Condition	Specified Condition
   W15-3 (CV+) - W15-2 (CV-)	Video signal	Ignition switch ON Shift position in R Camera lens not covered, displaying image	Pulse generation (Refer to waveform 1)
   		Ignition switch ON Shift position in R Camera lens covered, blacking out screen	Pulse generation (Refer to waveform 2)
   W15-5 (CGND) - Body ground	Camera ground	Always	Below 1 Ω

   If the result is not as specified, the rear television camera assembly may be malfunctioning.

5. Reference (Oscilloscope waveform):

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   1. Waveform 1 (camera lens is not covered, displaying an image)

      Item	Content
      Measurement terminal	W15-3 (CV+) - W15-2 (CV-)
      Measurement setting	200 mV/DIV., 50 μs./DIV.
      Condition	Ignition switch ON, shift position in R, camera lens not covered, displaying image

      HINT: 

      • The video waveform changes according to the image sent by the rear television camera assembly.
      • The video waveform is constantly output when the ignition switch is ACC.
   2. Waveform 2 (camera lens is covered, blacking out the screen)

      Item	Content
      Measurement terminal	W15-3 (CV+) - W15-2 (CV-)
      Measurement setting	200 mV/DIV., 50 μs./DIV.
      Condition	Ignition switch ON, shift position in R, camera lens covered, blacking out screen

      HINT: 

      • The video waveform changes according to the image sent by the rear television camera assembly.
      • The video waveform is constantly output when the ignition switch is ACC.

w/ Navigation System:

Refer to TERMINALS OF ECU [12/2019 - 10/2022]

w/ Audio and Visual System:

Refer to TERMINALS OF ECU [12/2019 - 10/2022]