REAR VIEW MONITOR SYSTEM TERMINALS OF ECU

REAR TELEVISION CAMERA ASSEMBLY

1. 

   Disconnect the m2 rear television camera assembly connector.

2. Measure the voltage of each terminal of the wire harness side connector.

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   m2-6 (CB+) - Body ground	GR - Body ground	Power source	Engine switch on (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 m2 rear television camera assembly connector.

4. Measure the resistance and check for pulses at each terminal of the connector.

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   m2-3 (CV+) - m2-2 (CV-)	B - G	Video signal	Engine switch on (IG) Shift lever in R Camera lens not covered, displaying an image	Pulse generation (Refer to waveform 1)
   			Engine switch on (IG) Shift lever in R Camera lens covered, blacking out the screen	Pulse generation (Refer to waveform 2)
   m2-5 (CGND) - Body ground	BR - Body ground	Camera ground	Always	Below 1 Ω

   Tip:

   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.

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

5. 

   *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

   Reference (Oscilloscope waveform):

   Tip:

   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.

   
   

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

      Item	Content
      Measurement terminal	m2-3 (CV+) - m2-2 (CV-)
      Measurement setting	200 mV/DIV., 50 μs./DIV.
      Condition	Engine switch on (IG), shift lever in R

      Tip:
      

      • 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 turned on (ACC).

   2. Waveform 2 (camera lens is covered, blacking out the screen)

      Item	Content
      Measurement terminal	m2-3 (CV+) - m2-2 (CV-)
      Measurement setting	200 mV/DIV., 50 μs./DIV.
      Condition	Engine switch on (IG), shift lever in R

      Tip:
      

      • 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 turned on (ACC).