PARKING ASSIST MONITOR SYSTEM(for Camera built-in ECU) TERMINALS OF ECU

CHECK TELEVISION CAMERA ASSEMBLY

1. 

   Disconnect the c2 television camera assembly.

2. Measure the voltage and resistance according to the value(s) in the table below.

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   c2-6 (CB+) - Body ground	B - Body ground	Power source	Power switch on (ACC)	5.5 to 7.05 V
   c2-5 (CGND) - Body ground	BR - Body ground	Ground	Always	Below 1 Ω

3. Reconnect the c2 television camera assembly connector.

4. Check for pulses between each terminal of the connector.

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   c2-3 (CV+) - c2-2 (CV-)	W - R	Video signal	Power switch on (IG), camera lens not covered, displaying an image	Pulse generation (See waveform 1)
   			Power switch on (IG), camera lens covered, blacking out screen	Pulse generation (See waveform 2)

   Tip:

   A waterproof connector is used for the 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 television camera assembly may have a malfunction.

5. 

   *a	Waveform 1
   *b	Waveform 2
   *c	Synchronized Signal
   *d	Video Waveform

   Reference (Oscilloscope waveform):

   Tip:

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

   1. Waveform 1

      Item	Content
      Terminal No. (Symbol)	c2-3 (CV+) - c2-5 (CGND)
      Tool Setting	200 mV/DIV., 50 μsec./DIV.
      Condition	Power switch on (IG), camera lens not covered, displaying an image

      Tip:

      The video waveform changes according to the image sent by the television camera assembly.

   2. Waveform 2

      Item	Content
      Terminal No. (Symbol)	c2-3 (CV+) - c2-5 (CGND)
      Tool Setting	200 mV/DIV., 50 μsec./DIV.
      Condition	Power switch on (IG), camera lens covered, blacking out screen

      Tip:

      The video waveform changes according to the image sent by the television camera assembly.

CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

1. Check for resistance, voltage and waveform between each terminal of the connector.

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   G143-2 (REV) - G141-7 (GND1)	G - BR	Reverse signal	See "Vehicle Signal Check Mode" in Operation Check w/ Navigation System Click here w/o Navigation System Click here	-
   G159-11 (CA+) - G159-23 (CGND)	B - Shielded	Television camera assembly power supply	Power switch on (ACC)	5.5 to 7.05 V
   G159-12 (V+) - G159-23 (CGND)	W - Shielded	Video signal	Power switch on (IG), camera lens not covered, displaying an image	Pulse generation (See waveform 1)
   			Power switch on (IG), camera lens covered, blacking out screen	Pulse generation (See waveform 2)
   G159-24 (V-) - G159-23 (CGND)	R - Shielded	Ground	Always	Below 1 Ω

   Tip:

   A waterproof connector is used for the 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 television camera assembly may have a malfunction.

2. 

   *a	Waveform 1
   *b	Waveform 2
   *c	Synchronized Signal
   *d	Video Waveform

   Reference (Oscilloscope waveform):

   Tip:

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

   1. Waveform

      Item	Content
      Terminal No. (Symbol)	G159-12 (V+) - G159-23 (CGND)
      Tool Setting	200 mV/DIV., 50 μsec./DIV.
      Condition	Waveform 1: Power switch on (IG), camera lens not covered, displaying an image Waveform 2: Power switch on (IG), camera lens covered, blacking out the screen

      Tip:

      The video waveform changes according to the image sent by the television camera assembly.