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

CHECK TELEVISION CAMERA ASSEMBLY

1. 

   Disconnect the U22 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
   U22-6 (CB+) - Body ground	B - Body ground	Power source	Ignition switch ACC	5.5 to 7.05 V
   U22-5 (CGND) - Body ground	BR - Body ground	Ground	Always	Below 1 Ω

3. Reconnect the U22 television camera assembly connector.

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

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   U22-3 (CV+) - U22-2 (CV-)	W - R	Video signal	Ignition switch ON, camera lens not covered, displaying an image	Pulse generation (See waveform 1)
   			Ignition switch ON, 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 navigation receiver assembly*1 or radio and display receiver assembly*2 with the connector connected. If the result is not as specified, the television camera assembly may have a malfunction.

   • *1: for Navigation Receiver Type

   • *2: for Radio and Display Type

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 navigation receiver assembly*1 or radio and display receiver assembly*2 with the connector connected.

   • *1: for Navigation Receiver Type

   • *2: for Radio and Display Type

   1. Waveform 1

      Item	Content
      Terminal No. (Symbol)	U22-3 (CV+) - U22-5 (CGND)
      Tool Setting	200 mV/DIV., 50 μsec./DIV.
      Condition	Ignition switch ON, 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)	U22-3 (CV+) - U22-5 (CGND)
      Tool Setting	200 mV/DIV., 50 μsec./DIV.
      Condition	Ignition switch ON, camera lens covered, blacking out screen

      Tip:

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

CHECK NAVIGATION RECEIVER ASSEMBLY (for Navigation Receiver Type)

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

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   G139-2 (REV) - G137-7 (GND1)	BE - BR	Reverse signal	See "Vehicle Signal Check Mode" in Operation Check Click hereClick hereClick here	-
   G158-11 (CA+) - G158-23 (CGND)	B - Shielded	Television camera assembly power supply	Ignition switch ACC	5.5 to 7.05 V
   G158-12 (V+) - G158-23 (CGND)	W - Shielded	Video signal	Ignition switch ON, camera lens not covered, displaying an image	Pulse generation (See waveform 1)
   			Ignition switch ON, camera lens covered, blacking out screen	Pulse generation (See waveform 2)
   G158-24 (V-) - G158-23 (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 navigation 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 navigation receiver assembly with the connector connected.

   1. Waveform

      Item	Content
      Terminal No. (Symbol)	G158-12 (V+) - G158-23 (CGND)
      Tool Setting	200 mV/DIV., 50 μsec./DIV.
      Condition	Waveform 1: Ignition switch ON, camera lens not covered, displaying an image Waveform 2: Ignition switch ON, camera lens covered, blacking out the screen

      Tip:

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

CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY (for Radio and Display Type)

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)	BE - BR	Reverse signal	See "Vehicle Signal Check Mode" in Operation Check Click hereClick here	-
   G159-11 (CA+) - G159-23 (CGND)	B - Shielded	Television camera assembly power supply	Ignition switch ACC	5.5 to 7.05 V
   G159-12 (V+) - G159-23 (CGND)	W - Shielded	Video signal	Ignition switch ON, camera lens not covered, displaying an image	Pulse generation (See waveform 1)
   			Ignition switch ON, 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: Ignition switch ON, camera lens not covered, displaying an image Waveform 2: Ignition switch ON, camera lens covered, blacking out the screen

      Tip:

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