Parking Assist Monitor System Terminals Of Ecu

Body Electrical. Lexus Is250, Is220D. Gse20 Ale20
Park Assist Monitoring. Lexus Is250, Is220D. Gse20 Ale20

  1. TELEVISION CAMERA ASSEMBLY

  1. TELEVISION CAMERA ECU

  1. MULTI-DISPLAY (See page )

Parking Assist Monitor System -- Terminals Of Ecu



TELEVISION CAMERA ASSEMBLY


  1. Disconnect the Q43 camera connector.


    Lexus Is250, Is220D. Gse20 Ale20.Park Assist Monitoring.Clearance Sonar System.Parking Assist Monitor System Terminals Of Ecu

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

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified value
    CGND (Q43-3) - Body ground
    		W - Body ground
    		Ground
    		Always
    		Below 1 Ω
    CB+ (Q43-4) - CGND (Q43-3)
    		B - W
    		Power source
    		Engine SW on (IG), shift lever R position
    		Approx. 6 V
    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the Q43 camera connector.

  4. Measure the voltage and waveform between each terminal of the connector.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified value
    CV+ (Q43-2) - CV- (Q43-1)
    		R - Shielded
    		Display signal
    		Engine SW on (IG), shift lever R position
    		See waveform 1
    If the result is not as specified, the camera may have a malfunction.


    5. Lexus Is250, Is220D. Gse20 Ale20.Park Assist Monitoring.Clearance Sonar System.Parking Assist Monitor System Terminals Of Ecu

  5. Reference:
    Oscilloscope waveform

    1. Waveform 1

      Item
      		Content
      Measurement terminal
      		CV+ - CV-
      Measurement setting
      		0.2 V/DIV., 0.2 μsec./DIV.
      Condition
      		Engine switch on (IG), shift lever reverse position

TELEVISION CAMERA ECU


  1. Disconnect the J92 and J93 connectors.


    Lexus Is250, Is220D. Gse20 Ale20.Park Assist Monitoring.Clearance Sonar System.Parking Assist Monitor System Terminals Of Ecu

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

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified value
    REV (J92-3) - GND1 (J93-8)
    		Y - W-B
    		Reverse signal
    		Engine switch on (IG), shift position is except reverse
    		Below 1 V
    REV (J92-3) - GND1 (J93-8)
    		Y - W-B
    		Reverse signal
    		Engine switch on (IG), shift position is reverse
    		10 to 14 V
    CANL (J92-6) - Body ground
    		W - Body ground
    		CAN control bus
    		Always
    		10 kΩ or higher
    CANH (J92-7) - Body ground
    		L - Body ground
    		CAN control bus
    		Always
    		10 kΩ or higher
    +B (J93-1) - GND1 (J93-8)
    		R - W-B
    		Power source
    		Always
    		10 to 14 V
    IG (J93-3) - GND1 (J93-8)
    		B - W-B
    		IG signal input
    		Engine switch on (IG)
    		10 to 14 V
    ACC (J93-4) - GND1 (J93-8)
    		O - W-B
    		Accessory (ON)
    		Engine switch off
    		Below 1 V
    ACC (J93-4) - GND1 (J93-8)
    		O - W-B
    		Accessory (ON)
    		Engine switch on (ACC)
    		10 to 14 V
    GND1 (J93-8) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 V
    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the J92 and J93 connectors.

  4. Measure the voltage and waveform between each terminal of the connector.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified value
    CV- (J92-19) - GND1 (J93-8)
    		Shielded - W-B
    		Television camera ground (Shielded)
    		Always
    		Below 1 V
    CV+ (J92-20) - GND1 (J93-8)
    		R - W-B
    		Television camera display signal input
    		Engine switch on (IG), shift lever in reverse
    		Pulse generation
    Refer to waveform 1
    TX- (J92-28) - GND1 (J93-8)
    		R - W-B
    		AVC-LAN communication signal
    		Engine switch on (ACC)
    		2 to 3 V
    TX+ (J92-29) - GND1 (J93-8)
    		BR - W-B
    		AVC-LAN communication signal
    		Engine switch on (ACC)
    		2 to 3 V
    CGND (J92-39) - GND1 (J93-8)
    		W - W-B
    		Television camera ground
    		Always
    		Below 1 V
    CB+ (J92-40) - GND1 (J93-8)
    		B - W-B
    		Power source to television camera
    		Engine switch on (IG), shift lever in reverse position
    		Approx. 6 V
    GVI+ (q3-1) - GND1 (J93-8)
    		-
    		Digital image signal (Input)
    		Navigation display is on
    		Pulse generation
    GVI- (q3-2) - GND1 (J93-8)
    		-
    		Digital image signal (Input)
    		Navigation display is on
    		Pulse generation
    GVG1 (q3-3) - Body ground
    		-
    		Ground
    		Always
    		Below 1 V
    GVO+ (w2-1) - GND1 (J93-8)
    		-
    		Digital image signal (Output)
    		Navigation or television camera display is on
    		Pulse generation
    GVO- (w2-2) - GND1 (J93-8)
    		-
    		Digital image signal (Output)
    		Navigation or television camera display is on
    		Pulse generation
    GVG1 (w2-3) - Body ground
    		-
    		Ground
    		Always
    		Below 1 V


    5. Lexus Is250, Is220D. Gse20 Ale20.Park Assist Monitoring.Clearance Sonar System.Parking Assist Monitor System Terminals Of Ecu

  5. Reference:
    Oscilloscope waveform

    1. Waveform 1

      Item
      		Content
      Measurement terminal
      		CV+ - GND1
      Measurement setting
      		0.2 V/DIV., 0.2 μsec./DIV.
      Condition
      		Engine switch on (IG), Shift lever reverse position

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