Road Sign Assist System Terminals Of Ecu

Engine Hybrid System. Land Cruiser. Urj200, 202 Grj200 Vdj200
Cruise Control. Land Cruiser. Urj200, 202 Grj200 Vdj200

  1. CHECK FORWARD RECOGNITION CAMERA

Road Sign Assist System -- Terminals Of Ecu



CHECK FORWARD RECOGNITION CAMERA

Land Cruiser. Urj200, 202 Grj200 Vdj200.Cruise Control.Cruise Control System.Road Sign Assist System Terminals Of Ecu

  1. Disconnect the R20 forward recognition camera connector.

    NOTICE:
    1. DTCs may be output when connectors are disconnected during inspection. Therefore, be sure to clear the DTCs using the GTS once the inspection has been completed.
    2. Do not apply excessive force to the R20 forward recognition camera connector.

  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
    R20-7 (IGB) - Body ground
    		B - Body ground
    		Power source
    		Engine switch on (IG)
    		11 to 14 V
    Engine switch off
    		Below 1 V
    R20-10 (GND) - Body ground
    		BR - Body ground
    		Ground
    		Always
    		Below 1 Ω
    HINT:
    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the R20 forward recognition camera connector.

  4. Check for pulses according to the value(s) in the table below.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    R20-5 (CA1P) - R20-10 (GND)
    		G - BR
    		CAN communication signal
    		Engine switch on (IG)
    		Pulse generation
    (See waveform 1)
    R20-11 (CA1N) - R20-10 (GND)
    		B - BR
    		CAN communication signal
    		Engine switch on (IG)
    		Pulse generation
    (See waveform 2)
    R20-6 (CANH) - R20-10 (GND)
    		R - BR
    		CAN communication signal
    		Engine switch on (IG)
    		Pulse generation
    (See waveform 1)
    R20-12 (CANL) - R20-10 (GND)
    		P - BR
    		CAN communication signal
    		Engine switch on (IG)
    		Pulse generation
    (See waveform 2)


    5. Land Cruiser. Urj200, 202 Grj200 Vdj200.Cruise Control.Cruise Control System.Road Sign Assist System Terminals Of Ecu

  5. Waveform 1

    1. CAN communication signal

      Item
      		Content
      Tester Connection
      1. R20-5 (CA1P) - R20-10 (GND)
      2. R20-6 (CANH) - R20-10 (GND)
      Tool Setting
      		1 V/DIV., 10 μsec./DIV.
      Condition
      		Engine switch on (IG)
      HINT:
      The waveform varies depending on the CAN communication signal.


    6. Land Cruiser. Urj200, 202 Grj200 Vdj200.Cruise Control.Cruise Control System.Road Sign Assist System Terminals Of Ecu

  6. Waveform 2

    1. CAN communication signal

      Item
      		Content
      Tester Connection
      1. R20-11 (CA1N) - R20-10 (GND)
      2. R20-12 (CANL) - R20-10 (GND)
      Tool Setting
      		1 V/DIV., 10 μsec./DIV.
      Condition
      		Engine switch on (IG)
      HINT:
      The waveform varies depending on the CAN communication signal.