Lighting System Terminals Of Ecu

  1. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY, MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Lighting System -- Terminals Of Ecu



CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY, MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Lighting (Int).Lighting System.Lighting System Terminals Of Ecu


Text in Illustration
*A
for LHD
*B
for RHD
*1
Main body ECU (multiplex network body ECU)
-
-

  1. Remove the main body ECU (LandCruiser RM000003WBO05FX.html).

  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
    A-29 (ACC) - Body ground
    		-
    		ACC power supply
    		Ignition switch ACC
    		11 to 14 V
    A-30 (BECU) - Body ground
    		-
    		Battery power supply
    		Always
    		11 to 14 V
    A-32 (IG) - Body ground
    		-
    		Ignition power supply
    		Ignition switch ON
    		11 to 14 V
    A-11 (GND1) - Body ground
    		-
    		Ground
    		Always
    		Below 1 Ω
    G63-3 (GND2) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Install the main body ECU (LandCruiser RM000003WBM05CX.html).



  4. Measure the voltage according to the value(s) in the table below.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    G63-4 (OILE) - 2D-4 (GND1)*3
    		W - W-B
    		Side step light signal output
    		Side step light on
    		11 to 14 V
    Side step light off
    		Below 1 V
    G63-5 (ILUP) - 2D-4 (GND1)*5
    		L - W-B
    		Room light switch up signal
    		Room light switch up
    		Below 1 V
    Room light switch off
    		11 to 14 V
    2D-13 (ILDN) - 2D-4 (GND1)*5
    		B - W-B
    		Room light switch down signal
    		Room light switch down
    		Below 1 V
    Room light switch off
    		11 to 14 V
    G64-1 (GCTY) - 2D-4 (GND1)*6
    		V - W-B
    		Glass hatch courtesy light switch signal
    		Glass hatch open
    		Below 1 V
    Glass hatch closed
    		Pulse generation
    (See waveform 1 or 2)
    G64-2 (DOMR) - 2D-4 (GND1)
    		GR - W-B
    		Battery saving control (interior light auto cut function) signal
    		Battery saving control (interior light auto cut function) not operating
    		Below 1 V
    Battery saving control (interior light auto cut function) operating
    		11 to 14 V
    G64-6 (RCTY) - 2D-4 (GND1)
    		R - W-B
    		Rear door courtesy light switch RH signal
    		Rear door RH open
    		Below 1 V
    Rear door RH closed
    		11 to 14 V
    G64-19 (BCTY) - 2D-4 (GND1)
    		G - W-B
    		Back door courtesy light switch signal
    		Back door open
    		Below 1 V
    Back door closed
    		Pulse generation
    (See waveform 3 or 4)
    G65-2 (OSPT) - 2D-4 (GND1)*5
    		SB - W-B
    		Front door illumination signal
    		Front door illumination on
    		Below 1 V
    Front door illumination off
    		11 to 14 V
    G65-3 (LCTY) - 2D-4 (GND1)
    		V - W-B
    		Rear door courtesy light switch LH signal
    		Rear door LH open
    		Below 1 V
    Rear door LH closed
    		11 to 14 V
    G65-5 (CSPT) - 2D-4 (GND1)
    		GR - W-B
    		Center console spot light signal
    		Ignition switch off
    		11 to 14 V
    Ignition switch ON or ACC
    		Below 1 V
    G65-6 (TSPT) - 2D-4 (GND1)*5
    		SB - W-B
    		Rear door illumination signal
    		Rear door illumination on
    		Below 1 V
    Rear door illumination off
    		11 to 14 V
    2D-15 (FRCY) - 2D-4 (GND1)*1
    2H-26 (FRCY) - 2D-4 (GND1)*2
    		B - W-B
    		Front door courtesy light switch RH signal
    		Front door RH open
    		Below 1 V
    Front door RH closed
    		11 to 14 V
    2D-18 (ILE) - 2D-4 (GND1)
    		G - W-B
    		Interior light signal
    		Interior light on
    		Below 1 V
    Interior light off
    		11 to 14 V
    2D-36 (FSPT) - 2D-4 (GND1)*4
    		SB - W-B
    		Interior foot light signal
    		Interior foot light on
    		Below 1 V
    Interior foot light off
    		11 to 14 V
    2I-27 (FLCY) - 2D-4 (GND1)*1
    2D-31 (FLCY) - 2D-4 (GND1)*2
    		R - W-B
    		Front door courtesy light switch LH signal
    		Front door LH open
    		Below 1 V
    Front door LH closed
    		11 to 14 V
    1. *1: for LHD
    2. *2: for RHD
    3. *3: w/ Side Step Light
    4. *4: w/ Interior Foot Light
    5. *5: w/ Door Illumination
    6. *6: w/ Glass Hatch Opener System
    If the result is not as specified, the main body ECU may have a malfunction.


      Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Lighting (Int).Lighting System.Lighting System Terminals Of Ecu

    1. Waveform 1

      Item
      		Content
      Terminal No. (Symbol)
      		G64-1 (GCTY) - 2D-4 (GND1)
      Tool setting
      		5 V/DIV., 20 ms./DIV.
      Condition
      		Glass hatch closed


      2. Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Lighting (Int).Lighting System.Lighting System Terminals Of Ecu

    2. Waveform 2

      Item
      		Content
      Terminal No. (Symbol)
      		G64-1 (GCTY) - 2D-4 (GND1)
      Tool setting
      		5 V/DIV., 20 ms./DIV.
      Condition
      		Glass hatch closed


      3. Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Lighting (Int).Lighting System.Lighting System Terminals Of Ecu

    3. Waveform 3

      Item
      		Content
      Terminal No. (Symbol)
      		G64-19 (BCTY) - 2D-4 (GND1)
      Tool setting
      		5 V/DIV., 20 ms./DIV.
      Condition
      		Back door closed


      4. Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Lighting (Int).Lighting System.Lighting System Terminals Of Ecu

    4. Waveform 4

      Item
      		Content
      Terminal No. (Symbol)
      		G64-19 (BCTY) - 2D-4 (GND1)
      Tool setting
      		5 V/DIV., 20 ms./DIV.
      Condition
      		Back door closed