LIGHTING SYSTEM TERMINALS OF ECU


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

    B006N0YC06
    *A Main Body ECU (Multiplex Network Body ECU) with 2 Connectors - -
    *1 Main Body ECU (Multiplex Network Body ECU) - -
    B006OZRC08
    *A Main Body ECU (Multiplex Network Body ECU) with 3 Connectors - -
    *1 Main Body ECU (Multiplex Network Body ECU) - -

    1. Remove the main body ECU (multiplex network body ECU) from the junction block assembly LH.

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    2. Connect the junction block assembly LH connectors.

    3. 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-32 (IG) - Body ground - Ignition power supply Engine switch on (IG) 11 to 14 V
      Engine switch off Below 1 V
      A-31 (BECU) - Body ground - Battery power supply Always 11 to 14 V
      A-30 (ACC) - Body ground - ACC power supply Engine switch on (ACC) 11 to 14 V
      Engine switch off Below 1 V
      A-11 (GND1) - Body ground - Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction in the wire harness or junction block assembly LH.

    4. Install the main body ECU (multiplex network body ECU).

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    5. Measure the voltage, resistance and pulse according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G63-6 (FLCY) - Body ground GR - Body ground Front door courtesy light switch LH signal Front door LH open Below 1 V
      Front door LH closed Pulse generation
      G63-27 (FRCY) - Body ground L - Body ground Front door courtesy light switch RH signal Front door RH open Below 1 V
      Front door RH closed Pulse generation
      G62-2 (LSWR) - Body ground V - Body ground Slide door unlock detection switch RH signal Slide door RH unlocked Below 1 V
      Engine switch off, all doors closed and slide door RH locked Pulse generation
      4A-38 (LSFR) - Body ground Y - Body ground Front door unlock detection switch RH signal Front door RH unlocked Below 1 V
      Engine switch off, all doors closed and front door RH locked Pulse generation
      4D-18 (RCTY) - Body ground LG - Body ground Slide door courtesy light switch RH signal Slide door RH open Below 1 V
      Slide door RH closed Pulse generation
      4H-35 (LSWL) - Body ground SB - Body ground Slide door unlock detection switch LH signal Slide door LH unlocked Below 1 V
      Engine switch off, all doors closed and slide door LH locked Pulse generation
      4H-23 (LCTY) - Body ground L - Body ground Slide door courtesy light switch LH signal Slide door LH open Below 1 V
      Slide door LH closed Pulse generation
      4H-22 (LSFL) - Body ground SB - Body ground Front door unlock detection switch LH signal Front door LH unlocked Below 1 V
      Engine switch off, all doors closed and front door LH locked Pulse generation
      4H-36 (LGCY) - Body ground L - Body ground Back door courtesy light switch signal Back door open Below 1 V
      Back door closed Pulse generation
      4A-27 (DOMR) - Body ground R - Body ground Battery saving control (interior light auto cut function) signal Battery saving control (interior light auto cut function) operating Below 1 V
      Battery saving control (interior light auto cut function) not operating 11 to 14 V
      4D-14 (ILE) - Body ground W - Body ground Map light and spot light signal Battery saving control (interior light auto cut function) not operating, map light and spot light on using illuminated entry system Below 1 V
      Battery saving control (interior light auto cut function) not operating, map light and spot light off using illuminated entry system 11 to 14 V
      4D-25 (FSPT) - Body ground SB - Body ground Interior illumination light LH signal Interior illumination LH light on Below 1 V
      Interior illumination LH light off 11 to 14 V
      4D-26 (FSPT) - Body ground R - Body ground Interior illumination light RH signal Interior illumination RH light on Below 1 V
      Interior illumination RH light off 11 to 14 V
      G62-1 (FLCL) - Body ground*1 LA-B - Body ground Courtesy light assembly LH signal Battery saving control (interior light auto cut function) not operating, map light and spot light on using illuminated entry system Below 1 V
      Battery saving control (interior light auto cut function) not operating, map light and spot light off using illuminated entry system 11 to 14 V
      G62-17 (FRCL) - Body ground*1 W - Body ground Courtesy light assembly RH signal Battery saving control (interior light auto cut function) not operating, map light and spot light on using illuminated entry system Below 1 V
      Battery saving control (interior light auto cut function) not operating, map light and spot light off using illuminated entry system 11 to 14 V
      G62-27 (DMDR) - Body ground*2 R - Body ground Ground Always Below 1 Ω
      G62-27 (DMDR) - Body ground*3 R - Body ground Map light assembly (Door switch) signal input Map light assembly (Door switch) off 11 to 14 V
      Map light assembly (Door switch) on Below 1 V
      G62-28 (DMON) - Body ground*3 P - Body ground Map light assembly (Dome switch) signal input Map light assembly (Dome switch) on Below 1 V
      Map light assembly (Dome switch) off Pulse generation

      *1: w/ Courtesy Light

      *2: for Bulb Type

      *3: for LED Type

  2. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    B006OMYE23

    1. Disconnect the G22 certification ECU 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
      G22-10 (+B) - Body ground GR - Body ground Battery power supply Always 11 to 14 V
      G22-11 (E) - 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. Reconnect the G22 certification ECU connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G22-17 (SWIL) - G22-12 (AGND) P - W Engine switch illumination operation signal Engine switch illumination on 11 to 14 V
      Engine switch illumination off Below 1 V

  3. CHECK ROOM LIGHT CONTROL RELAY

    B006NY5E01

    1. Measure the voltage, pulse and resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      S30-2 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω
      S30-3 (+) - Body ground*1, *3 W - Body ground Spot light assembly RH signal Spot light assembly RH on Below 1 Ω
      Spot light assembly RH off 10 kΩ or higher
      S30-4 (ECUB1) - Body ground SB - Body ground Battery power supply Always 11 to 14 V
      S30-5 (SW) - Body ground*1, *3 P - Body ground Spot light assembly LH signal Spot light assembly LH on Below 1 Ω
      Spot light assembly LH off 10 kΩ or higher
      S30-6 (SW) - Body ground P - Body ground Integration control and panel assembly (dimmer switch) signal Integration control and panel assembly (dimmer switch) on Below 1 Ω
      Integration control and panel assembly (dimmer switch) off 10 kΩ or higher
      S30-7 (UP) - Body ground B - Body ground Integration control and panel assembly (color select up switch) signal Integration control and panel assembly (color select up switch) on Below 1 Ω
      Integration control and panel assembly (color select up switch) off 10 kΩ or higher
      S30-8 (DOWN) - Body ground W - Body ground Integration control and panel assembly (color select down switch) signal Integration control and panel assembly (color select down switch) on Below 1 Ω
      Integration control and panel assembly (color select down switch) off 10 kΩ or higher
      S30-12 (+) - Body ground*1, *2 B - Body ground Spot light assembly RH signal Spot light assembly RH on Below 1 Ω
      Spot light assembly RH off 10 kΩ or higher
      S30-13 (SW) - Body ground*1, *2 V - Body ground Spot light assembly LH signal Spot light assembly LH on Below 1 Ω
      Spot light assembly LH off 10 kΩ or higher
      S30-21 (PLCK) - Body ground*1, *3 R - Body ground Spot light assembly RH signal Spot light assembly RH on Below 1 V
      Spot light assembly RH off 11 to 14 V
      Spot light assembly RH off→Spot light assembly RH operated 2 or 3 times Pulse generation
      S30-22 (FCTY) - Body ground*1, *2 GR - Body ground Spot light assembly RH signal Spot light assembly RH on Below 1 V
      Spot light assembly RH off 11 to 14 V
      Spot light assembly RH off→Spot light assembly RH operated 2 or 3 times Pulse generation
      S30-23 (RRLC) - Body ground*1, *3 SB - Body ground Spot light assembly LH signal Spot light assembly LH on Below 1 V
      Spot light assembly LH off 11 to 14 V
      Spot light assembly LH off→Spot light assembly LH operated 2 or 3 times Pulse generation
      S30-24 (RLLC) - Body ground*1, *2 L - Body ground Spot light assembly LH signal Spot light assembly LH on Below 1 V
      Spot light assembly LH off 11 to 14 V
      Spot light assembly LH off→Spot light assembly LH operated 2 or 3 times Pulse generation

      *1: for LED Type

      *2: for Rear No. 1 Seat

      *3: for Rear No. 2 Seat

    2. Measure the voltage and pulse according to the value(s) in the table below using active test.

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      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      S30-14 (ILBR) - Body ground L - Body ground Interior illumination light sub-assembly signal Active Test "Color LED (Blue)" is "ON" 11 to 14 V
      Active Test "Color LED (Blue)" is "OFF" Below 1 V
      Active Test "Color LED (Blue) Modulated Light" is "ON" Pulse generation
      S30-15 (ILBL) - Body ground L - Body ground Interior illumination light sub-assembly signal Active Test "Color LED (Blue)" is "ON" 11 to 14 V
      Active Test "Color LED (Blue)" is "OFF" Below 1 V
      Active Test "Color LED (Blue) Modulated Light" is "ON" Pulse generation
      S30-16 (ILRR) - Body ground R - Body ground Interior illumination light sub-assembly signal Active Test "Color LED (Yellow)" is "ON" 11 to 14 V
      Active Test "Color LED (Yellow)" is "OFF" Below 1 V
      Active Test "Color LED (Yellow) Modulated Light" is "ON" Pulse generation
      S30-17 (ILRL) - Body ground R - Body ground Interior illumination light sub-assembly signal Active Test "Color LED (Yellow)" is "ON" 11 to 14 V
      Active Test "Color LED (Yellow)" is "OFF" Below 1 V
      Active Test "Color LED (Yellow) Modulated Light" is "ON" Pulse generation
      S30-18 (ILGR) - Body ground G - Body ground Interior illumination light sub-assembly signal Active Test "Color LED (Green)" is "ON" 11 to 14 V
      Active Test "Color LED (Green)" is "OFF" Below 1 V
      Active Test "Color LED (Green) Modulated Light" is "ON" Pulse generation
      S30-19 (ILGL) - Body ground G - Body ground Interior illumination light sub-assembly signal Active Test "Color LED (Green)" is "ON" 11 to 14 V
      Active Test "Color LED (Green)" is "OFF" Below 1 V
      Active Test "Color LED (Green) Modulated Light" is "ON" Pulse generation

  4. REAR SEAT CLIMATE CONTROL ECU LH (w/ Reading Light)

    B006P8RE03

    1. Disconnect the Y24 rear seat climate control ECU LH 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
      Y24-13 (+B) - Body ground P - Body ground Battery power supply Always 11 to 14 V
      Y24-12 (IG) - Body ground B - Body ground Ignition power supply Engine switch off Below 1 V
      Engine switch on (IG) 11 to 14 V
      Y24-3 (GND) - Body ground W - Body ground Ground Always Below 1 Ω

    3. Reconnect the Y24 rear seat climate control ECU LH connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      Y24-9 (RSWM) - Body ground GR - Body ground Rear power seat switch LH (main switch) signal Rear power seat switch LH (main switch) on Below 1 V
      Rear power seat switch LH (main switch) off 11 to 14 V
      Y24-22 (RSWU) - Body ground R - Body ground Rear power seat switch LH (up switch) signal Rear power seat switch LH (up switch) on Below 1 V
      Rear power seat switch LH (up switch) off 11 to 14 V
      Y24-23 (RSWD) - Body ground BE - Body ground Rear power seat switch LH (down switch) signal Rear power seat switch LH (down switch) on Below 1 V
      Rear power seat switch LH (down switch) off 11 to 14 V
      Y24-25 (RDLP) - Body ground P - Body ground No. 2 spot light assembly LH signal No. 2 spot light assembly LH on 11 to 14 V
      No. 2 spot light assembly LH off Below 1 V
      No. 2 spot light assembly LH on and rear power seat switch LH (up or dome switch) on Pulse generation

  5. REAR SEAT CLIMATE CONTROL ECU RH (w/ Reading Light)

    B006P8RE02

    1. Disconnect the Y4 rear seat climate control ECU RH 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
      Y4-13 (+B) - Body ground P - Body ground Battery power supply Always 11 to 14 V
      Y4-12 (IG) - Body ground B - Body ground Ignition power supply Engine switch off Below 1 V
      Engine switch on (IG) 11 to 14 V
      Y4-3 (GND) - Body ground W - Body ground Ground Always Below 1 Ω

    3. Reconnect the Y4 rear seat climate control ECU RH connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      Y4-9 (RSWM) - Body ground GR - Body ground Rear power seat switch RH (main switch) signal Rear power seat switch RH (main switch) on Below 1 V
      Rear power seat switch RH (main switch) off 11 to 14 V
      Y4-22 (RSWU) - Body ground R - Body ground Rear power seat switch RH (up switch) signal Rear power seat switch RH (up switch) on Below 1 V
      Rear power seat switch RH (up switch) off 11 to 14 V
      Y4-23 (RSWD) - Body ground BE - Body ground Rear power seat switch RH (down switch) signal Rear power seat switch RH (down switch) on Below 1 V
      Rear power seat switch RH (down switch) off 11 to 14 V
      Y4-25 (RDLP) - Body ground P - Body ground No. 2 spot light assembly RH signal No. 2 spot light assembly RH on 11 to 14 V
      No. 2 spot light assembly RH off Below 1 V
      No. 2 spot light assembly RH on and rear power seat switch RH (up or down switch) on Pulse generation