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LIGHTING SYSTEM TERMINALS OF ECU

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  1. B004WC0C03
    *1 Main Body ECU (Multiplex Network Body ECU) - -

    CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)


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

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    2. Connect the instrument panel junction block assembly 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 None - Body ground Ignition power supply Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V
      A-31 (BECU) - Body ground None - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      A-30 (ACC) - Body ground None - Body ground ACC power supply Power switch on (ACC) 11 to 14 V
      Power switch off Below 1 V
      A-11 (GND1) - Body ground None - Body ground Ground Always Below 1 Ω

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

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G17-21 (LED2) - Body ground LG - Body ground Multi-display (interior illumination light assembly) output Multi-display (interior illumination light assembly) off 11 to 14 V
      Multi-display (interior illumination light assembly) on Below 1 V
      G12-1 (FLCY) - Body ground R - Body ground Front door courtesy light switch assembly LH input Front door LH open Below 1 V
      Front door LH closed 4.7 to 5.3 V
      G12-6 (FRCY) - Body ground

      SB - Body ground*1

      R - Body ground*2

      		 Front door courtesy light switch assembly RH input Front door RH open Below 1 V
      Front door RH closed 4.7 to 5.3 V
      5H-26 (LCTY) - Body ground*1 G - Body ground Rear door courtesy light switch assembly LH input Rear door LH open Below 1 V
      Rear door LH closed 4.7 to 5.3 V
      5A-42 (LCTY) - Body ground*2 G - Body ground Rear door courtesy light switch assembly LH input Rear door LH open Below 1 V
      Rear door LH closed 4.7 to 5.3 V
      5D-19 (RCTY) - Body ground*1 R - Body ground Rear door courtesy light switch assembly RH input Rear door RH open Below 1 V
      Rear door RH closed 4.7 to 5.3 V
      5H-26 (RCTY) - Body ground*2 R - Body ground Rear door courtesy light switch assembly RH input Rear door RH open Below 1 V
      Rear door RH closed 4.7 to 5.3 V
      G12-2 (FLCL) - Body ground V - Body ground Courtesy light assembly (for Front LH Side) output Courtesy light assembly (for front LH side) on Below 1 V
      Courtesy light assembly (for front LH side) off 11 to 14 V
      G12-3 (FRCL) - Body ground G - Body ground Courtesy light assembly (for Front RH Side) output Courtesy light assembly (for front RH side) on Below 1 V
      Courtesy light assembly (for front RH side) off 11 to 14 V
      G13-5 (LCYL) - Body ground L - Body ground Courtesy light assembly (for Rear LH Side) output Courtesy light assembly (for rear LH side) on Below 1 V
      Courtesy light assembly (for rear LH side) off 11 to 14 V
      G13-18 (RCYL) - Body ground LG - Body ground Courtesy light assembly (for Rear RH Side) output Courtesy light assembly (for rear RH side) on Below 1 V
      Courtesy light assembly (for rear RH side) off 11 to 14 V
      5H-31 (LSFL) - Body ground*1 P - Body ground Front door LH unlock detection switch input Front door LH locked Pulse generation
      Front door LH unlocked Below 1 V
      5A-15 (LSFL) - Body ground*2 B - Body ground Front door LH unlock detection switch input Front door LH locked Pulse generation
      Front door LH unlocked Below 1 V
      5D-14 (LSFR) - Body ground*1 GR - Body ground Front door RH unlock detection switch input Front door RH locked Pulse generation
      Front door LH unlocked Below 1 V
      5H-31 (LSFR) - Body ground*2 GR - Body ground Front door RH unlock detection switch input Front door RH locked Pulse generation
      Front door LH unlocked Below 1 V
      5H-21 (LSWL) - Body ground*1 SB - Body ground Rear door LH unlock detection switch input Rear door LH locked Pulse generation
      Rear door LH unlocked Below 1 V
      5D-12 (LSWL) - Body ground*2 B - Body ground Rear door LH unlock detection switch input Rear door LH locked Pulse generation
      Rear door LH unlocked Below 1 V
      G13-20 (LSWR) - Body ground B - Body ground Rear door RH unlock detection switch input Rear door RH locked Pulse generation
      Rear door LH locked Below 1 V
      5A-36 (FSPT) - Body ground SB - Body ground No. 1 interior illumination light assembly (footwell light) output No. 1 interior illumination light assembly (footwell light) off 11 to 14 V
      No. 1 interior illumination light assembly (footwell light) on Below 1 V
      5A-37 (FSPT) - Body ground GR - Body ground No. 2 interior illumination light assembly (footwell light) output No. 2 interior illumination light assembly (footwell light) off 11 to 14 V
      No. 2 interior illumination light assembly (footwell light) on Below 1 V
      5H-30 (FSPT) - Body ground R - Body ground No. 3 interior illumination light assembly (footwell light) output No. 3 interior illumination light assembly (footwell light) off 11 to 14 V
      No. 3 interior illumination light assembly (footwell light) on Below 1 V
      G12-10 (BLIL) - Body ground*3 W - Body ground Rear seat belt buckle illumination light output Rear seat belt buckle illumination light off 11 to 14 V
      Rear seat belt buckle illumination light on Below 1 V
      5D-5 - Body ground LA-G - Body ground Map light sub-assembly power supply DOME CUT D relay off 11 to 14 V
      DOME CUT D relay on Below 1 V
      G12-8 (ACAN) - Body ground Y - Body ground Dimming signal for other system (Output) Power switch on (IG), automatic light control sensor not covered by hand, and light control switch in AUTO position 11 to 14 V
      Power switch on (IG), automatic light control sensor covered by hand, and light control switch in AUTO position Below 1 V
      5A-16 - Body ground*2 LA-G - Body ground Power switch on (IG), light control switch off Power switch on (IG), light control switch TAIL 11 to 14 V
      Power switch on (IG), light control switch off Below 1 V
      5A-17 - Body ground*2 LA-L - Body ground Power switch on (IG), light control switch off Power switch on (IG), light control switch TAIL 11 to 14 V
      Power switch on (IG), light control switch off Below 1 V
      5A-39 - Body ground*1 LA-G - Body ground Taillight signal Power switch on (IG), light control switch TAIL 11 to 14 V
      Power switch on (IG), light control switch off Below 1 V
      5A-40 - Body ground*1 LA-L - Body ground Taillight signal Power switch on (IG), light control switch TAIL 11 to 14 V
      Power switch on (IG), light control switch off Below 1 V
      5H-20 - Body ground LA-G - Body ground Taillight signal Power switch on (IG), light control switch TAIL 11 to 14 V
      Power switch on (IG), light control switch off Below 1 V

      *1: for LHD

      *2: for RHD

      *3: w/o Rear Power Seat System

  2. B004YU6N46

    CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)


    1. Disconnect the G71 certification ECU (smart key ECU assembly) 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
      G71-4 (+B) - Body ground W - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      G71-15 (CUTB)- Body ground P - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      G71-18 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the G71 certification ECU (smart key ECU assembly) connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G71-10 (SWIL) - G71-11 (AGND) P - L Power switch illumination drive output Power switch illumination on 11 to 14 V
      Power switch illumination off Below 1 V
  3. B004RR2N23

    FRONT MULTIPLEX NETWORK DOOR ECU LH


    1. Disconnect the H31 front multiplex network door 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
      H31-4 (CPUB) - Body ground L - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      H31-6 (BDR) - Body ground R - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      H31-3 (SIG) - Body ground B - Body ground Ignition power supply Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V
      H31-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the H31 front multiplex network door ECU LH connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      H31-14 (ILL+) - Body ground G - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      H29-7 (LED+) - H29-20 (LED-) R - L Front door trim board sub-assembly LH (armrest illumination) output Front door trim board sub-assembly LH (armrest illumination) off Below 1 V
      Front door trim board sub-assembly LH (armrest illumination) on 11 to 14 V
      H29-21 (IL1+) - H29-19 (IL1-) W - L Front door trim board sub-assembly LH (ornament illumination) output Front door trim board sub-assembly LH (ornament illumination) off Below 1 V
      Front door trim board sub-assembly LH (ornament illumination) on 11 to 14 V
      H29-15 (IL2-) - Body ground B - Body ground Front door trim board sub-assembly LH (front door inside handle illumination) output Front door trim board sub-assembly LH (front door inside handle illumination) off 11 to 14 V
      Front door trim board sub-assembly LH (front door inside handle illumination) on Below 1 V
  4. B004RR2N22

    FRONT MULTIPLEX NETWORK DOOR ECU RH


    1. Disconnect the H12 front multiplex network door 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
      H12-4 (CPUB) - Body ground L - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      H12-6 (BDR) - Body ground R - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      H12-3 (SIG) - Body ground B - Body ground Ignition power supply Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V
      H12-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the H12 front multiplex network door ECU RH connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      H12-14 (ILL+) - Body ground L - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      H10-7 (LED+) - H10-20 (LED-) R - L Front door trim board sub-assembly RH (armrest illumination) output Front door trim board sub-assembly RH (armrest illumination) off Below 1 V
      Front door trim board sub-assembly RH (armrest illumination) on 11 to 14 V
      H10-21 (IL1+) - H10-19 (IL1-) LG - L Front door trim board sub-assembly RH (ornament illumination) output Front door trim board sub-assembly RH (ornament illumination) off Below 1 V
      Front door trim board sub-assembly RH (ornament illumination) on 11 to 14 V
      H10-15 (IL2-) - Body ground B - Body ground Front door trim board sub-assembly RH (front door inside handle illumination) output Front door trim board sub-assembly RH (front door inside handle illumination) off 11 to 14 V
      Front door trim board sub-assembly RH (front door inside handle illumination) on Below 1 V
  5. B004W3RN04

    REAR MULTIPLEX NETWORK DOOR ECU LH


    1. Disconnect the K21 rear multiplex network door 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
      K21-11 (CPUB) - Body ground L - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      K21-4 (BDR) - Body ground L - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      K21-12 (SIG) - Body ground B - Body ground Ignition power supply Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V
      K21-1 (GND) - Body ground LA - Body ground Ground Always Below 1 Ω

    3. Reconnect the K21 rear multiplex network door ECU LH connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      K21-14 (ILL+) - Body ground GR - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      K20-7 (LED+) - K20-20 (LED-) LG - BE Rear door trim board sub-assembly LH (armrest illumination) output Rear door trim board sub-assembly LH (armrest illumination) off Below 1 V
      Rear door trim board sub-assembly LH (armrest illumination) on 11 to 14 V
      K20-18 (ASH+) - K20-3 (ASH-) P - GR Rear door trim board sub-assembly LH (ornament illumination) output Rear door trim board sub-assembly LH (ornament illumination) off Below 1 V
      Rear door trim board sub-assembly LH (ornament illumination) on 11 to 14 V
      K20-21 (IL2-) - Body ground B - Body ground Rear door trim board sub-assembly LH (rear door inside handle illumination) output Rear door trim board sub-assembly LH (rear door inside handle illumination) off 11 to 14 V
      Rear door trim board sub-assembly LH (rear door inside handle illumination) on Below 1 V
  6. B004W3RN03

    REAR MULTIPLEX NETWORK DOOR ECU RH


    1. Disconnect the K7 rear multiplex network door 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
      K7-11 (CPUB) - Body ground L - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      K7-4 (BDR) - Body ground B - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      K7-12 (SIG) - Body ground L - Body ground Ignition power supply Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V
      K7-1 (GND) - Body ground LA - Body ground Ground Always Below 1 Ω

    3. Reconnect the K7 rear multiplex network door ECU RH connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      K7-14 (ILL+) - Body ground R - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      K6-7 (LED+) - K6-20 (LED-) SB - BE Rear door trim board sub-assembly RH (armrest illumination) output Rear door trim board sub-assembly RH (armrest illumination) off Below 1 V
      Rear door trim board sub-assembly RH (armrest illumination) on 11 to 14 V
      K6-18 (ASH+) - K6-3 (ASH-) LG - L Rear door trim board sub-assembly RH (ornament illumination) output Rear door trim board sub-assembly RH (ornament illumination) off Below 1 V
      Rear door trim board sub-assembly RH (ornament illumination) on 11 to 14 V
      K6-21 (IL2-) - Body ground B - Body ground Rear door trim board sub-assembly RH (rear door inside handle illumination) output Rear door trim board sub-assembly RH (rear door inside handle illumination) off 11 to 14 V
      Rear door trim board sub-assembly RH (rear door inside handle illumination) on Below 1 V
  7. B004WJBN41

    LUGGAGE CLOSER MOTOR ASSEMBLY


    1. Disconnect the L10 luggage closer motor assembly 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
      L10-10 (ECUB) - Body ground LA-L - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      L10-12 (B) - Body ground B - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      L10-8 (IG) - Body ground B - Body ground Ignition power supply Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V
      L10-11 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the L10 luggage closer motor assembly connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      L10-3 (ILL) - Body ground B - Body ground Luggage compartment light output Luggage compartment door open Below 1 V
      Luggage compartment door closed 11 to 14 V
  8. B004X55N02

    POSITION CONTROL ECU ASSEMBLY LH


    1. Disconnect the R40 and R41 position control ECU assembly LH connectors.

    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
      R40-14 (+B1) - Body ground W - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      R40-13 (+B2) - Body ground W - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      R40-12 (+B3) - Body ground W - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      R41-15 (IG) - Body ground LG - Body ground Ignition power supply Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V
      R40-8 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      R40-9 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the R40 and R41 position control ECU assembly LH connectors.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      R41-32 (BCLL) - Body ground L - Body ground Rear seat buckle illumination light LH output Rear seat buckle illumination light LH off Below 1 V
      Rear seat buckle illumination light LH on 11 to 14 V
  9. B004X55N01

    POSITION CONTROL ECU ASSEMBLY RH


    1. Disconnect the R6 and R7 position control ECU assembly RH connectors.

    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
      R6-14 (+B1) - Body ground W - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      R6-13 (+B2) - Body ground W - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      R6-12 (+B3) - Body ground W - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      R7-15 (IG) - Body ground LG - Body ground Ignition power supply Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V
      R6-8 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      R6-9 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the R6 and R7 position control ECU assembly RH connectors.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      R7-32 (BCLL) - Body ground L - Body ground Rear seat buckle illumination light LH output Rear seat buckle illumination light RH off Below 1 V
      Rear seat buckle illumination light RH on 11 to 14 V