LIGHTING SYSTEM TERMINALS OF ECU


  1. INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU) [w/ Key Confine Prevention Function]


    1. Disconnect the 13A, 13C, 13E, 13H, 13M, 5K, and H7 instrument panel junction block connectors.

      A01BGWJE02

    2. Measure the voltage and resistance between the wire harness side connectors and body ground.

      Terminal No.

      (Symbol)

      		 Wiring Color Terminal Description Condition Specified Condition
      13A-18 (RRCY) - 13M-7 (GND)*1 W - W-B Rear door courtesy switch RH signal Rear door RH open Below 1 V
      13A-18 (RRCY) - 13M-7 (GND)*1 W - W-B Rear door courtesy switch RH signal Rear door RH closed 11 to 14 V
      13A-24 (RRCY) - 13M-7 (GND) W - W-B*3 Back door courtesy switch signal Back door open Below 1 V
      13A-24 (RRCY) - 13M-7 (GND) W - W-B*3 Back door courtesy switch signal Back door closed 11 to 14 V
      13A-30 (RRCY) - 13M-7 (GND)*1 W - W-B Rear door courtesy switch LH signal Rear door LH open Below 1 V
      13A-30 (RRCY) - 13M-7 (GND)*1 W - W-B Rear door courtesy switch LH signal Rear door LH closed 11 to 14 V
      13F-1 (BECU) - Body ground L - Body ground Battery power supply Always 11 to 14 V
      13E-9 (DIM) - 13M-7 (GND) GR - W-B Headlight dimmer switch signal Headlight dimmer switch in tail position Below 1 V
      13E-9 (DIM) - 13M-7 (GND) GR - W-B Headlight dimmer switch signal Headlight dimmer switch not in high or high flash position 11 to 14 V
      13E-8 (DOMR) - 13M-7 (GND)*2 W - W-B Battery save system (interior light auto cut function) signal Battery save system (interior light auto cut function) not operating Below 1 V
      13E-8 (DOMR) - 13M-7 (GND)*2 W - W-B Battery save system (interior light auto cut function) signal Battery save system (interior light auto cut function) operating 11 to 14 V
      13E-10 (PCTY) - 13M-7 (GND) R - W-B Front passenger side door courtesy switch signal Front passenger side door open Below 1 V
      13E-10 (PCTY) - 13M-7 (GND) R - W-B Front passenger side door courtesy switch signal Front passenger side door closed 11 to 14 V
      13E-11 (DCTY) - 13M-7 (GND) G - W-B Driver side door courtesy switch signal Driver side door open Below 1 V
      13E-11 (DCTY) - 13M-7 (GND) G - W-B Driver side door courtesy switch signal Driver side door closed 11 to 14 V
      13M-7 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      13E-20 (HRLY) - 13M-7 (GND) R - W-B HEAD relay drive signal Headlight dimmer switch off 11 to 14 V
      13E-20 (HRLY) - 13M-7 (GND) R - W-B HEAD relay drive signal Headlight dimmer switch on Below 1 V
      13H-3 (TRLY) - 13M-7 (GND) G - W-B Headlight dimmer switch signal Headlight dimmer switch off 11 to 14 V
      13H-3 (TRLY) - 13M-7 (GND) G - W-B Headlight dimmer switch signal Headlight dimmer switch TAIL Below 1 V
      13K-2 (ILE) - 13M-7 (GND)

      LG - W-B*3

      Y - W-B*4

      		 Map light light signal Map light off using illuminated entry system 11 to 14 V
      13K-2 (ILE) - 13M-7 (GND)

      LG - W-B*3

      Y - W-B*4

      		 Map light light signal Map light on using illuminated entry system Below 1 V
      13H-5 (ILE) - 13M-7 (GND)*5 L - W-B

      Ignition key cylinder light signal*9

      Transponder key light signal*10

      Ignition key cylinder light off using illuminated entry system*9

      Transponder key light off using illuminated entry system*10

      		 11 to 14 V
      13H-5 (ILE) - 13M-7 (GND)*5 L - W-B

      Ignition key cylinder light signal*9

      Transponder key light signal*10

      Ignition key cylinder light on using illuminated entry system*9

      Transponder key light on using illuminated entry system*10

      		 Below 1 V
      H7-10 (CLTB) - 13M-7 (GND)*6 P - W-B Automatic light control sensor signal Always 11 to 14 V
      H7-11 (CLTS) - 13M-7 (GND)*6 B - W-B Automatic light control sensor signal Ignition switch off Below 1 V
      H7-11 (CLTS) - 13M-7 (GND)*1 B - W-B Automatic light control sensor signal

      Ignition switch ON

      Headlight dimmer switch AUTO

      Pulse generation

      (See waveform 1)
      H7-12 (CLTE) - 13M-7 (GND)*6 W - W-B Ground Always Driver side door unlock detection switch signal
      H7-13 (A) - 13M-7 (GND)*6 BE - W-B Headlight dimmer switch signal Headlight dimmer switch off 11 to 14 V
      H7-13 (A) - 13M-7 (GND)*6 BE - W-B Headlight dimmer switch signal Headlight dimmer switch AUTO Below 1 V
      H7-15 (HEAD) - 13M-7 (GND) R - W-B Headlight dimmer switch signal Headlight dimmer switch off 11 to 14 V
      H7-15 (HEAD) - 13M-7 (GND) R - W-B Headlight dimmer switch signal Headlight dimmer switch HEAD Below 1 V
      H7-17 (FFOG) - 13M-7 (GND)*7 P - W-B Front fog light switch input Front fog light switch off 11 to 14 V
      H7-17 (FFOG) - 13M-7 (GND)*7 P - W-B Front fog light switch input Front fog light switch on Below 1 V
      H7-16 (RFOG) - 13M-7 (GND)*8 R - W-B Rear fog light switch input Rear fog light switch off 11 to 14 V
      H7-16 (RFOG) - 13M-7 (GND)*8 R - W-B Rear fog light switch input Rear fog light switch on Below 1 V
      H7-18 (HF) - 13M-7 (GND) B - W-B Headlight dimmer switch high flash signal input Headlight dimmer switch not in high flash position 11 to 14 V
      H7-18 (HF) - 13M-7 (GND) B - W-B Headlight dimmer switch high flash signal input Headlight dimmer switch in high flash position Below 1 V
      H7-19 (HU) - 13M-7 (GND) GR - W-B Headlight dimmer switch high signal input Headlight dimmer switch in low position 11 to 14 V
      H7-19 (HU) - 13M-7 (GND) GR - W-B Headlight dimmer switch high signal input Headlight dimmer switch in high position Below 1 V
      13C-8 (FFGO) - 13M-7 (GND)*7 GR - W-B Front fog light signal output Front fog light switch off 11 to 14 V
      13C-8 (FFGO) - 13M-7 (GND)*7 GR - W-B Front fog light signal output Headlight dimmer switch in tail position and front fog light switch on Below 1 V
      13C-16 (RFGO) - 13M-7 (GND)*8 Y - W-B Rear fog light signal output Rear fog light switch off 11 to 14 V
      13C-16 (RFGO) - 13M-7 (GND)*8 Y - W-B Rear fog light signal output Headlight dimmer switch in tail position and rear fog light switch on Below 1 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

      *1: for 5-Door

      *2: w/ Key Confine Prevention Function

      *3: w/ Personal Light Assembly

      *4: w/o Personal Light Assembly

      *5: w/o Smart Entry and Start System

      *6: w/ Automatic Light Control System

      *7: w/ Front Fog Light

      *8: w/ Rear Fog Light

      *9: w/o Engine Immobiliser System

      *10: w/ Engine Immobiliser System

    3. A01BDLOE01

      Waveform 1

      Item Description
      Terminal H7-11 (CLTS) - 13M-7 (GND)
      Gauge 5 V/DIV, 5 ms/DIV
      Condition Ignition switch ON, Headlight dimmer switch AUTO

      Tech Tips

      If the ambient light becomes brighter, width A becomes narrower.

  2. HEADLIGHT LEVELING ECU ASSEMBLY (for LED Headlight)


    1. Disconnect the A39 headlight leveling ECU connector.

      A01BEYGE36

    2. Measure the voltage and resistance between the wire harness side connectors and body ground.

      Terminal No.

      (Symbol)

      		 Wiring Color Terminal Description Condition Specified Condition
      A39-1 (IG) - A39-9 (E1) B - W-B Ignition power supply Ignition switch off Below 1 V
      A39-1 (IG) - A39-9 (E1) B - W-B Ignition power supply Ignition switch ON 11 to 14 V
      A39-2 (RLEW) - A39-9 (E1) G - W-B LED headlight signal input Headlight dimmer switch off Below 1 V
      A39-2 (RLEW) - A39-9 (E1) G - W-B LED headlight signal input Headlight dimmer switch in head position Pulse generation
      A39-3 (LLEW) - A39-9 (E1) L - W-B LED headlight signal input Headlight dimmer switch off Below 1 V
      A39-3 (LLEW) - A39-9 (E1) L - W-B LED headlight signal input Headlight dimmer switch in head position Pulse generation
      A39-4 (HDLP) - A39-9 (E1) R - W-B Low beam headlight signal input Low beam headlights on Below 1 V
      A39-4 (HDLP) - A39-9 (E1) R - W-B Low beam headlight signal input Low beam headlights off 11 to 14 V
      A39-9 (E1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      A39-10 (RH+) - A39-9 (E1) R - W-B Headlight leveling motor RH power supply Ignition switch off Below 1 V
      A39-10 (RH+) - A39-9 (E1) R - W-B Headlight leveling motor RH power supply Ignition switch ON 11 to 14 V
      A39-11 (LH+) - A39-9 (E1) W - W-B Headlight leveling motor LH power supply Ignition switch off Below 1 V
      A39-11 (LH+) - A39-9 (E1) W - W-B Headlight leveling motor LH power supply Ignition switch ON 11 to 14 V
      A39-12 (SBR) - A39-21 (SGR) BE - G Rear height control sensor power supply Ignition switch off Below 1 V
      A39-12 (SBR) - A39-21 (SGR) BE - G Rear height control sensor power supply Ignition switch ON 4.75 to 5.25 V
      A39-17 (RHT) - A39-9 (E1) V - W-B Headlight leveling motor RH operation signal input With low beam headlights on, vehicle height not changed Below 1 V
      A39-17 (RHT) - A39-9 (E1) V - W-B Headlight leveling motor RH operation signal input With low beam headlights on, vehicle height changed and maintained for more than 3 seconds 1 to 14.4 V
      A39-18 (LHT) - A39-9 (E1) Y - W-B Headlight leveling motor LH operation signal input With low beam headlights on, vehicle height not changed Below 1 V
      A39-18 (LHT) - A39-9 (E1) Y - W-B Headlight leveling motor LH operation signal input With low beam headlights on, vehicle height changed and maintained for more than 3 seconds 1 to 14.4 V
      A39-19 (SHRL) - A39-21 (SGR) L - G Rear height control sensor signal input Ignition switch off Below 1 V
      A39-19 (SHRL) - A39-21 (SGR) L - G Rear height control sensor signal input Ignition switch ON 0.5 to 4.5 V
      A39-21 (SGR) - A39-9 (E1) G - W-B Rear height control sensor ground Always Below 1 Ω
      A39-23 (RH-) - A31-9 (E1) L - W-B Headlight leveling motor RH ground Always Below 1 Ω
      A39-24 (LH-) - A39-9 (E1) LG - W-B Headlight leveling motor LH ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  3. COMBINATION METER ASSEMBLY


    1. Disconnect the H20 and H71 combination meter connectors.

      A01BETPE04

    2. Measure the voltage and resistance between the wire harness side connectors and body ground.

      Terminal No.

      (Symbol)

      		 Wiring Color Terminal Description Condition Specified Condition
      H20-2 (IG+) - Body ground B - Body ground Ignition power supply Ignition switch off Below 1 V
      H20-2 (IG+) - Body ground B - Body ground Ignition power supply Ignition switch ON 11 to 14 V
      H20-21 (E1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      H20-25 (SW) - Body ground GR - Body ground Turn signal switch (right turn or left turn position) signal input

      Ignition switch ON

      Turn signal switch off

      		 11 to 14 V
      H20-25 (SW) - Body ground GR - Body ground Turn signal switch (right turn or left turn position) signal input

      Ignition switch ON

      Turn signal switch in right turn or left turn position

      		 Below 1 V
      H20-26 (ER) - Body ground Y - Body ground Turn signal switch (right turn position) signal input

      Ignition switch ON

      Turn signal switch off

      		 11 to 14 V
      H20-26 (ER) - Body ground Y - Body ground Turn signal switch (right turn position) signal input

      Ignition switch ON

      Turn signal switch in right turn position

      		 Below 1 V
      H20-27 (EL) - Body ground B - Body ground Turn signal switch (left turn position) signal input

      Ignition switch ON

      Turn signal switch off

      		 11 to 14 V
      H20-27 (EL) - Body ground B - Body ground Turn signal switch (left turn position) signal input

      Ignition switch ON

      Turn signal switch in left turn position

      		 Below 1 V
      H20-28 (HAZ) - Body ground W - Body ground Hazard warning switch signal Hazard warning switch off 11 to 14 V
      H20-28 (HAZ) - Body ground W - Body ground Hazard warning switch signal Hazard warning switch on Below 1 V
      H20-38 (DRLE) - Body ground* Y - Body ground Daytime running light system drive output Daytime running light system not operating 11 to 14 V
      H20-38 (DRLE) - Body ground* Y - Body ground Daytime running light system drive output Daytime running light system operating Below 1 V
      H71-1 (B) - Body ground L - Body ground Battery power supply Always 11 to 14 V
      H71-7 (LR) - Body ground R - Body ground RH turn signal light signal output

      Ignition switch ON

      RH turn signal light off

      		 Below 1 V
      H71-7 (LR) - Body ground R - Body ground RH turn signal light signal output

      Ignition switch ON

      RH turn signal light blinking

      		 Below 1 V ←→ 11 to 14 V
      H71-13 (LL) - Body ground L - Body ground LH turn signal light signal output

      Ignition switch ON

      LH turn signal light off

      		 Below 1 V
      H71-13 (LL) - Body ground L - Body ground LH turn signal light signal output

      Ignition switch ON

      LH turn signal light blinking

      		 Below 1 V ←→ 11 to 14 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

      *: w/ Daytime Running Light

  4. CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) [w/ Smart Entry and Start System]


    1. Disconnect the B75 certification ECU connector.

      A01BDZGE04

    2. Measure the voltage and resistance between the wire harness side connectors and body ground.

      Terminal No.

      (Symbol)

      		 Wiring Color Terminal Description Condition Specified Condition
      B75-1 (+B) - Body ground L - Body ground Battery power supply Always 11 to 14 V
      B75-10 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω
      B75-19 (SWIL) - B75-24 (AGND) P - V Engine switch illumination operation signal Engine switch illumination on 11 to 14 V
      B75-19 (SWIL) - B75-24 (AGND) P - V Engine switch illumination operation signal Engine switch illumination off Below 1 V

      If the result is not as specified, there may be a malfunction on the wire harness side.