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Terminals Of Ecu

WARNING: This page is about a different car, the 2006 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
  1. Multiplex Network Body Computer 
    Fig 1: Identifying Terminals Of ECU
    G04337478Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMINALS OF ECU REFERENCE TABLE

    Terminal No. (Symbols) Wiring color Condition Specified condition
    1H-2 <==> Body ground (GND1 <==> Body ground) - Constant Below 1 V
    1K-15, 1L-16 <==> 1H-2 (LSR <==> GND1, 2) - Rear door lock switch is unlock position Below 1 V
    - - Rear door lock switch is lock position 10 - 14 V
    1C-2 <==> 1H-2 (SIG <==> GND1, 2) - Ignition switch is OFF Below 1 V
    Ignition switch is ON 10 - 14 V
    1B-4 <==> 1H-2 (BECU <==> GND1, 2) - Constant 10 - 14 V
    1A-8, 1K-9 <==> 1H-2 (ILE <==> GND1, 2) - Key cylinder illumination, room lamp is OFF Below 1 V
    Key cylinder illumination, room lamp is ON 10 - 14 V
    1H-2 <==> Body ground (GND2 <==> Body ground) - Constant Below 1 V
    1B-8 <==> 1H-2 (HRLY <==> GND1, 2) - Ignition switch is ON and combination switch is OFF Below 1 V
    Ignition switch is ON and combination switch is HEAD 10 - 14 V
    1C-1 <==> 1H-2 (TRLY <==> GND1, 2) - Ignition switch is ON and combination switch is OFF Below 1 V
    Ignition switch is ON and combination switch is TAIL 10 - 14 V
    1D-5 <==> 1H-2 (ACC <==> GND1, 2) - Ignition switch is OFF Below 1 V
    Ignition switch is ON 10 - 14 V
    B4-3 <==> 1H-2 (LMRY <==> GND1, 2) R <==> - Ignition switch is OFF Below 1 V
    Ignition switch is ON 10 - 14 V
    B4-7 <==> 1H-2 (DRL <==> GND1, 2) LG-R <==> - Ignition switch is OFF Below 1 V
    Ignition switch is ON 10 - 14 V
    B4-21 <==> 1H-2 (LSWD <==> GND1, 2) W-R <==> - Front LH door lock switch is unlock position Below 1 V
    Front LH door lock switch is lock position 10 - 14 V
    B4-23 <==> 1H-2 (MPX2 <==> GND1, 2) BR-R <==> - Constant Signal waveform
    B4-25 <==> 1H-2 (PCYL <==> GND1, 2) Y <==> - Front RH courtesy lamp is OFF 10 - 14 V
    Front RH courtesy lamp is ON Below 1 V
    B4-26 <==> 1H-2 (DCYL <==> GND1, 2) W-G <==> - Front LH courtesy lamp is OFF 10 - 14 V
    Front LH courtesy lamp is ON Below 1 V
    B4-30 <==> 1H-2 (LSWP <==> GND1, 2) B-W <==> - Front RH door lock switch is unlock position Below 1 V
    Front RH door lock switch is lock position 10 - 14 V
    B5-6 <==> 1H-2 (LP <==> GND1, 2) W-R <==> - Side step lamp is OFF Below 1 V
    Side step lamp is ON 10 - 14 V
    B5-11 <==> 1H-2 (RLCY <==> GND1, 2) P-B <==> - Rear LH door is closed 10 - 14 V
    Rear LH door is open Below 1 V
    B5-12 <==> 1H-2 (RRCY <==> GND1, 2) P-L <==> - Rear RH door is closed 10 - 14 V
    Rear RH door is open Below 1 V
    B5-21 <==> 1H-2 (LCYL <==> GND1, 2) P-G <==> - Rear LH courtesy lamp is OFF 10 - 14 V
    Rear LH courtesy lamp is ON Below 1 V
    B5-22 <==> 1H-2 (RCYL <==> GND1, 2) L-R <==> - Rear RH courtesy lamp is OFF 10 - 14 V
    Rear RH courtesy lamp is ON Below 1 V
    B5-23 <==> 1H-2 (DCTY <==> GND1, 2) R-B <==> - Front LH door is closed 10 - 14 V
    Front LH door is open Below 1 V
    B5-24 <==> 1H-2 (PCTY <==> GND1, 2) R-Y <==> - Front RH door is closed 10 - 14 V
    Front RH door is open Below 1 V
    B6-1 <==> 1H-2 (HEAD <==> GND1, 2) R <==> - Ignition switch is ON and combination switch is OFF 10 - 14 V
    Ignition switch is ON and combination switch is ON Below 1 V
    B6-3 <==> 1H-2 (A <==> GND1, 2) G-O <==> - Ignition switch is ON and combination switch is OFF 10 - 14 V
    Ignition switch is ON and combination switch is AUTO Below 1 V
    B6-4 <==> 1H-2 (CLTS <==> GND1, 2) Y <==> - Cover the sensor with hand <==> Stop covering Signal waveform
    B6-6 <==> 1H-2 (CLTB <==> GND1, 2) L-Y <==> - Ignition switch is OFF Below 1 V
    Ignition switch is ON 10 - 14 V
    B6-8 <==> 1H-2 (TAIL <==> GND1, 2) G <==> - Ignition switch is ON and combination switch is OFF 10 - 14 V
    Ignition switch is ON and combination switch is TAIL Below 1 V
    B6-21 <==> 1H-2 (CLTE <==> GND1, 2) G-W <==> - Constant Below 1 V
  2. Multiplex Network Door ECU: 
    Fig 2: Identifying Multiplex Network Door ECU Connector
    G04337479Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    MULTIPLEX NETWORK DOOR ECU REFERENCE TABLE

    Terminal No. (Symbols) Wiring Color Condition STD Voltage (V)
    B8-1 <==> B8-3 (MPX2 <==> GND) R <==> W-B Constant Signal waveform
    B8-3 <==> Body ground (GND <==> Body ground) W-B <==> - Constant Below 1 V
    B8-4 <==> B8-3 (BDR <==> GND) L <==> W-B Constant 10 - 14 V
    B8-5 <==> B8-3 (BECU <==> GND) L-R <==> W-B Constant 10 - 14 V
    B8-6 <==> B8-3 (SIG <==> GND) B <==> W-B Ignition switch is OFF Below 1 V
    Ignition switch is ON 10 - 14 V
    B9-7 <==> B8-3 (FULL <==> GND) G-Y <==> W-B Backdoor is closed 10 - 14 V
    Backdoor is open Below 1 V
    B9-8 <==> B8-3 (POS <==> GND) BR-W <==> W-B Backdoor lock switch is unlock position Below 1 V
    Backdoor lock switch is lock position 10 - 14 V
    B9-21 <==> B8-3 (LSE <==> GND) B-R <==> W-B Constant 10 - 14 V
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