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Terminals Of Ecu

  1. STEERING LOCK ECU 
    Fig 1: Identifying Steering Lock ECU Connector Terminals
    G03004046Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    STEERING LOCK ECU CONNECTOR TERMINALS SPECIFIED VALUE

    Terminal No. (Symbols) Wiring color Terminal description Condition Specified value
    S46-1 - S46-9 (CPUB - GND) V-Y - W-B Power source (ECU, BEAN) Always 10 to 14V
    S46-2 - S46-9 (IG2 - GND) B - W-B Power source (BEAN) IG switch ON signal Ignition switch in ON position 10 to 14V
    S46-3 - S46-9 (P2SW - GND) LG - W-B Shift P signal Shift lever in P position 3 V or higher
    S46-4 - S46-9 (EFII - GND) GR-R - W-B ECM (EFI) communication Always Pulse generation (see wave form 1)
    S46-6 - S46-9 (MPX2 - GND) P-L W-B Multiplex communication IG switch OFF Below 1 V
    S46-7 - S46-9 (VC5 - GND) R - W-B Power source (Immobilizer Amplifier) Ignition key inserted 4.5 to 5.5 V
    S46-8 - S46-9 (RXCK - GND) L - W-B Transponder key ECU communication Ignition key inserted Pulse generation (see wave form 2)
    S46-9 - Body ground (GND - Body ground) W-B - Body ground Ground Always Below 1 V
    S46-10 - S46-9 (+B - GND) R-L - W-B Power source (ECU, steering lock motor) Always 10 to 14V
    S46-11 - S46-9 (PUSH - GND) P-B - W-B Push switch signal Push switch pushed ON Below 1 V
    S46-12 - S46-9 (KSW - GND) LG-B - W-B Key switch signal Key switch ON (Ignition key inserted) Below 1 V
    S46-13 - S46-9 (EFIO - GND) B-Y - W-B ECU (EFI) communication Ignition key inserted Pulse generation (see wave form 3)
    S46-15 - S46-9 (MPX1 - GND) P-L - W-B Multiplex communication IG switch OFF Below 1 V
    S46-16 - S46-9 (TXCT - GND) Y-B - W-B Transponder key ECU communication Ignition key inserted Pulse generation (see wave form 4)
    S46-17 - S46-9 (CODE - GND) O - W-B Transponder key ECU communication Ignition key inserted Pulse generation (see wave form 5)
    S46-18 - Body ground) (AGND - Body ground) V - Body ground Ground (Immobilizer Amplifier) Always Below 1 V
    1. Wave form 1
      WAVE FORM 1 REFERENCE

      Item Content
      Measure terminal EFII - GND
      Measure set 12V/DIV, 5ms/DIV
      Condition Always
    2. Wave form 2
      Fig 2: Wave Form 1
      G03004047Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVE FORM 2 REFERENCE

      Item Content
      Measure terminal RXCK - GND
      Measure set 5V/DIV, 50 ms/DIV
      Condition Ignition key inserted
      Fig 3: Wave Form 2
      G03004048Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Wave form 3
      WAVE FORM 3 REFERENCE

      Item Content
      Measure terminal EFIO - GND
      Measure set 12V/DIV, 5 ms/DIV
      Condition Ignition key inserted
      Fig 4: Wave Form 3
      G03004049Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Wave form 4
      WAVE FORM 4 REFERENCE

      Item Content
      Measure terminal TXCT - GND
      Measure set 2V/DIV, 10 ms/DIV
      Condition Ignition key inserted
      Fig 5: Wave Form 4
      G03004050Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Wave form 5
      WAVE FORM 5 REFERENCE

      Item Content
      Measure terminal CODE - GND
      Measure set 5V/DIV, 10 ms/DIV
      Condition Ignition key inserted
      Fig 6: Wave Form 5
      G03004051Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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