ELECTRONIC SHIFT LEVER SYSTEM TERMINALS OF ECU


  1. CHECK SHIFT CONTROL ECU

    B000X8UC02
    *a TERMINALS OF SHIFT CONTROL ECU - -
    Terminal No. (Symbol) Input/Output Wiring Color Terminal Description Condition Specified Condition
    A53-1 (MWA) - P75-6 (E01) Output L - W-B Parking lock motor signal Engine switch on (IG) 7.5 to 15.4 V
    A53-2 (MVA) - P75-6 (E01) Output R - W-B Parking lock motor signal Engine switch on (IG) 7.5 to 15.4 V
    A53-5 (MUA) - P75-6 (E01) Output B - W-B Parking lock motor signal Engine switch on (IG) 7.5 to 15.4 V
    A53-7 (SS) - Body ground - - shield line Always Below 1 Ω
    A53-12 (BMA1) - P74-1 (E1) Output G - W-B P CON MTR relay operation signal Engine switch off → Engine switch on (IG) 7.5 to 15.4 V → Below 1 V
    A53-16 (RS) - Body ground - - shield line Always Below 1 Ω
    A53-17 (E2NS) - P74-1 (E1) Input G - W-B Range sensor ground Always 0.4 V or less
    A53-18 (NS2) - A53-17 (E2NS) Input R - G Range sensor signal Engine switch on (IG), shift state park (P) 0.5 to 4.5 V
    A53-19 (VCNS) - A53-17 (E2NS) Output B - G Power source of range sensor Engine switch on (IG) 4.5 to 5.5 V
    A53-20 (NS1) - A53-17 (E2NS) Input W - G Range sensor signal Engine switch on (IG), shift state park (P) 0.5 to 4.5 V
    A53-21 (RB) - A53-24 (E2) Input R - G Rotation angle sensor signal Engine switch off → Engine switch on (IG) 0.4 V or less → 4.9 V or higher
    Engine switch on (IG), changing the shift state between park (P) and neutral (N) Pulse generation (see waveform 1)
    A53-22 (VC) - A53-24 (E2) Output W - G Power source of rotation angle sensor Engine switch on (IG) 4.5 to 5.5 V
    A53-23 (RA) - A53-24 (E2) Input B - G Rotation angle sensor signal Engine switch off → Engine switch on (IG) 0.4 V or less → 4.9 V or higher
    Engine switch on (IG), changing the shift state between park (P) and neutral (N) Pulse generation (see waveform 1)
    A53-24 (E2) - P74-1 (E1) Output G - W-B Rotation angle sensor ground Always 0.4 V or less
    P74-1 (E1) - Body ground - W-B - - Ground Always Below 1 Ω
    P74-3 (SBFS) - P74-1 (E1) Output BE - W-B Fail-safe signal Engine switch on (IG) Pulse generation (see waveform 2)
    P74-5 (CA2L) - P74-1 (E1) Input/Output W - W-B CAN communication signal Engine switch on (IG) Pulse generation (see waveform 3)
    P74-6 (CA2H) - P74-1 (E1) Input/Output R - W-B CAN communication signal Engine switch on (IG) Pulse generation (see waveform 3)
    P74-8 (CA1L) - P74-1 (E1) Input/Output W - W-B CAN communication signal Engine switch on (IG) Pulse generation (see waveform 4)
    P74-9 (CA1H) - P74-1 (E1) Input/Output Y - W-B CAN communication signal Engine switch on (IG) Pulse generation (see waveform 4)
    P74-10 (BUB) - P74-1 (E1) Input G - W-B Sub-battery power supply Engine switch on (IG)*1 8 to 15.4 V
    P74-11 (EC) - Body ground - W-B - - Ground Always Below 1 Ω
    P74-13 (PPOS) - P74-1 (E1) Output LG - W-B Shift state signal Engine switch on (IG), shift state park (P) Pulse generation (see waveform 5)
    P74-15 (BL) - P74-1 (E1) Output R - W-B Back-up light relay operation signal Shift state reverse (R) 7.25 to 14.65 V
    Shift state not reverse (R) 1 V or less
    P74-18 (ACC) - P74-1 (E1) Input GR - W-B ACC power supply Engine switch on (ACC) 6 V or higher
    P74-22 (BUBI) - P74-1 (E1) Input P - W-B Sub-battery condition signal Engine switch on (IG) Pulse generation (see waveform 6)
    P74-24 (BMA2) - P74-1 (E1) Output V - W-B P CON MTR2 relay operation signal Engine switch on (IG)*2 7.5 to 15.4 V
    P74-27 (IG2) - P74-1 (E1) Input B - W-B IG2 power supply Engine switch on (IG) 6 V or higher
    P74-29 (BUBO) - P74-1 (E1) Output L - W-B Backup request signal Engine switch on (IG) Pulse generation (see waveform 7)
    P75-1 (BATT) - P74-1 (E1) Input G - W-B Battery power supply Always 8 to 15.4 V
    P75-4 (E03) - Body ground - W-B - - Ground Always Below 1 Ω
    P75-5 (E02) - Body ground - W-B - - Ground Always Below 1 Ω
    P75-6 (E01) - Body ground - W-B - - Ground Always Below 1 Ω
    P75-10 (P1) - P74-1 (E1) Input SB - W-B P position switch signal Engine switch on (IG), P position switch not operated 5.8 V or higher
    Engine switch on (IG), P position switch being pushed and held 2.47 to 5.8 V
    P75-11 (ACCI) - P74-1 (E1) Output P - W-B Power source of shift position indicator Engine switch off → Engine switch on (ACC) 1 V or less → 8 to 15.4 V
    P75-12 (INDP) - P74-1 (E1) Output B - W-B Shift position indicator signal (P) Shift state park (P) 1 V or less
    Shift state not park (P) 8 to 15.4 V
    P75-13 (INDM) - P74-1 (E1) Output Y - W-B Shift position indicator signal (M) Shift state manual (M) 1 V or less
    Shift state not manual (M) 8 to 15.4 V
    P75-14 (INDD) - P74-1 (E1) Output R - W-B Shift position indicator signal (D) Shift state drive (D) 1 V or less
    Shift state not drive (D) 8 to 15.4 V
    P75-15 (INDN) - P74-1 (E1) Output G - W-B Shift position indicator signal (N) Shift state neutral (N) 1 V or less
    Shift state not neutral (N) 8 to 15.4 V
    P75-16 (INDR) - P74-1 (E1) Output BE - W-B Shift position indicator signal (R) Shift state reverse (R) 1 V or less
    Shift state not reverse (R) 8 to 15.4 V
    P75-17 (E12) - Body ground - W-B - - Ground Always Below 1 Ω
    P75-18 (STP) - P74-1 (E1) Input R - W-B Stop light switch signal Brake pedal depressed 7.17 V or higher
    Brake pedal released 2 V or less
    P75-19 (VSI1) - P75-24 (E2X1) Input B - LG Shift lever position signal Engine switch on (IG), shift lever in home position 3.634 to 4.226 V
    Engine switch on (IG), shift lever in D 1.366 to 1.923 V
    Engine switch on (IG), shift lever in N 0.774 to 1.366 V
    Engine switch on (IG), shift lever in R 0.3 to 0.774 V
    Engine switch on (IG), shift lever in M 2.5 to 3.634 V
    P75-20 (VCX1) - P75-24 (E2X1) Output L - LG Power source of shift lever position sensor Engine switch on (IG) 4.5 to 5.5 V
    P75-21 (VSI2) - P75-24 (E2X1) Input W - LG Shift lever position signal Engine switch on (IG), shift lever in home position 3.084 to 3.676 V
    Engine switch on (IG), shift lever in D 2.08 to 2.5 V
    Engine switch on (IG), shift lever in N 1.324 to 2.08 V
    Engine switch on (IG), shift lever in R 0.3 to 1.324 V
    Engine switch on (IG), shift lever in M 2.5 to 3.084 V
    P75-22 (VCX2) - P75-26 (E2X2) Output GR - SB Power source of shift lever position sensor Engine switch on (IG) 4.5 to 5.5 V
    P75-23 (VSI3) - P75-26 (E2X2) Input V - SB Shift lever position signal Engine switch on (IG), shift lever in home position 1.324 to 1.916 V
    Engine switch on (IG), shift lever in D 3.676 to 4.75 V
    Engine switch on (IG), shift lever in N 2.92 to 3.676 V
    Engine switch on (IG), shift lever in R 2.5 to 2.92 V
    Engine switch on (IG), shift lever in M 0.3 to 1.324 V
    P75-24 (E2X1) - P74-1 (E1) Input LG - W-B Shift lever position sensor ground Engine switch on (IG) 0.4 V or less
    P75-25 (VSI4) - P75-26 (E2X2) Input P - SB Shift lever position signal Engine switch on (IG), shift lever in home position 0.774 to 1.366 V
    Engine switch on (IG), shift lever in D 4.226 to 4.75 V
    Engine switch on (IG), shift lever in N 3.634 to 4.226 V
    Engine switch on (IG), shift lever in R 3.077 to 3.634 V
    Engine switch on (IG), shift lever in M 0.3 to 0.774 V
    P75-26 (E2X2) - P74-1 (E1) Input SB - W-B Shift lever position sensor ground Engine switch on (IG) 0.4 V or less

    *1: Power is supplied from the sub-battery module assembly for only 5 seconds after the engine switch is turned on (IG). Therefore, measure the voltage during that time.

    *2: With the engine switch on (IG), disconnect the cable from the negative (-) battery terminal and check that the voltage level changes.

  2. OSCILLOSCOPE WAVEFORMS

    Tech Tips

    Oscilloscope waveform samples are provided here for reference only. Noise and fluctuating waveforms have been omitted.


    1. B000XEPE02

      Waveform 1 (Rotation angle sensor signal)

      Item Contents
      Terminal

      CH1: RA - E2

      CH2: RB - E2
      Equipment setting 2 V/DIV., 200 ms./DIV.
      Condition Engine switch on (IG), changing the shift state between park (P) and neutral (N)

      Tech Tips

      When changing the shift state from park (P) to neutral (N), or neutral (N) to park (P) with the engine switch on (IG), a waveform will be generated for up to 1.5 seconds.

    2. B000ZAZE02

      Waveform 2 (Fail-safe signal)

      Item Contents
      Terminal SBFS - E1
      Equipment setting 10 V/DIV., 20 ms./DIV.
      Condition Engine switch on (IG)

      Tech Tips

      The waveforms differ when the shift control ECU is malfunctioning.

    3. B000WEHE02

      Waveform 3 (CAN communication signal)

      Item Contents
      Terminal

      CH1: CA2H - E1

      CH2: CA2L - E1
      Equipment setting 1 V/DIV., 10 μs./DIV.
      Condition Engine switch on (IG)

      Tech Tips

      The waveform will vary depending on the content of the digital communication (digital signal).

    4. B000UMEE02

      Waveform 4 (CAN communication signal)

      Item Contents
      Terminal

      CH1: CA1H - E1

      CH2: CA1L - E1
      Equipment setting 1 V/DIV., 10 μs./DIV.
      Condition Engine switch on (IG)

      Tech Tips

      The waveform will vary depending on the content of the digital communication (digital signal).

    5. B000YXJE02

      Waveform 5 (Shift state signal)

      Item Contents
      Terminal PPOS - E1
      Equipment setting 10 V/DIV., 10 ms./DIV.
      Condition Engine switch on (IG), shift state park (P)

      Tech Tips

      The waveform will vary depending on the shift state.

    6. B000XPVE01

      Waveform 6 (Sub-battery condition signal)

      Item Contents
      Terminal BUBI - E1
      Equipment setting 10 V/DIV., 10 ms./DIV.
      Condition Engine switch on (IG)

      Tech Tips

      The duty ratio changes according to the vehicle condition.

    7. B000Z56E01

      Waveform 7 (Backup request signal)

      Item Contents
      Terminal BUBO - E1
      Equipment setting 10 V/DIV., 10 ms./DIV.
      Condition Engine switch on (IG)

      Tech Tips

      The duty ratio changes according to the vehicle condition.