CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM TERMINALS OF ECM


  1. ECM

    A005HBEE02

    Tech Tips

    The standard voltage, resistance and waveforms of each ECM terminal is shown in the table below.

    In the table, first follow the information under "Condition". Look under "Terminal No. (Symbol)" for the terminals to be inspected. The standard voltage or resistance between the terminals is shown under "Specified Condition".

    Use the illustration above as a reference for the ECM terminals.

    Terminals No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    A58-1 (BATT) - B23-16 (E1) Y - W-B Battery (for measuring battery voltage and for ECM memory) Always 11 to 14 V
    A58-2 (+B) - B23-16 (E1) B - W-B Power source of ECM Ignition switch ON 11 to 14 V
    A58-3 (+B2) - B23-16 (E1) B - W-B Power source of ECM Ignition switch ON 11 to 14 V
    A58-13 (CANH) - B23-16 (E1) L - W-B CAN communication line Ignition switch ON Pulse generation (See waveform 1)
    A58-22 (STA) - B23-16 (E1) BR - W-B Starter signal Cranking 5.5 V or higher
    A58-26 (CANL) - B23-16 (E1) W - W-B CAN communication line Ignition switch ON Pulse generation (See waveform 2)
    A58-41 (S) - B23-16 (E1) V - W-B M position switch signal Ignition switch ON and shift lever in M 11 to 14 V
    Ignition switch ON and shift lever not in M Below 1 V
    A58-42 (SFTU) - B23-16 (E1) GR - W-B Up-shift position switch signal Ignition switch ON and shift lever in M 11 to 14 V

    • Ignition switch ON and shift lever in "+" (up-shift)

    • Ignition switch ON and "+" shift paddle operated (up-shift)

    		 Below 1 V
    A58-43 (SFTD) - B23-16 (E1) P - W-B Down-shift position switch signal Ignition switch ON and shift lever in M 11 to 14 V

    • Ignition switch ON and shift lever in "-" (down-shift)

    • Ignition switch ON and "-" shift paddle operated (down-shift)

    		 Below 1 V
    A58-46 (MREL) - B23-16 (E1) GR - W-B EFI MAIN relay Ignition switch ON 11 to 14 V
    A58-57 (PWMS) - B23-16 (E1) L - W-B Pattern select switch (SPORT) signal Ignition switch ON and pattern select switch (SPORT) off 11 to 14 V
    Ignition switch ON and pattern select switch (SPORT) on Below 1.5 V
    B23-16 (E1) - Body ground W-B Ground Always Below 1 Ω
    B23-29 (+BM) - B23-16 (E1) GR - W-B Power source of throttle actuator Always 11 to 14 V
    B23-63 (NSW) - B23-16 (E1) BE - W-B Park/neutral position switch signal Ignition switch ON and shift lever in P or N Below 1 Ω
    Ignition switch ON and shift lever not in P or N 11 to 14 V
    B23-66 (SLT-) - B23-67 (SLT+) L - P Shift solenoid valve SLT signal Engine idling Pulse generation (See waveform 3)
    B23-69 (DS2) - B23-16 (E1) R - W-B Shift solenoid valve DS2 signal Accelerator pedal depressed further after driving at constant vehicle speed with shift lever in D Pulse generation (See waveform 4)
    B23-70 (DS1) - B23-16 (E1) W - W-B Shift solenoid valve DS1 signal Accelerator pedal released while driving with shift lever in D Pulse generation (See waveform 5)
    B23-71 (DSU) - B23-16 (E1) GR - W-B Shift solenoid valve DSU signal Lock-up turned from off to on Pulse generation (See waveform 6)
    B23-72 (SLS-) - B23-73 (SLS+) BE - V Shift solenoid valve SLS signal Engine idling Pulse generation (See waveform 7)
    B23-79 (R) - B23-16 (E1) R - W-B R position switch signal Ignition switch ON and shift lever in R 11 to 14 V
    Ignition switch ON and shift lever not in R Below 1 Ω
    B23-81 (D) - B23-16 (E1) L - W-B D position switch signal Ignition switch ON and shift lever in D 11 to 14 V
    Ignition switch ON and shift lever not in D Below 1 V
    B23-89 (PTO) - B23-121 (EPTO) L - BE Oil pressure sensor signal Engine idling speed and shift lever in P 0.8 to 1.2 V
    B23-95 (THO1) - B23-96 (ETHO) Y - B CVT fluid temperature sensor signal CVT fluid temperature: 60 to 120°C (140 to 248°F) 0.2 to 1.0 V
    B23-97 (N) - B23-16 (E1) V - W-B N position switch signal Ignition switch ON and shift lever in N 11 to 14 V
    Ignition switch ON and shift lever not in N Below 1 V
    B23-98 (B) - B23-16 (E1) LG - W-B B position switch signal Ignition switch ON and shift lever in B 11 to 14 V
    Ignition switch ON and shift lever not in B Below 1 V
    B23-99 (P) - B23-16 (E1) P - W-B P position switch signal Ignition switch ON and shift lever in P 11 to 14 V
    Ignition switch ON and shift lever not in P Below 1 V
    B23-120 (VCPT) - B23-121 (EPTO) V - W-B Power supply for oil pressure sensor signal Ignition switch ON 4.5 to 5.5 V
    B23-125 (NTO) - B23-126 (NTB) G - B Transmission revolution sensor (NT) signal When driving with shift lever in D, vehicle speed approx. 12 km/h (7.5 mph) and engine speed approx. 1000 rpm Pulse generation (See waveform 8)
    B23-127 (NIN+) - B23-128 (NIN-) LG - Y Transmission revolution sensor (NIN) signal When driving with shift lever in D, vehicle speed approx. 6 km/h (3.7 mph) and engine speed approx. 760 rpm Pulse generation (See waveform 9)
    B23-129 (NOTO) - B23-130 (NOTB) BE - W Transmission revolution sensor (NOUT) signal When driving with shift lever in D, vehicle speed approx. 12 km/h (7.5 mph) and engine speed approx. 1000 rpm Pulse generation (See waveform 10)

    1. A005JEME01

      Waveform 1 (Reference)

      Terminal CANH - E1
      Tool setting 1 V/DIV, 10 μs/DIV
      Vehicle conditions Ignition switch ON
    2. A005MD7E01

      Waveform 2 (Reference)

      Terminal CANL - E1
      Tool setting 1 V/DIV, 10 μs/DIV
      Vehicle conditions Ignition switch ON
    3. A005I2GE01

      Waveform 3

      Terminal SLT+ - SLT-
      Tool setting 5 V/DIV, 1 ms/DIV
      Vehicle conditions Engine idling speed
    4. A005IH6E02

      Waveform 4

      Terminal DS2 - E1
      Tool setting 10 V/DIV, 5 ms/DIV
      Vehicle conditions Accelerator pedal depressed further after driving at constant vehicle speed with shift lever in D

      Tech Tips

      Duty ratio increases with downshifts.

    5. A005H3NE01

      Waveform 5

      Terminal DS1 - E1
      Tool setting 10 V/DIV, 5 ms/DIV
      Vehicle conditions Accelerator pedal released while driving with shift lever in D

      Tech Tips

      Duty ratio increases with upshifts.

    6. A005MIHE02

      Waveform 6

      Terminal DSU - E1
      Tool setting 10 V/DIV, 20 ms/DIV
      Vehicle conditions Lock-up turned from off to on

      Tech Tips

      Duty ratio increases to 100% with lock-up on.

    7. A005H3EE02

      Waveform 7

      Terminal SLS+ - SLS-
      Tool setting 5 V/DIV, 1 ms/DIV
      Vehicle conditions Engine idling speed
    8. A005KGFE04

      Waveform 8

      Terminal NTO - NTB
      Tool setting 1 V/DIV, 2 ms/DIV
      Vehicle conditions When driving with shift lever in D, vehicle speed approx. 12 km/h (7.5 mph) and engine speed approx. 1000 rpm

      Tech Tips

      The wavelength shortens as the turbine speed increases.

    9. A005L6JE02

      Waveform 9

      Terminal NIN+ - NIN-
      Tool setting 1 V/DIV, 2 ms/DIV
      Vehicle conditions When driving with shift lever in D, vehicle speed approx. 6 km/h (3.7 mph) and engine speed approx. 760 rpm

      Tech Tips

      The wavelength shortens and the voltage increases as the primary pulley speed increases.

    10. A005K8WE04

      Waveform 10

      Terminal NOTO - NOTB
      Tool setting 1 V/DIV, 2 ms/DIV
      Vehicle conditions When driving with shift lever in D, vehicle speed approx. 12 km/h (7.5 mph) and engine speed approx. 1000 rpm

      Tech Tips

      The wavelength shortens as the secondary pulley speed increases.