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CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM TERMINALS OF ECM

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  1. A01IOBKE11

    ECM

    Tip:

    The standard voltage and resistance 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.

    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    A51-1 (+B2) - C68-105 (E1) B - BR Power source of ECM Ignition switch ON 11 to 14 V
    A51-2 (+B) - C68-105 (E1) B - BR Power source of ECM Ignition switch ON 11 to 14 V
    A51-3 (+BM) - C68-105 (E1) B - BR Power source of throttle actuator Always 11 to 14 V
    A51-8 (CANH) - C68-105 (E1) Y - BR CAN communication line Ignition switch ON

    Pulse generation

    (See waveform 1)
    A51-9 (CANL) - C68-105 (E1) W - BR CAN communication line Ignition switch ON

    Pulse generation

    (See waveform 2)
    A51-16 (SFTU) - C68-105 (E1) W - BR 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
    A51-17 (PWMS) - C68-105 (E1) R - BR No. 1 pattern select switch (SPORT) signal Ignition switch ON and No. 1 pattern select switch (SPORT) off 11 to 14 V
    Ignition switch ON and No. 1 pattern select switch (SPORT) on Below 1.5 V
    A51-20 (BATT) - C68-105 (E1) P - BR Battery (for measuring battery voltage and for ECM memory) Always 11 to 14 V
    A51-25 (NSW) - C68-105 (E1) G - BR Park/neutral position switch signal Ignition switch ON and shift lever in P or N Below 1 V
    Ignition switch ON and shift lever not in P or N 11 to 14 V
    A51-36 (STP) - C68-105 (E1) V - BR Stop light switch signal Brake pedal depressed 11 to 14 V
    Brake pedal released Below 1.5 V
    A51-44 (MREL) - C68-105 (E1) L - BR EFI MAIN relay Ignition switch ON 11 to 14 V
    A51-47 (D) - C68-105 (E1) G - BR 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
    A51-48 (STA) - C68-105 (E1) LG - BR Starter signal Cranking 5.5 V or higher
    A51-51 (SFTD) - C68-105 (E1) R - BR 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
    C68-39 (S) - C68-105 (E1) L - BR 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
    C68-54 (SLS+) - C68-53 (SLS-) L - P Shift solenoid valve SLS signal Engine idling

    Pulse generation

    (See waveform 3)
    C68-55 (DS2) - C68-105 (E1) R - BR 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)
    C68-56 (DS1) - C68-105 (E1) V - BR Shift solenoid valve DS1 signal Accelerator pedal released while driving with shift lever in D

    Pulse generation

    (See waveform 5)
    C68-59 (DSU) - C68-105 (E1) B - BR Shift solenoid valve DSU signal Lock-up turned from off to on

    Pulse generation

    (See waveform 6)
    C68-61 (SLT+) - C68-60 (SLT-) LG - G Shift solenoid valve SLT signal Engine idling

    Pulse generation

    (See waveform 7)
    C68-70 (THO1) - C68-71 (ETHO) Y - R CVT fluid temperature sensor signal CVT fluid temperature: 60 to 120°C (140 to 248°F) 0.2 to 1.0 V
    C68-73 (PTO) - C68-72 (EPTO) W - B Oil pressure sensor signal Engine idling speed and shift lever in P 0.8 to 1.2 V
    C68-76 (R) - C68-105 (E1) R - BR 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 V
    C68-77 (P) - C68-105 (E1) V - BR 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
    C68-95 (VCPT) - C68-72 (EPTO) P - B Power supply for oil pressure sensor signal Ignition switch ON 4.5 to 5.5 V
    C68-99 (N) - C68-105 (E1) B - BR 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
    C68-105 (E1) - Body ground BR - Body ground Ground Always Below 1 Ω
    C68-122 (NIN+) - C68-100 (NIN-) LG - L Transmission revolution sensor (NIN) signal Vehicle is driven with shift lever in D, vehicle speed approx. 6 km/h (3.7 mph) and engine speed approx. 760 rpm

    Pulse generation

    (See waveform 8)
    C68-124 (NTO) - C68-123 (NTB) B - Y Transmission revolution sensor (NT) signal Vehicle is driven with shift lever in D, vehicle speed approx. 12 km/h (7.5 mph) and engine speed approx. 1000 rpm

    Pulse generation

    (See waveform 9)
    C68-125 (NOTO) - C68-101 (NOTB) L - R Transmission revolution sensor (NOUT) signal Vehicle is driven 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. A01IT6CE01

      Using an oscilloscope, check waveform 1.

      Table 1. Waveform 1 (reference)
      Terminal No. (Symbol) Tool Setting Condition
      A51-8 (CANH) - C68-105 (E1) 1 V/DIV., 10 μsec./DIV. Ignition switch ON
    2. A01IQ1WE01

      Using an oscilloscope, check waveform 2.

      Table 2. Waveform 2 (reference)
      Terminal No. (Symbol) Tool Setting Condition
      A51-9 (CANL) - C68-105 (E1) 1 V/DIV., 10 μsec./DIV. Ignition switch ON
    3. A01INHGE01

      Using an oscilloscope, check waveform 3.

      Table 3. Waveform 3 (reference)
      Terminal No. (Symbol) Tool Setting Condition
      C68-54 (SLS+) - C68-53 (SLS-) 5 V/DIV., 1 msec./DIV. Engine idling
    4. A01IPSNE01

      Using an oscilloscope, check waveform 4.

      Table 4. Waveform 4 (reference)
      Terminal No. (Symbol) Tool Setting Condition
      C68-55 (DS2) - C68-105 (E1) 10 V/DIV., 5 msec./DIV. Accelerator pedal depressed further after driving at constant vehicle speed with shift lever in D
      Tip:

      Duty ratio increases as the gear ratio increases.

    5. A01INFRE01

      Using an oscilloscope, check waveform 5.

      Table 5. Waveform 5 (reference)
      Terminal No. (Symbol) Tool Setting Condition
      C68-56 (DS1) - C68-105 (E1) 10 V/DIV., 5 msec./DIV. Accelerator pedal released while driving with shift lever in D
      Tip:

      Duty ratio increases as the gear ratio decreases.

    6. A01IRCHE01

      Using an oscilloscope, check waveform 6.

      Table 6. Waveform 6 (reference)
      Terminal No. (Symbol) Tool Setting Condition
      C68-59 (DSU) - C68-105 (E1) 10 V/DIV., 20 msec./DIV. Lock-up turned from off to on
      Tip:

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

    7. A01IR0GE01

      Using an oscilloscope, check waveform 7.

      Table 7. Waveform 7 (reference)
      Terminal No. (Symbol) Tool Setting Condition
      C68-61 (SLT+) - C68-60 (SLT-) 5 V/DIV., 1 msec./DIV. Engine idling
      Tip:

      Duty ratio increases to 100% with the lock up ON.

    8. A01IQJKE01

      Using an oscilloscope, check waveform 8.

      Table 8. Waveform 8 (reference)
      Terminal No. (Symbol) Tool Setting Condition
      C68-122 (NIN+) - C68-100 (NIN-) 1 V/DIV., 2 msec./DIV. Vehicle is driven with shift lever in D, vehicle speed approx. 6 km/h (3.7 mph) and engine speed approx. 760 rpm
      Tip:

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

    9. A01IPD5E01

      Using an oscilloscope, check waveform 9.

      Table 9. Waveform 9 (reference)
      Terminal No. (Symbol) Tool Setting Condition
      C68-124 (NTO) - C68-123 (NTB) 1 V/DIV., 2 msec./DIV. Vehicle is driven with shift lever in D, vehicle speed approx. 12 km/h (7.5 mph) and engine speed approx. 1000 rpm
      Tip:

      The wavelength shortens as the turbine speed increases.

    10. A01ISQUE01

      Using an oscilloscope, check waveform 10.

      Table 10. Waveform 10 (reference)
      Terminal No. (Symbol) Tool Setting Condition
      C68-125 (NOTO) - C68-101 (NOTB) 1 V/DIV., 2 msec./DIV. Vehicle is driven with shift lever in D, vehicle speed approx. 12 km/h (7.5 mph) and engine speed approx. 1000 rpm
      Tip:

      The wavelength shortens as the secondary pulley speed increases.