CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM TERMINALS OF ECM


  1. ECM

    A01CDB7E18

    Tech Tips

    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
    A8-1 (+B2) - D41-104 (E1) P - BR Power source of ECM Engine switch on (IG) 11 to 14 V
    A8-2 (+B) - D41-104 (E1) B - BR Power source of ECM Engine switch on (IG) 11 to 14 V
    A8-3 (+BM) - D41-104 (E1) BR - BR Power source of throttle actuator Always 11 to 14 V
    A8-20 (BATT) - D41-104 (E1) V - BR Battery (for measuring battery voltage and for ECM memory) Always 11 to 14 V
    A8-41 (CANH) - D41-104 (E1) B - BR CAN communication line Engine switch on (IG)

    Pulse generation

    (See waveform 1)
    A8-49 (CANL) - D41-104 (E1) W - BR CAN communication line Engine switch on (IG)

    Pulse generation

    (See waveform 2)
    A8-36 (STP) - D41-104 (E1) R - BR Stop light switch signal Brake pedal depressed 11 to 14 V
    Brake pedal released Below 1.5 V
    A8-48 (STA) - D41-104 (E1) LG - BR Starter signal Cranking 5.5 V or higher
    A8-44 (MREL) - D41-104 (E1) GR - BR EFI MAIN relay Engine switch on (IG) 11 to 14 V
    A8-16 (SFTU) - D41-104 (E1) P - BR Up-shift position switch signal Engine switch on (IG) and shift lever in M 11 to 14 V
    Engine switch on (IG) and shift lever in "+" (up-shift) Below 1 V
    A8-51 (SFTD) - D41-104 (E1) GR - BR Down-shift position switch signal Engine switch on (IG) and shift lever in M 11 to 14 V
    Engine switch on (IG) and shift lever in "-" (down-shift) Below 1 V
    D41-52 (STAR) - D41-104 (E1) LG - BR Park/Neutral position switch signal Engine switch on (IG) and shift lever in P or N Below 1 V
    Engine switch on (IG) and shift lever not in P or N 11 to 14 V
    D41-53 (R) - D41-104 (E1) R - BR R position switch signal Engine switch on (IG) and shift lever in R 11 to 14 V
    Engine switch on (IG) and shift lever not in R Below 1 V
    D41-54 (N) - D41-104 (E1) L - BR N position switch signal Engine switch on (IG) and shift lever in N 11 to 14 V
    Engine switch on (IG) and shift lever not in N Below 1 V
    D41-56 (D) - D41-104 (E1) W - BR D position switch signal Engine switch on (IG) and shift lever in D 11 to 14 V
    Engine switch on (IG) and shift lever not in D Below 1 V
    D41-73 (P) - D41-104 (E1) V - BR P position switch signal Engine switch on (IG) and shift lever in P 11 to 14 V
    Engine switch on (IG) and shift lever not in P Below 1 V
    D41-74 (S) - D41-104 (E1) G - BR S position switch signal Engine switch on (IG) and shift lever in M 11 to 14 V
    Engine switch on (IG) and shift lever not in M Below 1 V
    D41-76 (SLS+) - D41-75 (SLS-) BR - Y Shift solenoid valve SLS signal Engine idling

    Pulse generation

    (See waveform 3)
    D41-78 (DS2) - D41-104 (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)
    D41-79 (DS1) - D41-104 (E1) W - BR Shift solenoid valve DS1 signal Accelerator pedal released while driving with shift lever in D

    Pulse generation

    (See waveform 5)
    D41-57 (SL) - D41-104 (E1) L - BR Shift solenoid valve SL signal Engine switch on (IG) and shift lever in N 11 to 14 V
    D41-80 (DSU) - D41-104 (E1) W - BR Shift solenoid valve DSU signal Lock-up turned from off to on

    Pulse generation

    (See waveform 6)
    D41-72 (THO1) - D41-95 (ETHO) G - BR CVT fluid temperature sensor signal CVT fluid temperature: 60 to 120°C (140 to 248°F) 0.2 to 1.0 V
    D41-71 (PTO) - D41-94 (EPTO) B - LG Oil pressure sensor signal Engine idling speed and shift lever in P 0.8 to 1.2 V
    D41-70 (VCPT) - D41-94 (EPTO) W - LG Power supply for oil pressure sensor signal Engine switch on (IG) 4.5 to 5.5 V
    D41-104 (E1) - Body ground BR - Body ground Ground Always Below 1 Ω
    D41-101 (NIN+) - D41-102 (NIN-) G - R 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 7)
    D41-125 (NTO) - D41-104 (E1) V - P 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)
    D41-126 (NOTO) - D41-104 (E1) B - 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 9)

    1. A01CB8ME01

      Using an oscilloscope, check waveform 1.

      Reference
      Terminal No. (Symbol) Tool Setting Condition
      A8-8 (CANH) - D41-104 (E1) 1 V/DIV., 10 μsec./DIV. Engine switch on (IG)
    2. A01CEKJE01

      Using an oscilloscope, check waveform 2.

      Reference
      Terminal No. (Symbol) Tool Setting Condition
      A8-9 (CANL) - D41-104 (E1) 1 V/DIV., 10 μsec./DIV. Engine switch on (IG)
    3. A01CF6CE01

      Using an oscilloscope, check waveform 3.

      Reference
      Terminal No. (Symbol) Tool Setting Condition
      D41-54 (SLS+) - D41-53 (SLS-) 5 V/DIV., 1 msec./DIV. Engine idling
    4. A01CCJ2E01

      Using an oscilloscope, check waveform 4.

      Reference
      Terminal No. (Symbol) Tool Setting Condition
      D41-55 (DS2) - D41-104 (E1) 10 V/DIV., 5 msec./DIV. Accelerator pedal depressed further after driving at constant vehicle speed with shift lever in D

      Tech Tips

      Duty ratio increases as the gear ratio increases.

    5. A01CD09E01

      Using an oscilloscope, check waveform 5.

      Reference
      Terminal No. (Symbol) Tool Setting Condition
      D41-56 (DS1) - D41-104 (E1) 10 V/DIV., 5 msec./DIV. Accelerator pedal released while driving with shift lever in D

      Tech Tips

      Duty ratio increases as the gear ratio decreases.

    6. A01CGCIE01

      Using an oscilloscope, check waveform 6.

      Reference
      Terminal No. (Symbol) Tool Setting Condition
      D41-59 (DSU) - D41-104 (E1) 10 V/DIV., 20 msec./DIV. Lock-up turned from off to on

      Tech Tips

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

    7. A01CG8UE01

      Using an oscilloscope, check waveform 7.

      Reference
      Terminal No. (Symbol) Tool Setting Condition
      D41-122 (NIN+) - D41-100 (NIN-) 1 V/DIV., 2 msec./DIV. 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.

    8. A01CDXOE01

      Using an oscilloscope, check waveform 8.

      Reference
      Terminal No. (Symbol) Tool Setting Condition
      D41-124 (NTO) - D41-104 (E1) 1 V/DIV., 2 msec./DIV. 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. A01CCIEE01

      Using an oscilloscope, check waveform 9.

      Reference
      Terminal No. (Symbol) Tool Setting Condition
      D41-125 (NOTO) - D41-104 (E1) 1 V/DIV., 2 msec./DIV. 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.