CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM TERMINALS OF ECM


  1. ECM

    A011APUE09

    Tech Tips

    Each ECM terminal's standard voltage and resistance 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 and resistance between the terminals is shown under "Specific Condition".

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

    Terminals No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    A18-1 (+B2) - B8-105 (E1) L - BR Power supply for IG Ignition switch ON 11 to 14 V
    A18-2 (+B) - B8-105 (E1) W - BR Power supply for IG Ignition switch ON 11 to 14 V
    A18-3 (+BM) - B8-105 (E1) R-W - BR Power supply for back-up memory Always 11 to 14 V
    A18-8 (CANH) - B8-105 (E1) L - BR CAN communication signal Ignition switch ON

    Pulse generation

    (See waveform 1)
    A18-9 (CANL) - B8-105 (E1) W - BR CAN communication signal Ignition switch ON

    Pulse generation

    (See waveform 2)

    A18-16 (SFTU) - B8-105 (E1)

    *1

    		 L - BR Up shift position switch signal Ignition switch ON and shift lever M position 11 to 14 V
    Ignition switch ON and shift lever "+" position Below 1 V
    A18-20 (BATT) - B8-105 (E1) B - BR Battery Always 11 to 14 V
    A18-25 (NSW) - B8-105 (E1) GR - BR Park/Neutral position switch signal Ignition switch ON and shift lever P or N position Below 1 V
    Ignition switch ON and shift lever other than P and N position 11 to 14 V

    A18-26 (SDSW) - B8-105 (E1)

    *2

    		 L-B - BR Shift lever position switch signal Ignition switch ON and shift lever S or B position 11 to 14 V
    Ignition switch ON and shift lever other than S and B position Below 1 V
    A18-36 (STP) - B8-105 (E1) Y - BR Stop light switch signal Brake pedal depressed 7.5 to 14 V
    Brake pedal released Below 1.5 V
    A18-44 (MREL) - B8-105 (E1) L-Y - BR Main relay (EFI/ECO) drive signal Ignition switch ON 11 to 14 V
    A18-47 (D) - B8-105 (E1) L-R - BR D shift position switch signal Ignition switch ON and shift lever D position 11 to 14 V
    Ignition switch ON and shift lever other than D position Below 1 V
    A18-48 (STA) - B8-105 (E1) W-R - BR Starter relay drive signal input Cranking 6 V or more

    A18-51 (SFTD) - B8-105 (E1)

    *1

    		 R - BR Down shift position switch signal Ignition switch ON and shift lever M position 11 to 14 V
    Ignition switch ON and shift lever "-" position Below 1 V
    B8-39 (B) - B8-105 (E1) B - BR M shift position switch signal (*1) Ignition switch ON and shift lever M position 11 to 14 V
    Ignition switch ON and shift lever other than M position Below 1 V
    B shift position switch signal (*2) Ignition switch ON and shift lever B position 11 to 14 V
    Ignition switch ON and shift lever other than B position Below 1 V
    B8-54 (SLS+) - B8-53 (SLS-) V - W-L Belt clamping pressure liner solenoid (SLS) signal Engine idling speed

    Pulse generation

    (See waveform 3)
    B8-55 (DS2) - B8-105 (E1) P-G - BR Shift control solenoid valve (DS2) signal Accelerator pedal further depressed after driving at a constant vehicle speed with shift lever in D

    Pulse generation

    (See waveform 4)
    B8-56 (DS1) - B8-105 (E1) R-L - BR Shift control solenoid valve (DS1) signal Accelerator pedal released while driving with shift lever in D

    Pulse generation

    (See waveform 5)
    B8-58 (SL) - B8-105 (E1) P-B - BR Lock-up solenoid (SL) signal Shift lever in N → except D 11 to 14 V → 0 to 1.5 V
    B8-59 (DSU) - B8-105 (E1) GR-R - BR Lock-up engagement solenoid (DSU) signal Lock-up turned from OFF to ON

    Pulse generation

    (See waveform 6)
    B8-70 (THO1) - B8-71 (ETHO) G-Y - B-W CVT fluid temperature sensor signal

    CVT fluid temperature: 60 to 120°C

    (140 to 320°F)

    		 0.2 to 1.0 V
    B8-73 (PTO) - B8-72 (EPTO) L-B - W-R Secondary pulley pressure sensor signal Engine idling speed and shift lever P position 0.8 to 1.2
    B8-76 (R) - B8-105 (E1) R - BR R shift position switch signal Ignition switch ON and shift lever R position 11 to 14 V
    Ignition switch ON and shift lever other than R position Below 1 V
    B8-77 (P) - B8-105 (E1) L-R - BR P shift position switch signal Ignition switch ON and shift lever P position 11 to 14 V
    Ignition switch ON and shift lever other than P position Below 1 V
    B8-95 (VCPT) - B8-72 (EPTO) V-W - W-R Power supply for secondary pulley pressure sensor signal Ignition switch ON and engine stopped 4.5 to 5.5 V
    B8-99 (N) - B8-105 (E1) L - BR N shift position switch signal Ignition switch ON and shift lever N position 11 to 14 V
    Ignition switch ON and shift lever other than N position Below 1 V
    B8-105 (E1) - Body ground BR - Body ground Ground Always Below 1 Ω
    B8-122 (NIN+) - B8-100 (NIN-) L - LG 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. 700 rpm

    Pulse generation

    (See waveform 7)
    B8-124 (NTO) - B8-123 (NTB) 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. 1150 rpm

    Pulse generation

    (See waveform 8)
    B8-125 (NOTO) - B8-101 (NOTB) L - 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. 1150 rpm

    Pulse generation

    (See waveform 9)

    • *1: for Multi-mode Automatic Transmission

    • *2: except Multi-mode Automatic Transmission


    1. A0119MKE01

      Waveform 1 (Reference)

      Terminal CANH - E1
      Tool setting 1 V/DIV, 10 μs/DIV
      Vehicle conditions Ignition switch ON
    2. A01199ZE01

      Waveform 2 (Reference)

      Terminal CANL - E1
      Tool setting 1 V/DIV, 10 μs/DIV
      Vehicle conditions Ignition switch ON
    3. A0118SHE02

      Waveform 3

      Terminal SLS+ - SLS-
      Tool setting 5 V/DIV, 1 ms/DIV
      Vehicle conditions Engine idling speed
    4. A0117WCE02

      Waveform 4

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

      Tech Tips

      Duty ratio increases with downshifts.

    5. A0118ADE01

      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. A0117YLE02

      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 the lock up ON.

    7. A011BLKE02

      Waveform 7

      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. 700 rpm

      Tech Tips

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

    8. A011B1WE03

      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. 1150 rpm

      Tech Tips

      The wavelength shortens as the turbine speed increases.

    9. A0117E0E03

      Waveform 9

      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. 1150 rpm

      Tech Tips

      The wavelength shortens as the secondary pulley speed increases.