ELECTRONIC CONTROLLED AUTOMATIC TRANSMISSION SYSTEM (for 1GR-FE) TERMINALS OF ECM


  1. ECM

    A01DZUCE29

    Tech Tips

    Each ECM terminal's standard voltage is shown in the table below.

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

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

    Symbols (Terminals No.) Wiring Color Terminal Description Condition Specified Condition
    L4 (E17-13) - E1 (E17-1) G-W - BR L4 shift position switch signal Ignition switch ON and shift lever on L4 Below 1 V
    L4 (E17-13) - E1 (E17-1) G-W - BR L4 shift position switch signal Ignition switch ON and shift lever not on L4 11 to 14 V
    TFN (E16-25) - E1 (E17-1) W-G - BR N shift position switch signal Ignition switch ON and shift lever on N Below 1 V
    TFN (E16-25) - E1 (E17-1) W-G - BR N shift position switch signal Ignition switch ON and shift lever not on N 11 to 14 V
    L (E13-9) - E1 (E17-1) GR-L - BR L shift position switch signal Ignition switch ON and shift lever on L 11 to 14 V
    L (E13-9) - E1 (E17-1) GR-L - BR L shift position switch signal Ignition switch ON and shift lever not on L Below 1 V
    2 (E13-10) - E1 (E17-1) G-R - BR 2 shift position switch signal Ignition switch ON and shift lever on 2 and L 11 to 14 V
    2 (E13-10) - E1 (E17-1) G-R - BR 2 shift position switch signal Ignition switch ON and shift lever not on 2 and L Below 1 V
    R (E13 -11) - E1 (E17-1) R-Y - BR R shift position switch signal Ignition switch ON and shift lever on R 11 to 14 V
    R (E13 -11) - E1 (E17-1) R-Y - BR R shift position switch signal Ignition switch ON and shift lever not on R Below 1 V
    D (E13-21) - E1 (E17-1) G-Y - BR D shift position switch signal Ignition switch ON and shift lever on D or 4 11 to 14 V
    D (E13-21) - E1 (E17-1) G-Y - BR D shift position switch signal Ignition switch ON and shift lever not on D or 4 Below 1 V
    3 (E13-19) - E1 (E17-1) L - BR 3 shift position switch signal Ignition switch ON and shift lever on 3 11 to 14 V
    3 (E13-19) - E1 (E17-1) L - BR 3 shift position switch signal Ignition switch ON and shift lever not on 3 Below 1 V
    4 (E13-20) - E1 (E17-1) G-O - BR 4 shift position switch signal Ignition switch ON and shift lever on 4 11 to 14 V
    4 (E13-20) - E1 (E17-1) G-O - BR 4 shift position switch signal Ignition switch ON and shift lever not on 4 Below 1 V
    STP (E14-15) - E1 (E17-1) G-W - BR Stop light switch signal Brake pedal is depressed 7.5 to 14 V
    STP (E14-15) - E1 (E17-1) G-W - BR Stop light switch signal Brake pedal is released Below 1.5 V
    SLU+ (E16-15) - SLU- (E16-14) L - W SLU solenoid signal 4th (lock-up) or 5th (lock-up) gear

    Pulse generation

    (see waveform 1)
    S2 (E16-10) - E1 (E17-1) W-L - BR S2 solenoid signal 2nd or 3rd gear 11 to 14 V
    S2 (E16-10) - E1 (E17-1) W-L - BR S2 solenoid signal 1st, 4th or 5th gear Below 1 V
    S1 (E16-11) - E1 (E17-1) GR - BR S1 solenoid signal 1st or 2nd gear 11 to 14 V
    S1 (E16-11) - E1 (E17-1) GR - BR S1 solenoid signal 3rd, 4th or 5th gear Below 1 V
    SLT+ (E16-13) - SLT- (E16-12) G-Y - L-B SLT solenoid signal Engine is idling

    Pulse generation

    (see waveform 2)
    SR (E16-9) - E1 (E17-1) G - BR SR solenoid signal 5th gear 11 to 14 V
    SR (E16-9) - E1 (E17-1) G - BR SR solenoid signal 1st gear Below 1 V
    SL2+ (E16-17) - SL2- (E16-16) G-B - G-R SL2 solenoid signal Engine is idling

    Pulse generation

    (see waveform 3)
    SL1+ (E16-19) - SL1- (E16-18) G-W - P-L SL1 solenoid signal Engine is idling

    Pulse generation

    (see waveform 4)
    THO1 (E16-24) - E2 (E15-28) W-R - BR No. 1 ATF temperature sensor signal No. 1 ATF temperature: 115°C (239°F) or more Below 1.5 V
    THO2 (E16-32) - E2 (E15-28) B-Y - BR No. 2 ATF temperature sensor signal No. 2 ATF temperature: 115°C (239°F) or more Below 1.5 V
    SP2+ (E16-34) - SP2- (E16-26) V - P Speed sensor (SP2) signal Vehicle speed 20 km/h (12 mph)

    Pulse generation

    (see waveform 5)
    NT+ (E16-35) - NT- (E16-27) L - Y Speed sensor (NT) signal Engine is idling

    Pulse generation

    (see waveform 6)
    NSW (E16-8) - E1 (E17-1) L-Y - BR PNP switch signal Ignition switch ON and shift lever on P or N Below 2 V
    NSW (E16-8) - E1 (E17-1) L-Y - BR PNP switch signal Ignition switch ON and shift lever not on P or N 11 to 14 V

  2. Waveform 1 (Reference)

    A01DVSBE03
    Item Content
    Symbols (Terminal No.) SLU+ (E16-15) - SLU- (E16-14)
    Tool Setting 5 V/DIV., 1 msec./DIV.
    Condition 4th (lock-up) or 5th (lock-up) gear

  3. Waveform 2 (Reference)

    A01DVSBE03
    Item Content
    Symbols (Terminal No.) SLT+ (E16-13) - SLT- (E16-12)
    Tool Setting 5 V/DIV., 1 msec./DIV.
    Condition Engine is idling

  4. Waveform 3 (Reference)

    A01DVSBE03
    Item Content
    Symbols (Terminal No.) SL2+ (E16-17) - SL2- (E16-16)
    Tool Setting 5 V/DIV., 1 msec./DIV.
    Condition Engine is idling

  5. Waveform 4 (Reference)

    A01DVSBE03
    Item Content
    Symbols (Terminal No.) SL1+ (E16-19) - SL1- (E16-18)
    Tool Setting 5 V/DIV., 1 msec./DIV.
    Condition Engine is idling

  6. Waveform 5 (Reference)

    A01DYRQE03
    Item Content
    Symbols (Terminal No.) SP2+ (E16-34) - SP2- (E16-26)
    Tool Setting 2 V/DIV., 2 msec./DIV.
    Condition Vehicle speed 20 km/h (12 mph)

  7. Waveform 6 (Reference)

    A01E0I2E02
    Item Content
    Symbols (Terminal No.) NT+ (E16-35) - NT- (E16-27)
    Tool Setting 1 V/DIV., 2 msec./DIV.
    Condition Engine is idling