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


  1. CHECK ECM

    A01DTEIE03

    Tech Tips

    The standard voltage at 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 inspect. The standard voltage 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
    G55-16 (L4) - C36-12 (E1) R - BR L4 position signal

    • Ignition switch ON

    • Transfer in L4

    		 Below 1 V

    • Ignition switch ON

    • Transfer not in L4

    		 11 to 14 V
    C35-2 (NSW) - C36-12 (E1) B - BR PNP switch signal

    • Ignition switch ON

    • Shift lever in P or N

    		 Below 1 V

    • Ignition switch ON

    • Shift lever not in P or N

    		 11 to 14 V
    C34-35 (P) - C36-12 (E1) L - BR P shift position switch signal

    • Ignition switch ON

    • Shift lever in P

    		 11 to 14 V

    • Ignition switch ON

    • Shift lever not in P

    		 Below 1 V
    C34-28 (R) - C36-12 (E1) R - BR R shift position switch signal

    • Ignition switch ON

    • Shift lever in R

    		 11 to 14 V

    • Ignition switch ON

    • Shift lever not in R

    		 Below 1 V
    C34-29 (N) - C36-12 (E1) G - BR N shift position switch signal

    • Ignition switch ON

    • Shift lever in N

    		 11 to 14 V

    • Ignition switch ON

    • Shift lever not in N

    		 Below 1 V
    C34-27 (D) - C36-12 (E1) B - BR D shift position switch signal

    • Ignition switch ON

    • Shift lever in D

    		 11 to 14 V

    • Ignition switch ON

    • Shift lever not in D

    		 Below 1 V
    G56-24 (S) - C36-12 (E1) V - BR S shift position switch signal

    • Ignition switch ON

    • Shift lever in S

    		 11 to 14 V

    • Ignition switch ON

    • Shift lever not in S

    		 Below 1 V
    G56-16 (SFTU) - C36-12 (E1) GR - BR Up-shift position switch signal

    • Ignition switch ON

    • Shift lever in S

    		 11 to 14 V

    • Ignition switch ON

    • Shift lever "+" (up-shift)

    		 Below 1 V
    G56-22 (SFTD) - C36-12 (E1) LG - BR Down-shift position switch signal

    • Ignition switch ON

    • Shift lever in S

    		 11 to 14 V

    • Ignition switch ON

    • Shift lever "-" (down-shift)

    		 Below 1 V
    C35-36 (S1) - C36-12 (E1) L - BR S1 solenoid signal Ignition switch ON 11 to 14 V
    1st or 2nd gear 11 to 14 V
    3rd, 4th or 5th gear Below 1 V
    C34-33 (S2) - C36-12 (E1) L-W - BR S2 solenoid signal Ignition switch ON Below 1 V
    2nd or 3rd gear 11 to 14 V
    1st, 4th or 5th gear Below 1 V
    C34-31 (SR) - C36-12 (E1) R - BR SR solenoid signal Ignition switch ON Below 1 V
    5th gear 11 to 14 V
    1st gear Below 1 V
    C36-33 (SL1+) - C36-32 (SL1-) V - R-B SL1 solenoid signal Engine idling Pulse generation
    C35-31 (SL2+) - C36-34 (SL2-) LG - P-L SL2 solenoid signal Engine idling Pulse generation
    C35-34 (SLT+) - C35-35 (SLT-) G-Y - L-B SLT solenoid signal Engine idling Pulse generation
    C35-33 (SLU+) - C35-32 (SLU-) P - LG SLU solenoid signal 4th gear (lock-up) or 5th gear (lock-up) Pulse generation
    C36-5 (THO1) - C35-8 (ETHW) V - W-R No. 1 ATF temperature sensor signal No. 1 ATF temperature 115°C (239°F) or higher Below 1.5 V
    C36-11 (THO2) - C35-8 (ETHW) L - W-R No. 2 ATF temperature sensor signal No. 2 ATF temperature 115°C (239°F) or higher Below 1.5 V
    C36-9 (SP2+) - C36-10 (SP2-) B - W Speed sensor SP2 signal Vehicle speed 20 km/h (12 mph)

    Pulse generation

    (See waveform 1)
    C36-3 (NT+) - C36-4 (NT-) L - W Speed sensor NT signal

    Engine idling

    (shift lever in P or N)

    Pulse generation

    (See waveform 2)
    G55-21 (SNWI) - C36-12 (E1) GR - BR Pattern select (2nd) switch signal

    • Ignition switch ON

    • Pattern select (2nd) switch pushed

    		 Below 1 V

    • Ignition switch ON

    • Pattern select (2nd) switch not pushed

    		 11 to 14 V
    G56-32 (CANH) - C36-12 (E1)

    R - BR*1

    LG - BR*2

    		 CAN communication line Ignition switch ON

    Pulse generation

    (See waveform 3)
    G56-31 (CANL) - C36-12 (E1) W - BR CAN communication line Ignition switch ON

    Pulse generation

    (See waveform 4)

    • *1: for LHD

    • *2: for RHD


    1. A01DTDCE01

      Using an oscilloscope, check waveform 1.

      Reference
      Terminal No. (Symbol) Tool Setting Condition
      C36-9 (SP2+) - C36-10 (SP2-) 2 V/DIV., 20 msec./DIV. Vehicle speed 20 km/h (12 mph)
    2. A01DQS0E01

      Using an oscilloscope, check waveform 2.

      Reference
      Terminal No. (Symbol) Tool Setting Condition
      C36-3 (NT+) - C36-4 (NT-) 1 V/DIV., 2 msec./DIV. Engine idling (shift lever in P or N)
    3. A01DQX1E01

      Using an oscilloscope, check waveform 3.

      Reference
      Terminal No. (Symbol) Tool Setting Condition
      G56-32 (CANH) - C36-12 (E1) 1 V/DIV., 10 μsec./DIV. Ignition switch ON
    4. A01DP9UE01

      Using an oscilloscope, check waveform 4.

      Reference
      Terminal No. (Symbol) Tool Setting Condition
      G56-31 (CANL) - C36-12 (E1) 1 V/DIV., 10 μsec./DIV. Ignition switch ON