AUTOMATIC TRANSMISSION SYSTEM TERMINALS OF ECU


  1. TCM

    A01634DE03

    Tech Tips

    Each TCM terminal standard voltage 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 between the terminals is shown under "Specified Condition".

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

    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    A58-3 (P) - A58-2 (E1) W - W-B Park position switch signal Engine switch on (IG) and shift lever in P 11 to 14 V
    A58-3 (P) - A58-2 (E1) W - W-B Park position switch signal Engine switch on (IG) and shift lever not in P Below 1 V
    A58-11 (R) - A58-2 (E1) G - W-B R shift position switch signal Engine switch on (IG) and shift lever in R 11 to 14 V
    A58-11 (R) - A58-2 (E1) G - W-B R shift position switch signal Engine switch on (IG) and shift lever not in R Below 1 V
    A58-10 (N) - A58-2 (E1) G-R - W-B N shift position switch signal Engine switch on (IG) and shift lever in N 11 to 14 V
    A58-10 (N) - A58-2 (E1) G-R - W-B N shift position switch signal Engine switch on (IG) and shift lever not in N Below 1 V
    A58-20 (D) - A58-2 (E1) G-Y - W-B D shift position switch signal Engine switch on (IG) and shift lever in D or M 11 to 14 V
    A58-20 (D) - A58-2 (E1) G-Y - W-B D shift position switch signal Engine switch on (IG) and shift lever not in D or M Below 1 V
    A58-23 (STP) - A58-2 (E1) R-B - W-B Stop light switch signal Brake pedal is depressed 7.5 to 14 V
    A58-23 (STP) - A58-2 (E1) R-B - W-B Stop light switch signal Brake pedal is released Below 1 V
    E59-12 (THO1) - E59-13 (E2) G-Y - BR ATF temperature sensor signal ATF temperature 115°C (239°F) or more Below 1.5 V
    E59-6 (SL1+) - E59-5 (SL1-) B - Y-G Shift solenoid valve SL1 signal 1st, 2nd, 3rd, 4th or 5th gear

    Pulse generation

    (see waveform 1)
    E59-4 (SL2+) - E59-14 (SL2-) G-W - Y Shift solenoid valve SL2 signal 5th, 6th, 7th or 8th gear

    Pulse generation

    (see waveform 2)
    E59-26 (SL3+) - E59-25 (SL3-) L - G-R Shift solenoid valve SL3 signal 3rd or 7th gear

    Pulse generation

    (see waveform 3)
    E59-17 (SL4+) - E59-16 (SL4-) L-W - W Shift solenoid valve SL4 signal 4th or 6th gear

    Pulse generation

    (see waveform 4)
    E59-3 (SL5+) - E59-10 (SL5-) V - GR Shift solenoid valve SL5 signal 2nd or 8th gear

    Pulse generation

    (see waveform 5)
    E59-1 (SLT+) - E59-7 (SLT-) P - G-B Shift solenoid valve SLT signal Engine idling

    Pulse generation

    (see waveform 6)
    E59-2 (SLU+) - E59-8 (SLU-) L-Y - B-W Shift solenoid valve SLU signal

    D position:

    4th, 5th, 6th, 7th or 8th gear

    (Flex lock-up ON and Lock-up ON )

    M position:

    2nd, 3rd, 4th, 5th, 6th, 7th or 8th gear

    (Lock-up ON )

    Pulse generation

    (see waveform 7)
    E59-24 (SL) - A58-2 (E1) L-R - W-B Shift solenoid valve SL signal

    D position:

    4th, 5th, 6th, 7th or 8th gear

    (Flex lock-up ON and Lock-up ON )

    M position:

    2nd, 3rd, 4th, 5th, 6th, 7th or 8th gear

    (Lock-up ON )

    		 11 to 14 V
    E59-15 (SR) - A58-2 (E1) G - W-B Shift solenoid valve SR signal All gears 11 to 14 V
    E59-21 (NTB) - A58-2 (E1) Y - W-B Power source for sensor (specific voltage) Engine switch on (IG) 11 to 14 V
    E59-20 (NTO) - A58-2 (E1) L - W-B Speed sensor NT signal Engine idling (shift lever in P or N)

    Pulse generation

    (see waveform 8)
    E59-19 (NC3B) - A58-2 (E1) G - W-B Power source for sensor (specific voltage) Engine switch on (IG) 11 to 14 V
    E59-18 (NC3O) - A58-2 (E1) R - W-B Speed sensor NC3 signal 1st, 3rd, 4th, 5th, 6th or 7th gear

    Pulse generation

    (see waveform 9)
    E59-23 (SP2B) - A58-2 (E1) W - W-B Power source for sensor (specific voltage) Engine switch on (IG) 11 to 14 V
    E59-22 (SP2O) - A58-2 (E1) G - W-B Speed sensor SP2 signal Vehicle speed 20 km/h (12 mph)

    Pulse generation

    (see waveform 10)
    E59-9 (TPS1) - A58-2 (E1) R-W - W-B Oil pressure switch signal 6th to 8th gear 11 to 14 V
    E59-9 (TPS1) - A58-2 (E1) R-W - W-B Oil pressure switch signal 1st to 5th gear Below 1 V
    A58-15 (STA) - A58-2 (E1) L-R - W-B Starter signal Cranking (shift lever in P or N, engine switch start) 11 to 14 V
    A58-15 (STA) - A58-2 (E1) L-R - W-B Starter signal Engine switch on (IG) and shift lever P or N Below 2 V
    A58-16 (IG2) - A58-2 (E1) R - W-B Engine switch Engine switch on (IG) 11 to 14 V
    A58-6 (BATT) - A58-2 (E1) L - W-B Battery (for measuring battery voltage and for TCM memory) Always 11 to 14 V
    A58-5 (+B) - A58-2 (E1) B-R - W-B Power source of TCM Engine switch on (IG) 11 to 14 V
    A58-21 (CAN+) - A58-2 (E1) B - W-B CAN communication line Engine switch on (IG)

    Pulse generation

    (see waveform 11)
    A58-13 (CAN-) - A58-2 (E1) W - W-B CAN communication line Engine switch on (IG)

    Pulse generation

    (see waveform 12)
    A58-2 (E1) - Body ground W-B - Body ground Ground Always Below 1 Ω
    A58-1 (E01) - Body ground W-B - Body ground Ground Always Below 1 Ω

    1. A015YWNE01

      Using an oscilloscope, check waveform 1.

      Reference
      Item Content
      Terminal No. (Symbol) E59-6 (SL1+) - E59-5 (SL1-)
      Tool setting 5 V/DIV., 1 msec./DIV.
      Condition 1st, 2nd, 3rd, 4th or 5th gear
    2. A015YWNE01

      Using an oscilloscope, check waveform 2.

      Reference
      Item Content
      Terminal No. (Symbol) E59-4 (SL2+) - E59-14 (SL2-)
      Tool setting 5 V/DIV., 1 msec./DIV.
      Condition 5th, 6th, 7th or 8th gear
    3. A015YWNE01

      Using an oscilloscope, check waveform 3.

      Reference
      Item Content
      Terminal No. (Symbol) E59-26 (SL3+) - E59-25 (SL3-)
      Tool setting 5 V/DIV., 1 msec./DIV.
      Condition 3rd or 7th gear
    4. A015YWNE01

      Using an oscilloscope, check waveform 4.

      Reference
      Item Content
      Terminal No. (Symbol) E59-17 (SL4+) - E59-16 (SL4-)
      Tool setting 5 V/DIV., 1 msec./DIV.
      Condition 4th or 6th gear
    5. A015YWNE01

      Using an oscilloscope, check waveform 5.

      Reference
      Item Content
      Terminal No. (Symbol) E59-3 (SL5+) - E59-10 (SL5-)
      Tool setting 5 V/DIV., 1 msec./DIV.
      Condition 2nd or 8th gear
    6. A015YWNE01

      Using an oscilloscope, check waveform 6.

      Reference
      Item Content
      Terminal No. (Symbol) E59-1 (SLT+) - E59-7 (SLT-)
      Tool setting 5 V/DIV., 1 msec./DIV.
      Condition Engine idling
    7. A015ZUZE02

      Using an oscilloscope, check waveform 7.

      Reference
      Item Content
      Terminal No. (Symbol) E59-2 (SLU+) - E59-8 (SLU-)
      Tool setting 5 V/DIV., 1 msec./DIV.
      Condition

      D position:

      4th, 5th, 6th, 7th or 8th gear

      (Flex lock-up ON and Lock-up ON )

      M position:

      2nd, 3rd, 4th, 5th, 6th, 7th or 8th gear

      (Lock-up ON )
    8. A015YYCE01

      Using an oscilloscope, check waveform 8.

      Reference
      Item Content
      Terminal No. (Symbol) E59-20 (NTO) - A58-2 (E1)
      Tool setting 1 V/DIV., 2 msec./DIV.
      Condition Engine idling (shift lever in P or N)
    9. A015YYCE01

      Using an oscilloscope, check waveform 9.

      Reference
      Item Content
      Terminal No. (Symbol) E59-18 (NC3O) - A58-2 (E1)
      Tool setting 1 V/DIV., 2 msec./DIV.
      Condition 1st, 3rd, 4th, 5th, 6th or 7th gear
    10. A015YYCE01

      Using an oscilloscope, check waveform 10.

      Reference
      Item Content
      Terminal No. (Symbol) E59-22 (SP2O) - A58-2 (E1)
      Tool setting 1 V/DIV., 2 msec./DIV.
      Condition Vehicle speed 20 km/h (12 mph)
    11. A015ZUBE09

      Using an oscilloscope, check waveform 11.

      Reference
      Item Content
      Terminal No. (Symbol) A58-21 (CAN+) - A58-2 (E1)
      Tool setting 1 V/DIV., 10 msec./DIV.
      Condition Engine is stopped, engine switch on (IG)
    12. A01607UE09

      Using an oscilloscope, check waveform 12.

      Reference
      Item Content
      Terminal No. (Symbol) A58-13 (CAN-) - A58-2 (E1)
      Tool setting 1 V/DIV., 10 msec./DIV.
      Condition Engine is stopped, engine switch on (IG)

  2. ECM

    A0160PRE06

    Tech Tips

    Each ECM terminal standard voltage 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 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
    A6-16 (S) - E6-1 (E1) W-G - W-B M shift position switch signal Engine switch on (IG) and shift lever in M 11 to 14 V
    A6-16 (S) - E6-1 (E1) W-G - W-B M shift position switch signal Engine switch on (IG) and shift lever not in M Below 1 V
    A6-8 (SFTU) - E6-1 (E1) Y - W-B Up-shift shift position switch signal Engine switch on (IG) 11 to 14 V
    A6-8 (SFTU) - E6-1 (E1) Y - W-B Up-shift shift position switch signal

    • Engine switch on (IG) and shift lever in "+" (up-shift)


    • Engine switch on (IG) and "+" paddle switch is operated

    		 Below 1 V
    A6-7 (SFTD) - E6-1 (E1) R-B - W-B Down-shift position switch signal Engine switch on (IG) 11 to 14 V
    A6-7 (SFTD) - E6-1 (E1) R-B - W-B Down-shift position switch signal

    • Engine switch on (IG) and shift lever in "-" (down-shift)


    • Engine switch on (IG) and "-" paddle switch operated

    		 Below 1 V
    A5-14 (KD) - E6-1 (E1) V - W-B Kick-down switch signal Engine switch on (IG) and Accelerator pedal depressed Below 1 V
    A5-14 (KD) - E6-1 (E1) V - W-B Kick-down switch signal Engine switch on (IG) and Accelerator pedal released 11 to 14 V

  3. Cowl Side Junction Block ECU RH (Main Body ECU RH)

    A0160JRE09

    Tech Tips

    Each ECU terminal standard voltage is shown in the table below.

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

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

    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    J75-18 (PWR) - Body ground LG SPORT switch signal Engine switch on (IG) and Pattern select switch pressed continuously (SPORT) 0 to 1.5 V
    ↑ ↑ ↑ Engine switch on (IG) and Pattern select switch released (SPORT) Pulse generation *1
    J75-17 (SNOW) - Body ground P SNOW switch signal Engine switch on (IG) and Pattern select switch pressed continuously (SNOW) 0 to 1.5 V
    ↑ ↑ ↑ Engine switch on (IG) and Pattern select switch released (SNOW) Pulse generation *1

    Tech Tips

    *1: Voltage is input intermittently as this is an intermittent circuit. (Voltage varies between a peak of 7.5 to 14 V and a low of 0 to1.5 V.)