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Terminals Of Ecu

  1. TCM 
    Fig 1: Identifying ECU Connector Terminal
    G04948277Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    HINT:

    The standard voltage of each TCM 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 between the terminals is shown under "Specified Condition".

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

    TERMINAL DESCRIPTION

    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    E5-26 (P) - E5-7 (E1) W - BR Park position switch signal Engine switch on (IG) and shift lever in P 11 to 14 V
    E5-26 (P) - E5-7 (E1) W - BR Park position switch signal Engine switch on (IG) and shift lever not in P Below 1 V
    E5-34 (R) - E5-7 (E1) G - BR R position switch signal Engine switch on (IG) and shift lever in R 11 to 14 V
    E5-34 (R) - E5-7 (E1) G - BR R position switch signal Engine switch on (IG) and shift lever not in R Below 1 V
    E5-33 (N) - E5-7 (E1) G-R - BR N position switch signal Engine switch on (IG) and shift lever in N 11 to 14 V
    E5-33 (N) - E5-7 (E1) G-R - BR N position switch signal Engine switch on (IG) and shift lever not in N Below 1 V
    E5-25 (D) - E5-7 (E1) G-Y - BR D position switch signal Engine switch on (IG) and shift lever in D or S 11 to 14 V
    E5-25 (D) - E5-7 (E1) G-Y - BR D position switch signal Engine switch on (IG) and shift lever not in D or S Below 1 V
    A12-2 (STP) - E5-7 (E1) L - BR Stop light switch signal Brake pedal is depressed 7.5 to 14 V
    A12-2 (STP) - E5-7 (E1) L - BR Stop light switch signal Brake pedal is released Below 1 V
    E6-27 (THO1) - E6-35 (E2) G-Y - BR ATF temperature sensor signal ATF temperature 115°C (239°F) or higher Below 1.5 V
    E6-6 (SL1+) - E6-5 (SL1-) Y - L Shift solenoid valve SL1 signal 1st, 2nd, 3rd, 4th or 5th gear Pulse generation (see  a waveform 1)
    E6-4 (SL2+) - E6-3 (SL2-) BR - Y Shift solenoid valve SL2 signal 5th, 6th, 7th or 8th gear Pulse generation (see  b waveform 2)
    E6-2 (SL3+) - E6-1 (SL3-) L - B Shift solenoid valve SL3 signal 3rd or 7th gear Pulse generation (see  c waveform 3)
    E7-7 (SL4+) - E7-6 (SL4-) B - W Shift solenoid valve SL4 signal 4th or 6th gear Pulse generation (see  d waveform 4)
    E7-5 (SL5+) - E7-4 (SL5-) L - BR Shift solenoid valve SL5 signal 2nd or 8th gear Pulse generation (see  e waveform 5)
    E7-3 (SLT+) - E7-2 (SLT-) B - G Shift solenoid valve SLT signal Engine idling Pulse generation (see  f waveform 6)
    E7-1 (SLU+) - E7-8 (SLU-) W - L-R Shift solenoid valve SLU signal 4th, 5th, 6th, 7th or 8th gear (Flex lock-up on) Pulse generation (see  g waveform 7)
    E6-7 (SL) - E5-7 (E1) L-R - BR Shift solenoid valve SL signal All gears 11 to 14 V
    E7-17 (SR) - E5-7 (E1) G - BR Shift solenoid valve SR signal All gears 11 to 14 V
    E7-31 (NTB) - E5-7 (E1) G-W - BR Power source for sensor (fixed voltage) Engine switch on (IG) 11 to 14 V
    E7-25 (NTO) - E5-7 (E1) BR - BR Speed sensor NT signal Engine idling (shift lever in P or N) Pulse generation (see  h waveform 8)
    E7-28 (NC3B) - E5-7 (E1) G - BR Power source for sensor (fixed voltage) Engine switch on (IG) 11 to 14 V
    E7-22 (NC3O) - E5-7 (E1) R - BR Speed sensor NC3 signal 1st, 3rd, 4th, 5th, 6th or 7th gear Pulse generation (see  i waveform 9)
    E7-26 (SP2B) - E5-7 (E1) Y - BR Power source for sensor (fixed voltage) Engine switch on (IG) 11 to 14 V
    E7-18 (SP2O) - E5-7 (E1) L - BR Speed sensor SP2 signal Vehicle speed 20 km/h (12 mph) Pulse generation (see  j waveform 10)
    E6-25 (TPS1) - E5-7 (E1) L - BR Oil pressure switch signal 6th to 8th gear 11 to 14 V
    E6-25 (TPS1) - E5-7 (E1) L - BR Oil pressure switch signal 1st to 5th gear Below 1 V
    A12-3 (STA) - E5-7 (E1) Y - BR Starter signal Cranking (shift lever in P or N, engine switch start) 11 to 14 V
    A12-3 (STA) - E5-7 (E1) Y - BR Starter signal Engine switch on (IG) and shift lever in P or N Below 2 V
    A12-4 (IG2) - E5-7 (E1) R - BR Engine switch Engine switch on (IG) 11 to 14 V
    A12-7 (BATT) - E5-7 (E1) LG - BR Battery (for measuring battery voltage and for TCM memory) Always 11 to 14 V
    A12-6 (+B) - E5-7 (E1) B-W - BR Power source of TCM Engine switch on (IG) 11 to 14 V
    A12-18 (CAN+) - E5-7 (E1) B - BR CAN communication line Engine switch on (IG) Pulse generation (see  k waveform 11)
    A12-28 (CAN-) - E5-7 (E1) W - BR CAN communication line Engine switch on (IG) Pulse generation (see  l waveform 12)
    1. Using an oscilloscope, check waveform 1.

      Reference 

      REFERENCE CHART

      Item Content
      Terminal No. (Symbol) E6-6 (SL1+) - E6-5 (SL1-)
      Tool setting 5 V/DIV., 1 msec./DIV.
      Condition 1st, 2nd, 3rd, 4th or 5th gear
      Fig 2: Identifying Waveform 1
      G04948278Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using an oscilloscope, check waveform 2.

      Reference 

      REFERENCE CHART

      Item Content
      Terminal No. (Symbol) E6-4 (SL2+) - E6-3 (SL2-)
      Tool setting 5 V/DIV., 1 msec./DIV.
      Condition 5th, 6th, 7th or 8th gear
      Fig 3: Identifying Waveform 2
      G04948278Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Using an oscilloscope, check waveform 3.

      Reference 

      REFERENCE CHART

      Item Content
      Terminal No. (Symbol) E6-2 (SL3+) - E6-1 (SL3-)
      Tool setting 5 V/DIV., 1 msec./DIV.
      Condition 3rd or 7th gear
      Fig 4: Identifying Waveform 3
      G04948278Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Using an oscilloscope, check waveform 4.

      Reference 

      REFERENCE CHART

      Item Content
      Terminal No. (Symbol) E7-7 (SL4+) - E7-6 (SL4-)
      Tool setting 5 V/DIV., 1 msec./DIV.
      Condition 4th or 6th gear
      Fig 5: Identifying Waveform 4
      G04948278Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Using an oscilloscope, check waveform 5.

      Reference 

      REFERENCE CHART

      Item Content
      Terminal No. (Symbol) E7-5 (SL5+) - E7-4 (SL5-)
      Tool setting 5 V/DIV., 1 msec./DIV.
      Condition 2nd or 8th gear
      Fig 6: Identifying Waveform 5
      G04948278Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Using an oscilloscope, check waveform 6.

      Reference 

      REFERENCE CHART

      Item Content
      Terminal No. (Symbol) E7-3 (SLT+) - E7-2 (SLT-)
      Tool setting 5 V/DIV., 1 msec./DIV.
      Condition Engine idling
      Fig 7: Identifying Waveform 6
      G04948278Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Using an oscilloscope, check waveform 7.

      Reference 

      REFERENCE CHART

      Item Content
      Terminal No. (Symbol) E7-1 (SLU+) - E7-8 (SLU-)
      Tool setting 5 V/DIV., 1 msec./DIV.
      Condition 4th, 5th, 6th, 7th or 8th gear (Flex lock-up on)
      Fig 8: Identifying Waveform 7
      G04948284Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    8. Using an oscilloscope, check waveform 8.

      Reference 

      REFERENCE CHART

      Item Content
      Terminal No. (Symbol) E7-25 (NTO) - E5-7 (E1)
      Tool setting 5 V/DIV., 2 msec./DIV.
      Condition Engine idling (shift lever in P or N)
      Fig 9: Identifying Waveform 8
      G06186814Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    9. Using an oscilloscope, check waveform 9.

      Reference 

      REFERENCE CHART

      Item Content
      Terminal No. (Symbol) E7-22 (NC3O) - E5-7 (E1)
      Tool setting 5 V/DIV., 2 msec./DIV.
      Condition 1st, 3rd, 4th, 5th, 6th or 7th gear
      Fig 10: Identifying Waveform 9
      G06186814Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    10. Using an oscilloscope, check waveform 10.

      Reference 

      REFERENCE CHART

      Item Content
      Terminal No. (Symbol) E7-18 (SP2O) - E5-7 (E1)
      Tool setting 5 V/DIV., 2 msec./DIV.
      Condition Vehicle speed 20 km/h (12 mph)
      Fig 11: Identifying Waveform 10
      G06186816Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    11. Using an oscilloscope, check waveform 11.

      Reference 

      REFERENCE CHART

      Item Content
      Terminal No. (Symbol) A12-18 (CAN+) - E5-7 (E1)
      Tool setting 1 V/DIV., 10 msec./DIV.
      Condition Engine switch on (IG)
      Fig 12: Identifying Waveform 11
      G06186817Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    12. Using an oscilloscope, check waveform 12.

    Reference 

    REFERENCE CHART

    Item Content
    Terminal No. (Symbol) A12-28 (CAN-) - E5-7 (E1)
    Tool setting 1 V/DIV., 10 msec./DIV.
    Condition Engine switch on (IG)
    Fig 13: Identifying Waveform 12
    G06186818Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. ECM 
    Fig 14: Identifying ECM Connector Terminal
    G04948290Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    HINT:

    The standard voltage 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 between the terminals is shown under "Specified Condition".

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

    TERMINAL DESCRIPTION

    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    A13-16 (S) - E3-1 (E1) G - W-B S position switch signal Engine switch on (IG) and shift lever in S 11 to 14 V
    A13-16 (S) - E3-1 (E1) G - W-B S position switch signal Engine switch on (IG) and shift lever not in S Below 1 V
    A13-8 (SFTU) - E3-1 (E1) Y - W-B Up-shift position switch signal Engine switch on (IG) and shift lever in S 11 to 14 V
    A13-8 (SFTU) - E3-1 (E1) Y - W-B Up-shift position switch signal Engine switch on (IG) and shift lever in "+" (up-shift) Below 1 V
    A13-7 (SFTD) - E3-1 (E1) L - W-B Down-shift position switch signal Engine switch on (IG) and shift lever in S 11 to 14 V
    A13-7 (SFTD) - E3-1 (E1) L - W-B Down-shift position switch signal Engine switch on (IG) and shift lever in "-" (downshift) Below 1 V
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