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Terminals Of Ecu

  1. TCM 
    Fig 1: Identifying Connector Terminals Of TCM
    G04948277Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    HINT:

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

    In the table, first follow the information under "Condition". Look under "Terminal No. (Symbols)" 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.

    TCM TERMINALS REFERENCE

    Terminal No. (Symbols) 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 on 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 on P Below 1 V
    E5-34 (R) - E5-7 (E1) G - BR R shift position switch signal Engine switch on (IG) and shift lever on R 11 to 14 V
    E5-34 (R) - E5-7 (E1) G - BR R shift position switch signal Engine switch on (IG) and shift lever not on R Below 1 V
    E5-33 (N) - E5-7 (E1) G-R - BR N shift position switch signal Engine switch on (IG) and shift lever on N 11 to 14 V
    E5-33 (N) - E5-7 (E1) G-R - BR N shift position switch signal Engine switch on (IG) and shift lever not on N Below 1 V
    E5-25 (D) - E5-7 (E1) G-Y - BR D shift position switch signal Engine switch on (IG) and shift lever on D or S 11 to 14 V
    E5-25 (D) - E5-7 (E1) G-Y - BR D shift position switch signal Engine switch on (IG) and shift lever not on 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 more 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 WAVEFORM 1 )
    E6-4 (SL2+) - E6-3 (SL2-) BR - Y Shift solenoid valve SL2 signal 5th, 6th, 7th or 8th gear Pulse generation (see WAVEFORM 2 )
    E6-2 (SL3+) - E6-1 (SL3-) L - B Shift solenoid valve SL3 signal 3rd or 7th gear Pulse generation (see WAVEFORM 3 )
    E7-7 (SL4+) - E7-6 (SL4-) B - W Shift solenoid valve SL4 signal 4th or 6th gear Pulse generation (see WAVEFORM 4 )
    E7-5 (SL5+) - E7-4 (SL5-) L - BR Shift solenoid valve SL5 signal 2nd or 8th gear Pulse generation (see WAVEFORM 5 )
    E7-3 (SLT+) - E7-2 (SLT-) B - G Shift solenoid valve SLT signal Engine idle speed Pulse generation (see 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 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) - E7-25 (NTO) G-W - BR Speed sensor NT signal Engine idle speed (shift lever on P or N) Pulse generation (see WAVEFORM 8 )
    E7-28 (NC3B) - E7-22 (NT3O) G - R Speed sensor NC3 signal Engine idle speed (shift lever on P or N) Pulse generation (see WAVEFORM 9 )
    E7-26 (SP2B) - E7-18 (SP2O) Y - L Speed sensor SP2 signal Vehicle speed 20 km/h (12 mph) Pulse generation (see 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 on 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 not on P or N position 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 WAVEFORM 11 )
    A12-28 (CAN-) -E5-7 (E1) W - BR CAN communication line Engine switch on (IG) Pulse generation (see WAVEFORM 12 )
    1. Using an oscilloscope, check the waveform 1.
      Fig 2: Identifying Waveform 1
      G04948278Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Reference: 

      WAVEFORM 1 REFERENCE

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

      Reference: 

      WAVEFORM 2 REFERENCE

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

      Reference: 

      WAVEFORM 3 REFERENCE

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

      Reference: 

      WAVEFORM 4 REFERENCE

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

      Reference: 

      WAVEFORM 5 REFERENCE

      Item Content
      Terminal No. (Symbols) E7-5 (SL5+) - E7-4 (SL5-)
      Tool setting 5 V/DIV., 1 msec/DIV.
      Condition 2nd or 8th gear
    6. Using an oscilloscope, check the waveform 6.
      Fig 7: Identifying Waveform 6
      G04948278Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Reference: 

      WAVEFORM 6 REFERENCE

      Item Content
      Terminal No. (Symbols) E7-3 (SLT+) - E7-2 (SLT-)
      Tool setting 5 V/DIV., 1 msec./DIV.
      Condition Engine idle speed
    7. Using an oscilloscope, check the waveform 7.
      Fig 8: Identifying Waveform 7
      G04948284Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Reference: 

      WAVEFORM 7 REFERENCE

      Item Content
      Terminal No. (Symbols) 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)
    8. Using an oscilloscope, check the waveform 8.
      Fig 9: Identifying Waveform 8
      G04948285Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Reference: 

      WAVEFORM 8 REFERENCE

      Item Content
      Terminal No. (Symbols) E7-31 (NTB) - E7-25 (NTO)
      Tool setting 5 V/DIV., 2 msec/DIV.
      Condition Engine idle speed (shift lever on P or N)
    9. Using an oscilloscope, check the waveform 9.
      Fig 10: Identifying Waveform 9
      G04948285Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Reference: 

      WAVEFORM 9 REFERENCE

      Item Content
      Terminal No. (Symbols) E7-28 (NC3B) - E7-22 (NC3O)
      Tool setting 5 V/DIV., 2 msec./DIV.
      Condition Engine idle speed (shift lever on P or N)
    10. Using an oscilloscope, check the waveform 10.
      Fig 11: Identifying Waveform 10
      G04948285Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Reference: 

      WAVEFORM 10 REFERENCE

      Item Content
      Terminal No. (Symbols) E7-26 (SP2B) - E7-18 (SP2O)
      Tool setting 5V/DIV.,2msec./DIV.
      Condition Engine idle speed (shift lever on P or N)
    11. Using an oscilloscope, check the waveform 11.
      Fig 12: Identifying Waveform 11
      G04948288Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Reference: 

      WAVEFORM 11 REFERENCE

      Item Content
      Terminal No. (Symbols) A12 - 18 (CAN+) - E5-7 (E1)
      Tool setting 1 V/DIV, 10 msec./DIV.
      Condition Engine is stopped, engine switch on (IG)
    12. Using an oscilloscope, check the waveform 12.
      Fig 13: Identifying Waveform 12
      G04948289Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Reference: 

      WAVEFORM 12 REFERENCE

      Item Content
      Terminal No. (Symbols) A12 - 28 (CAN-) - E5-7 (E1)
      Tool setting 1 V/DIV, 10 msec/DIV.
      Condition Engine is stopped, engine switch on (IG)
  2. ECM 
    Fig 14: Identifying Connector Terminals Of ECM
    G04948290Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    HINT:

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

    In the table, first follow the information under "Condition".

    Look under "Terminal No. (Symbols)" for the terminals to be inspected. The standard voltage between the terminals is shown under "Specified Condition".

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

    ECM TERMINALS REFERENCE

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