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Terminals Of ECM

  1. ECM 
    Fig 1: Identifying ECM Connector Terminals
    G05844313Courtesy 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 "Symbols (Terminal No.)" for the terminals to inspect. The standard voltage between the terminals is shown under "Specific Condition".

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

    VOLTAGE SPECIFICATION

    Symbols (Terminals No.) Wiring Color Terminal Description Condition Specified Condition
    L4 (E7-13) - E1 (E7-1) G-W - BR Transfer L position switch signal Ignition switch ON and transfer in L position Below 1 V
    ↑ ↑ ↑ Ignition switch ON and transfer not in L position 10 to 14 V
    TFN (E6-25) - E1 (E7-1) G - BR Transfer N position switch signal Ignition switch ON and transfer in N position Below 1 V
    ↑ ↑ ↑ Ignition switch ON and transfer not in N position 10 to 14 V
    L (E8-9) - E1 (E7-1) G-R - BR L shift position switch signal Ignition switch ON and shift lever in L position 10 to 14 V
    ↑ ↑ ↑ Ignition switch ON and shift lever not in L position Below 1 V
    2 (E8-10) - E1 (E7-1) G-R - BR 2 shift position switch signal Ignition switch ON and shift lever in 2 or L position 10 to 14 V
    ↑ ↑ ↑ Ignition switch ON and shift lever not in 2 or L position Below 1 V
    R (E8-11) - E1 (E7-1) R-B - BR R shift position switch signal Ignition switch ON and shift lever in R position 10 to 14 V
    ↑ ↑ ↑ Ignition switch ON and shift lever not in R position Below 1 V
    D (E8-21) - E1 (E7-1) G - BR D shift position switch signal Ignition switch ON and shift lever in D or 4 position 10 to 14 V
    ↑ ↑ ↑ Ignition switch ON and shift lever not in D or 4 position Below 1 V
    3 (E8-19) - E1 (E7-1) G-O - BR 3 shift position switch signal Ignition switch ON and shift lever in 3 position 10 to 14 V
    ↑ ↑ ↑ Ignition switch ON and shift lever not in 3 position Below 1 V
    4 (E8-20) - E1 (E7-1) P-L BR 4 shift position switch signal Ignition switch ON and shift lever in 4 position 10 to 14 V
    ↑ ↑ ↑ Ignition switch ON and shift lever not in 4 position Below 1 V
    STP (E9-15) - E1 (E7-1) G-Y - BR Stop light switch signal Brake pedal is depressed 10 to 14 V
    ↑ ↑ ↑ Brake pedal is released Below 1 V
    SLU+ (E6-15) - SLU- (E6-14) G-B - R-L SLU solenoid signal 5th (lock-up) gear Pulse generation (see  bwaveform 2)
    S2 (E6-10) - E1 (E7-1) W-L - BR S2 solenoid signal 2nd or 3rd gear 10 to 14 V
    ↑ ↑ ↑ 1st, 4th or 5th gear Below 1 V
    S1 (E6-11) - E1 (E7-1) GR - BR S1 solenoid signal 1st or 2nd gear 10 to 14 V
    ↑ ↑ ↑ 3rd, 4th or 5th gear Below 1 V
    SLT+ (E6-13) - SLT- (E6-12) W-G - B-Y SLT solenoid signal Engine is idling Pulse generation (see  awaveform 1)
    SR (E6-9) - E1 (E7-1) Y-R - BR SR solenoid signal 5th gear 10 to 14 V
    ↑ ↑ ↑ 1st gear Below 1 V
    SL2+ (E6-17) - SL2- (E6-16) LG-B - P-L SL2 solenoid signal Engine is idling Pulse generation (see  cwaveform 3)
    SL1+ (E6-19) - SL1- (E6-18) Y-G - L-Y SL1 solenoid signal Engine is idling Pulse generation (see  dwaveform 4)
    THO1 (E6-24) - E2 (E5-28) L-R - BR No 1 ATF temperature sensor signal No 1 ATF temperature 115°C (239°F) or more Below 1 5 V
    THO2 (E6-32) - E2 (E5-28) Y-G - BR No 2 ATF temperature sensor signal No 2 ATF temperature 115°C (239°F) or more Below 1 5 V
    SP2+ (E6-34) - SP2- (E6-26) R - G Speed sensor (SP2) signal Vehicle speed 20 km/h (12 mph) Pulse generation (see  fwaveform 6)
    NT+ (E6-35) - NT- (E6-27) L - Y Speed sensor (NT) signal Engine is idling Pulse generation (see  ewaveform 5)
    NSW/STAR (E6-8) - E1 (E7-1) L-Y - BR Park/neutral position switch signal Ignition switch ON and shift lever in P or N position Below 2 V
    ↑ ↑ ↑ Ignition switch ON and shift lever not in P or N position 10 to 14 V
    SNWI (E8-27) - E1 (E7-1) GR-L - BR 2nd START switch signal Ignition switch ON 10 to 14 V
    ↑ ↑ ↑ Ignition switch ON and 2nd STRT switch is pressed continuously Below 1 V
    1. Waveform 1

      Reference: 

      WAVEFORM REFERENCE

      Terminal SLT+ - SLT-
      Tool setting 5 V/DIV., 1 ms /DIV
      Vehicle condition Engine is idling
      Fig 2: Identifying Waveform 1
      G05844314Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Waveform 2

      Reference: 

      WAVEFORM REFERENCE

      Terminal SLU+ - SLU-
      Tool setting 5 V/DIV, 1 ms /DIV
      Vehicle condition 5th (lock-up)
      Fig 3: Identifying Waveform 2
      G05844315Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Waveform 3

      Reference: 

      WAVEFORM REFERENCE

      Terminal SL2+ - SL2-
      Tool setting 5 V/DIV, 1 ms/DIV
      Vehicle condition Engine is idling
      Fig 4: Identifying Waveform 3
      G05844316Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Waveform 4

      Reference: 

      WAVEFORM REFERENCE

      Terminal SL1+ - SL1-
      Tool setting 5 V/DIV, 1 ms /DIV
      Vehicle condition Engine is idling
      Fig 5: Identifying Waveform 4
      G05844317Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Waveform 5

      Reference: 

      WAVEFORM REFERENCE

      Terminal NT+ - NT-
      Tool setting 1 V/DIV, 2 ms /DIV
      Vehicle condition Engine is idling (P or N position)
      Fig 6: Identifying Waveform 5
      G05844318Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Waveform 6

      Reference: 

      WAVEFORM REFERENCE

      Terminal SP2+ - SP2-
      Tool setting 2 V/DIV, 20 ms /DIV
      Vehicle condition Vehicle speed 20 km/h (12 mph)
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