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Terminals Of ECM

  1. ECM 
    Fig 1: Identifying Terminals Of ECM
    G05261193Courtesy 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 inspected. The standard voltage between the terminals is shown under "Specific Condition".

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

    TERMINAL DESCRIPTION SPECIFIED CONDITION TABLE

    Symbols (Terminals No.) Wiring Color Terminal Description Condition Specified Condition
    L4 (E7-13) - E1 (E7-1) G-W - BR Transfer L position switch signal IG switch ON and Transfer L position Below 1 V
    ↑ ↑ ↑ IG switch ON and Transfer except L position 10 to 14 V
    TFN (E6-25) - E1 (E7-1) G-BR Transfer N position switch signal IG switch ON and transfer shift lever N position Below 1 V
    ↑ ↑ ↑ IG switch ON and transfer shift lever except N position 10 to 14 V
    L (E8-9) - E1 (E7-1) G-R - BR L shift position switch signal IG switch ON and shift lever L position 10 to 14 V
    ↑ ↑ ↑ IG switch ON and shift lever except L position Below 1 V
    2 (E8-10) - E1 (E7-1) G-R - BR 2 shift position switch signal IG switch ON and shift lever 2 and L position 10 to 14 V
    ↑ ↑ ↑ IG switch ON and shift lever except 2 and L position Below 1 V
    R (E8-11) - E1 (E7-1) R-B - BR R shift position switch signal IG switch ON and shift lever R position 10 to 14 V
    ↑ ↑ ↑ IG switch ON and shift lever except R position Below 1 V
    D (E8-21) - E1 (E7-1) G-BR D shift position switch signal IG switch ON and shift lever D and 4 position 10 to 14 V
    ↑ ↑ ↑ IG switch ON and shift lever except D and 4 position Below 1 V
    3 (E8-19) - E1 (E7-1) G-0 - BR 3 shift position switch signal IG switch ON and shift lever 3 position 10 to 14 V
    ↑ ↑ ↑ IG switch ON and shift lever except 3 position Below 1 V
    4 (E8-20) - E1 (E7-1) P-L BR 4 shift position switch signal IG switch ON and shift lever 4 position 10 to 14 V
    ↑ ↑ ↑ IG switch ON and shift lever except 4 position Below 1 V
    STP (E9-15) - E1 (E7-1) G-Y - BR Stop light switch signal Brake pedal is depressed 7.5 to 14 V
    ↑ ↑ ↑ Brake pedal is released Below 1.5 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 idle speed 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 idle speed Pulse generation (See  cwaveform 3)
    SL1+ (E6-19) - SL1- (E6-18) Y-G - L-Y SL1 solenoid signal Engine idle speed 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 idle speed Pulse generation (See  ewaveform 5)
    STAR/NSW (E6-8) - E1 (E7-1) L-Y - BR Park neutral switch signal IG switch ON and shift lever P and N position Below 2 V
    ↑ ↑ ↑ IG switch ON and shift lever except P and N position 10 to 14 V
    SNWI (E8-27) - E1 (E7-1) GR-L - BR 2nd STRT switch signal IG switch ON 10 to 14 V
    ↑ ↑ ↑ IG switch ON and Press continuously 2nd STRT switch Below 1 V
    1. Waveform 1

      Reference: 

      WAVEFORM REFERENCE

      Terminal SLT+ - SLT-
      Tool setting 5 V/DIV., 1 ms./DIV.
      Vehicle condition Engine idle speed
      Fig 2: Identifying Waveform 1
      G04963153Courtesy 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
      G04963153Courtesy 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 idle speed
      Fig 4: Identifying Waveform 3
      G04963153Courtesy 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 idle speed
      Fig 5: Identifying Waveform 4
      G04963153Courtesy 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 idle speed (P or N position)
      Fig 6: Identifying Waveform 5
      G04963156Courtesy 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)
      Fig 7: Identifying Waveform 6
      G04963181Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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