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Terminals Of ECM

  1. ECM 
    Fig 1: Identifying ECM Connector
    G04089027Courtesy 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 illustration above as a reference for the ECM terminals.

    *1: Shift lever with Multi-mode automatic transmission type

    *2: Except*1 (Gate shift lever type)

    TERMINAL DESCRIPTION SPECIFIED CONDITION CHART

    Symbols (Terminals No.) Wiring Color Terminal Description Condition Specified Condition
    L*2 (E6-8) - E1 (E7-1) L - BR L shift position switch signal IG switch ON and shift lever L position 10 to 14 V
    IG switch ON and shift lever other than L position Below 1 V
    2*2 (E6-9) - E1 (E7-1) W - 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 other than 2 and L position Below 1 V
    D*1 (E6-10) - E1 (E7-1) BR - BR D shift position switch signal IG switch ON and shift lever D and S position 10 to 14 V
    IG switch ON and shift lever other than D and S position Below 1 V
    D*2 (E6-10) - E1 (E7-1) BR - 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 other than D and 4 position Below 1 V
    R (E6-11) - E1 (E7-1) G - BR R shift position switch signal IG switch ON and shift lever R position 10 to 14 V
    IG switch ON and shift lever other than R position Below 1 V
    SPD (E6-17) - E1 (E7-1) LG - BR Speed signal Vehicle speed 20 km/h (12 mph) Pulse generation (See WAVEFORM 8 )
    STP (E6-19) - E1 (E7-1) B - BR Stop light switch signal Brake pedal is depressed 7.5 to 14 V
    Brake pedal is released Below 1.5 V
    3*2 (E6-20) - E1 (E7-1) SB - BR 3 shift position switch signal IG switch ON and shift lever 3 position 10 to 14 V
    IG switch ON and shift lever other than 3 position Below 1 V
    SFTD*1 (E6-21) - E1 (E7-1) Y - BR Down shift switch signal IG switch ON and shift lever S position 10 to 14 V
    IG switch ON and shift lever "-" position (Down shift) Below 1 V
    SFTU*1 (E6-22) - E1 (E7-1) W - BR Up shift switch signal IG switch ON and shift lever S position 10 to 14 V
    IG switch ON and shift lever "+" position (Up shift) Below 1 V
    4*2 (E6-23) - E1 (E7-1) BR - BR 4 shift position switch signal IG switch ON and shift lever 4 position 10 to 14 V
    IG switch ON and shift lever other than 4 position Below 1 V
    S*1 (E6-23) E1 (E7-1) SB - BR S shift position switch signal IG switch ON and shift lever S position 10 to 14 V
    IG switch ON and shift lever other than S position Below 1 V
    P (E5-6) - E1 (E7-1) L - BR Park position switch signal IG switch ON and shift lever P position 10 to 14 V
    IG switch ON and shift lever other then P position Below 1 V
    N (E5-7) - E1 (E7-1) GR - BR Neutral position switch signal IG switch ON and shift lever N position 10 to 14 V
    IG switch ON and shift lever other than N position Below 1 V
    NSW (E8-16) - E1 (E7-1) B-Y - BR Park neutral switch signal IG switch ON and shift lever P and N position Below 1 V
    IG switch ON and shift lever other than P and N position 10 to 14 V
    DSL (E9-11) - E1 (E7-1) Y-G - BR DSL solenoid signal Vehicle speed 65 km/h (40 mph), lock-up (ON to OFF) Pulse generation (See WAVEFORM 2 )
    SR (E9-9) - E1 (E7-1) L-B - BR SR solenoid signal IG switch ON Below 1 V
    3rd, 4th or 5th gear 10 to 14 V
    1st or 2nd gear Below 1 V
    S4 (E9-10) - E1 (E7-1) L-W - BR S4 solenoid signal IG switch ON Below 1 V
    5th gear 10 to 14 V
    Except 5th gear Below 1 V
    SL3+ (E9-17) - SL3- (E9-16) G-B - G-R SL3 solenoid signal Engine idle speed Pulse generation (See WAVEFORM 3 )
    SL2+ (E9-15) - SL2- (E9-14) L-Y - L-R SL2 solenoid signal Engine idle speed Pulse generation (See WAVEFORM 4 )
    SL1+ (E9-19) - SL1- (E9-18) R-B - B-W SL1 solenoid signal Engine idle speed Pulse generation (See WAVEFORM 5 )
    NC+ (E9-26) - NC- (E9-34) R - W-G Speed sensor (NC) signal Vehicle speed 30 km/h (19 mph): (3rd gear)
    Engine speed 1,400 rpm    		 Pulse generation (See WAVEFORM 6 )
    NT+ (E9-27) - NT- (E9-35) W - R-W Speed sensor (NT) signal Vehicle speed 20 km/h (12mph) Pulse generation (See WAVEFORM 7 )
    SLT+ (E9-13) - SLT- (E9-12) Y-R - Y-B SLT solenoid signal Engine idle speed Pulse generation (See WAVEFORM 1 )
    THO1 (E9-32) - E2 (E8-28) G-Y - BR ATF temperature sensor signal ATF temperature: 115°C (239°F) or more Below 1.5 V
    1. Waveform 1

      Reference: 

      WAVEFORM 1 REFERENCE CHART

      Terminal SLT+ - SLT-
      Tool setting 5 V/DIV, 1ms/DIV
      Vehicle condition Engine idle speed
      Fig 2: Identifying Voltage Waveform Pattern
      G04089028Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Waveform 2

      Reference: 

      WAVEFORM 2 REFERENCE CHART

      Terminal DSL - E1
      Tool setting 10 V/DIV, 100ms/DIV
      Vehicle condition Vehicle speed 65 km/h (40 mph), lock-up (ON to OFF)
      Fig 3: Identifying Waveform 2
      G04089029Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Waveform 3

      Reference: 

      WAVEFORM 3 REFERENCE CHART

      Terminal SL3+ - SL3-
      Tool setting 5 V/DIV, 1ms/DIV
      Vehicle condition Engine idle speed
      Fig 4: Identifying Voltage Waveform Pattern
      G04089028Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Waveform 4

      Reference: 

      WAVEFORM 4 REFERENCE CHART

      Terminal SL2+ - SL2-
      Tool setting 5 V/DIV, 1ms/DIV
      Vehicle condition Engine idle speed
      Fig 5: Identifying Voltage Waveform Pattern
      G04089028Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Waveform 5

      Reference: 

      WAVEFORM 5 REFERENCE CHART

      Terminal SL1+ - SL1-
      Tool setting 5 V/DIV, 1ms/DIV
      Vehicle condition Engine idle speed
      Fig 6: Identifying Waveform 5
      G04089032Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Waveform 6

      Reference: 

      WAVEFORM 6 REFERENCE CHART

      Terminal NC+ - NC-
      Tool setting 1 V/DIV, 1ms/DIV
      Vehicle condition Vehicle speed 30 km/h (19 mph): (3rd gear)
      Engine speed 1.400 rpm
      Fig 7: Identifying Waveform 6
      G04089033Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Waveform 7

      Reference: 

      WAVEFORM 7 REFERENCE CHART

      Terminal NT+ - NT-
      Tool setting 5 V/DIV, 0.5ms/DIV
      Vehicle condition Vehicle speed 20 km/h (12 mph)
      Fig 8: Identifying Waveform 7
      G04089034Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    8. Waveform 8

      Reference: 

      WAVEFORM 8 REFERENCE CHART

      Terminal SPD - E1
      Tool setting 5 V/DIV, 20ms/DIV
      Vehicle condition Vehicle speed 20 km/h (12 mph)
      Fig 9: Identifying Waveform 8
      G04089035Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. Instrument Panel Junction Block Assembly (Multiplex Network Body ECU) 
    Fig 10: Identifying Instrument Panel Junction Block Assembly (Multiplex Network Body ECU)
    G04089036Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMINAL DESCRIPTION SPECIFIED CONDITION CHART

    Symbols (Terminals No.) Wiring Color Terminal Description Condition Specified Condition
    SNOW (B5-17) - Body ground O - - ECT SNOW switch signal IG switch ON 10 to 14 V
    IG switch ON and Press continuously ECT SNOW switch Below 1 V
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