AUTOMATIC TRANSAXLE SYSTEM TERMINALS OF ECU


  1. TCM

    A019MZTE13

    Tech Tips

    Each TCM terminal standard voltage 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 No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    D2-1 (BATT) - D2-8 (E1) W-L - BR Battery (for measuring battery voltage and for TCM memory) Always 9 to 14 V
    D2-3 (SPD) - D2-8 (E1) L - BR Speed signal from combination meter Vehicle speed 20 km/h (12 mph)

    Pulse generation

    (see waveform 1)
    D2-6 (CAN+) - D2-8 (E1) L - BR CAN communication line Engine switch on (IG)

    Pulse generation

    (see waveform 2)
    D2-7 (CAN-) - D2-8 (E1) R - BR CAN communication line Engine switch on (IG)

    Pulse generation

    (see waveform 3)
    D2-10 (STA) - D2-8 (E1) V - BR Starter signal Cranking (shift lever in P or N) 11 to 14 V
    Engine switch on (IG) and shift lever not in P or N Below 2 V
    D2-11 (NSW) - D2-8 (E1) GR - BR Park/neutral switch signal Engine switch on (IG) and shift lever in P or N Below 2 V
    Engine switch on (IG) and shift lever not in P or N 11 to 14 V
    D2-12 (STP) - D2-8 (E1) P - BR Stop light switch signal Brake pedal is depressed 7.5 to 14 V
    Brake pedal is released Below 1.5 V
    D2-13 (IGSW) - D2-8 (E1) Y - BR Ignition switch Engine switch on (IG) 9 to 14 V
    D2-15 (R) - D2-8 (E1) W - BR R shift position switch signal Engine switch on (IG) and shift lever in R 11 to 14 V
    Engine switch on (IG) and shift lever not in R Below 1 V
    D2-16 (D) - D2-8 (E1) LG - BR D shift position switch signal Engine switch on (IG) and shift lever in D or S 11 to 14 V
    Engine switch on (IG) and shift lever not in D or S Below 1 V
    D2-18 (+B) - D2-8 (E1) Y - BR Power source of TCM Engine switch on (IG) 9 to 14 V

    1. A019O30E05

      Waveform 1

      Reference
      Terminal SPD - E1
      Tool setting 2 V/DIV., 20 ms./DIV.
      Vehicle condition Vehicle speed 20 km/h (12 mph)
    2. A019OD4E06

      Waveform 2

      Reference
      Terminal CAN+ - E1
      Tool setting 1 V/DIV., 10 ms./DIV.
      Vehicle condition Engine is stopped, engine switch on (IG)
    3. A019MR1E05

      Waveform 3

      Reference
      Terminal CAN- - E1
      Tool setting 1 V/DIV., 10 ms./DIV.
      Vehicle condition Engine is stopped, engine switch on (IG)

  2. ECM

    A019N62E36

    Tech Tips

    Each ECM terminal standard voltage 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 No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    A70-14 (S) - D44-104 (E1) L - BR S shift position switch signal Engine switch on (IG) and shift lever in S 11 to 14 V
    Engine switch on (IG) and shift lever not in S Below 1 V
    A70-16 (SFTU) - D44-104 (E1) W - BR Up shift switch signal Engine switch on (IG) and shift lever in S 11 to 14 V
    Engine switch on (IG) and shift lever in "+" (Up shift) Below 1 V
    A70-51 (SFTD) - D44-104 (E1) BE - BR Down shift switch signal Engine switch on (IG) and shift lever in S 11 to 14 V
    Engine switch on (IG) and shift lever in "-" (Down shift) Below 1 V
    D44-32 (P) - D44-104 (E1) Y - BR P position switch signal Engine switch on (IG) and shift lever in P 11 to 14 V
    Engine switch on (IG) and shift lever not in P Below 1 V
    D44-34 (N) - D44-104 (E1) L-B - BR N position switch signal Engine switch on (IG) and shift lever in N 11 to 14 V
    Engine switch on (IG) and shift lever not in N Below 1 V
    D44-33 (R) - D44-104 (E1) V - BR R position switch signal Engine switch on (IG) and shift lever in R 11 to 14 V
    Engine switch on (IG) and shift lever not in R Below 1 V
    D44-30 (D) - D44-104 (E1) Y - BR D position switch signal Engine switch on (IG) and shift lever in D or S 11 to 14 V
    Engine switch on (IG) and shift lever not in D or S Below 1 V
    D44-47 (NSW) - D44-104 (E1) G - BR Park/neutral position switch signal Engine switch on (IG) and shift lever in P or N 11 to 14 V
    Engine switch on (IG) and shift lever not in P or N Below 1 V
    A70-48 (STA) - D44-104 (E1) BE - BR Starter signal Cranking 5.5 V or higher