AUTOMATIC TRANSAXLE SYSTEM TERMINALS OF ECU


  1. TCM

    A01QOI1E05

    Tech Tips

    The standard voltage at each TCM terminal is shown in the table below.

    In the table, first follow the information under "Condition". Look under "Terminal No. (Symbol)" for the terminals to inspect. 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
    B79-15 (R) - B79-8 (E1) R - BR R position switch signal Ignition switch ON and shift lever in R 11 to 14 V
    Ignition switch ON and shift lever in any position except R Below 1 V
    B79-16 (D) - B79-8 (E1) B - BR D position switch signal Ignition switch ON and shift lever in D or M 11 to 14 V
    Ignition switch ON and shift lever in any position except D or M Below 1 V
    B79-12 (STP) - B79-8 (E1) L - BR Stop light switch signal Brake pedal depressed 7.5 to 14 V
    Brake pedal released Below 1.5 V
    B79-11 (NSW) - B79-8 (E1) W - BR Park/neutral position switch signal Ignition switch ON and shift lever in P or N Below 2 V
    Ignition switch ON and shift lever in any position except P or N 11 to 14 V
    B79-10 (STA) - B79-8 (E1) LG - BR Starter signal Cranking (shift lever in P or N) 6 V or higher
    Ignition switch ON and shift lever in P or N Below 2 V
    B79-3 (SPD) - B79-8 (E1) V - BR Speed signal from combination meter Vehicle driving Pulse generation
    B79-1 (BATT) - B79-8 (E1) W - BR Battery (for measuring battery voltage and for TCM memory) Always 11 to 14 V
    B79-13 (IGSW) - B79-8 (E1) Y - BR Ignition switch Ignition switch ON 11 to 14 V
    B79-18 (+B) - B79-8 (E1) B - BR Power source of TCM Ignition switch ON 11 to 14 V
    B79-6 (CAN+) - B79-8 (E1) Y - BR CAN communication line Ignition switch ON Pulse generation
    B79-7 (CAN-) - B79-8 (E1) B - BR CAN communication line Ignition switch ON Pulse generation

  2. ECM

    A01QPMSE28

    Tech Tips

    The standard voltage at each ECM terminal is shown in the table below.

    In the table, first follow the information under "Condition". Look under "Terminal No. (Symbol)" for the terminals to inspect. The standard voltage between the terminals is shown under "Specified Condition".

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

    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    A61-9 (S) - B76-109 (E1) L - BR M position switch signal Ignition switch ON and shift lever in M 11 to 14 V
    Ignition switch ON and shift lever not in M Below 1 V
    B76-61 (SFTU) - B76-109 (E1) LG - BR Up-shift position switch signal Ignition switch ON and shift lever in M 11 to 14 V
    Ignition switch ON and shift lever in "+" (up-shift) Below 1 V
    A61-28 (SFTD) - B76-109 (E1) Y - BR Down-shift position switch signal Ignition switch ON and shift lever in M 11 to 14 V
    Ignition switch ON and shift lever in "-" (down-shift) Below 1 V
    A61-36 (PWMS) - B76-109 (E1) GR - BR Combination switch (SPORT) signal Ignition switch ON and combination switch (SPORT) off 11 to 14 V
    Ignition switch ON and combination switch (SPORT) on Below 1.5 V