AUTOMATIC TRANSAXLE SYSTEM TERMINALS OF ECU


  1. TCM

    A018IATN06

    Tech Tips

    The standard voltage between each pair of TCM terminals 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
    C3-15 (R) - C3-8 (E1) L - BR R shift 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
    C3-16 (D) - C3-8 (E1) G - BR D shift position switch signal Ignition switch ON and shift lever in D and S 11 to 14 V
    Ignition switch ON and shift lever in any position except D and S Below 1 V
    C3-12 (STP) - C3-8 (E1) GR - BR Stop light switch signal Brake pedal is depressed 7.5 to 14 V
    Brake pedal is released Below 1.5 V
    C3-11 (NSW) - C3-8 (E1) R - BR Park/neutral 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
    C3-10 (STA) - C3-8 (E1) Y - BR Starter signal Cranking (shift lever in P or N, ignition switch START) 11 to 14 V
    Ignition switch ON and shift lever in any position except P or N Below 2 V
    C3-3 (SPD) - C3-8 (E1) G - BR Speed signal from combination meter Vehicle driving Pulse generation
    C3-1 (BATT) - C3-8 (E1) W - BR Battery (for measuring battery voltage and for TCM memory) Always 9 to 14 V
    C3-13 (IGSW) - C3-8 (E1) B - BR IG signal Ignition switch ON 9 to 14 V
    C3-18 (+B) - C3-8 (E1) W - BR Power source of TCM Ignition switch ON 9 to 14 V
    C3-6 (CAN+) - C3-8 (E1) B - BR CAN communication line Ignition switch ON Pulse generation
    C3-7 (CAN-) - C3-8 (E1) W - BR CAN communication line Ignition switch ON Pulse generation

  2. ECM

    A018HHMN03

    Tech Tips

    The standard voltage between each pair of ECM terminals 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 below as a reference for the ECM terminals.

    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    A43-37 (S) - C1-49 (E1) LG - BR S shift position switch signal Ignition switch ON and shift lever in S 11 to 14 V
    Ignition switch ON and shift lever in any position except S Below 1 V
    A43-34 (SFTU) - C1-49 (E1) V - BR Up shift switch signal Ignition switch ON and shift lever in S 11 to 14 V
    Ignition switch ON and shift lever held in "+" (Up shift) Below 1 V
    A43-50 (SFTD) - C1-49 (E1) SB - BR Down shift switch signal Ignition switch ON and shift lever in S 11 to 14 V
    Ignition switch ON and shift lever held in "-" (Down shift) Below 1 V