CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM(for 1ZR-FAE) TERMINALS OF ECM


  1. ECM

    A01TBNRN02

    Tech Tips

    The standard voltage and resistance of each pair of ECM terminals is shown in the table below.

    The appropriate conditions for checking each pair of terminals are also indicated. The result of checks should be compared with the standard voltage or resistance for that pair of terminals shown in the "Specified Condition" column.

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

    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    A50-1 (BATT) - B186-59 (E1) P - BR Battery (for measuring battery voltage and for ECM memory) Always 11 to 14 V
    A50-2 (+B) - B186-59 (E1) B - BR Power source of ECM Ignition switch ON 11 to 14 V
    A50-3 (+B2) - B186-59 (E1) B - BR Power source of ECM Ignition switch ON 11 to 14 V
    A50-9 (STP) - B186-59 (E1) L - BR Stop light switch assembly signal Brake pedal depressed 7.5 to 14 V
    Brake pedal released Below 1.5 V
    A50-13 (CANH) - B186-59 (E1) B - BR CAN communication line Ignition switch ON Pulse generation
    A50-23 (NSW) - B186-59 (E1) W - BR Park/neutral position switch signal Ignition switch ON and shift lever in P or N Below 1 V
    Ignition switch ON and shift lever not in P or N 11 to 14 V
    A50-26 (CANL) - B186-59 (E1) W - BR CAN communication line Ignition switch ON Pulse generation
    A50-42 (SFTU) - B186-59 (E1) W - BR Up-shift switch signal Ignition switch ON and shift lever in M 11 to 14 V

    • Ignition switch ON and shift lever held in "+"

    • Ignition switch ON and "+" shift paddle switch operated*3

    		 Below 1 V
    A50-43 (SFTD) - B186-59 (E1) R - BR Down-shift switch signal Ignition switch ON and shift lever in M 11 to 14 V

    • Ignition switch ON and shift lever held in "-"

    • Ignition switch ON and "-" shift paddle switch operated*3

    		 Below 1 V
    A50-46 (MREL) - B186-59 (E1) L - BR EFI-MAIN relay Ignition switch ON 11 to 14 V
    A50-57 (PWMS) - B186-59 (E1)

    G - BR*1

    GR - BR*2

    		 SPORT switch (combination switch assembly) signal Ignition switch ON and SPORT switch (combination switch assembly)*1 or pattern select switch assembly*2 not being pushed 11 to 14 V
    Ignition switch ON and SPORT switch (combination switch assembly)*1 or pattern select switch assembly*2 being pushed Below 1.5 V
    A50-59 (S) - B186-59 (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
    B186-29 (+BM) - B186-59 (E1) B - BR Power source of ECM Always 11 to 14 V
    B186-39 (SLP+) - B186-38 (SLP-) LG - V Shift solenoid valve SLP signal Engine idling Pulse generation
    B186-41 (SC) - B186-59 (E1) R - BR Shift solenoid valve SC signal

    • For 1 second after moving shift lever from P to D or R, or N to D or R

    • Lock-up ON to OFF

    		 Pulse generation
    B186-43 (SLU+) - B186-42 (SLU-) P - G Shift solenoid valve SLU signal Lock-up turned from OFF to ON Pulse generation
    B186-45 (SLS+) - B186-44 (SLS-) B - L Shift solenoid valve SLS signal Engine idling Pulse generation
    B186-59 (E1) - Body ground BR - Body ground Ground Always Below 1 Ω
    B186-64 (R) - B186-59 (E1) L - BR R position switch signal Ignition switch ON and shift lever in R 11 to 14 V
    Ignition switch ON and shift lever not in R Below 1 V
    B186-65 (D) - B186-59 (E1) GR - BR D position switch signal Ignition switch ON and shift lever in D 11 to 14 V
    Ignition switch ON and shift lever not in D Below 1 V
    B186-67 (SL) - B186-59 (E1) W - BR Shift solenoid valve SL signal Lock-up operating Pulse generation
    B186-69 (N) - B186-59 (E1) B - BR N position switch signal Ignition switch ON and shift lever in N 11 to 14 V
    Ignition switch ON and shift lever not in N Below 1 V
    B186-70 (P) - B186-59 (E1) V - BR P position switch signal Ignition switch ON and shift lever in P 11 to 14 V
    Ignition switch ON and shift lever not in P Below 1 V
    B186-79 (PTO) - B186-109 (EPTO) G - V Oil pressure sensor signal Engine idling with shift lever in P 0.8 to 1.2 V
    B186-110 (VCPT) - B186-109 (EPTO) R - V Power source of oil pressure sensor Ignition switch ON 4.5 to 5.5 V
    B186-123 (NIN+) - B186-124 (NIN-) P - V Transmission revolution sensor (NIN) signal Vehicle being driven with shift lever in D Pulse generation
    B186-125 (NTO) - B186-59 (E1) GR - BR Transmission revolution sensor (NT) signal Vehicle being driven with shift lever in D Pulse generation
    B186-126 (NTB) - B186-59 (E1) P - BR Power source of transmission revolution sensor (NT) Ignition switch ON 4.75 to 5.25 V
    B186-127 (NOTO) - B186-59 (E1) G - BR Transmission revolution sensor (NOUT) signal Vehicle being driven with shift lever in D Pulse generation
    B186-128 (NOTB) - B186-59 (E1) R - BR Power source of transmission revolution sensor (NOUT) Ignition switch ON 4.75 to 5.25 V
    B186-129 (THO1) - B186-130 (ETHO) Y - GR CVT fluid temperature sensor signal CVT fluid temperature: 60 to 120°C (140 to 248°F) 0.2 to 1.0 V

    *1: for Hatchback, Wagon

    *2: for Sedan

    *3: w/ Shift Paddle Switch