AUTOMATIC TRANSAXLE SYSTEM TERMINALS OF ECM


  1. ECM

    B006XB0N01

    Tech Tips

    The standard voltage and resistance of 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 be inspected. The standard voltage or resistance 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
    A24-1 (BATT) - A24-10 (E1) G - W-B Battery (for measuring battery voltage and for ECM memory) Always 11 to 14 V
    A24-8 (CANH) - A24-10 (E1) B - W-B CAN communication line Engine switch on (IG) Pulse generation
    A24-9 (+B) - A24-10 (E1) L - W-B Power source of ECM Engine switch on (IG) 11 to 14 V
    A24-10 (E1) - Body ground W-B - Body ground Ground Always Below 1 Ω
    A24-14 (S) - A24-10 (E1) GR - W-B 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
    A24-18 (CANL) - A24-10 (E1) W - W-B CAN communication line Engine switch on (IG) Pulse generation
    A24-19 (SFTD) - A24-10 (E1) W - W-B Down-shift switch signal Engine switch on (IG) 11 to 14 V
    Engine switch on (IG) and shift lever held in "-" (Down shift) Below 1 V
    A24-20 (SFTU) - A24-10 (E1) G - W-B Up-shift switch signal Engine switch on (IG) 11 to 14 V
    Engine switch on (IG) and shift lever held in "+" (Up shift) Below 1 V
    A24-21 (STP) - A24-10 (E1) SB - W-B Stop light switch signal Brake pedal depressed 7.5 to 14 V
    Brake pedal released Below 1 V
    A24-23 (NSW) - A24-10 (E1) BE - W-B Park/neutral position switch signal Engine switch on (IG) and shift lever in P or N Below 1 V
    Engine switch on (IG) and shift lever not in P or N 11 to 14 V
    A24-30 (STA) - A24-10 (E1) G - W-B Starter signal Cranking (shift lever in P or N, engine switch on (START)) 11 to 14 V
    Engine switch on (IG) and shift lever in P or N Below 2 V
    A24-35 (+B2) - A24-10 (E1) L - W-B Power source of ECM Engine switch on (IG) 11 to 14 V
    A24-42 (SPD) - A24-10 (E1) L - W-B Vehicle speed signal from combination meter assembly Driving at 20 km/h (12 mph) Pulse generation
    C59-2 (SL6+) - C59-1 (SL6-) B - L Solenoid (SL6) valve signal 1st or Reverse gear selected Pulse generation
    C59-4 (SL3+) - C59-3 (SL3-) G - R Solenoid (SL3) valve signal 3rd, 7th or Reverse gear selected Pulse generation
    C59-6 (SL2+) - C59-5 (SL2-) R - GR Solenoid (SL2) valve signal 5th, 6th, 7th or 8th gear selected Pulse generation
    C59-8 (SL1+) - C59-7 (SL1-) LG - L Solenoid (SL1) valve signal 1st, 2nd, 3rd, 4th or 5th gear selected Pulse generation
    C59-10 (SLT+) - C59-9 (SLT-) GR - LG Solenoid (SLT) valve signal Engine idling Pulse generation
    C59-12 (SLU+) - C59-11 (SLU-) LG - V Solenoid (SLU) valve signal Lock-up ON Pulse generation
    C59-14 (SL5+) - C59-13 (SL5-) V - P Solenoid (SL5) valve signal 2nd or 8th gear selected Pulse generation
    C59-16 (SL4+) - C59-15 (SL4-) G - B Solenoid (SL4) valve signal 4th or 6th gear selected Pulse generation
    C59-19 (SL) - A24-10 (E1) P - W-B Solenoid (SL) valve signal

    • Shift lever in P, R or N

    • Lock-up OFF (shift lever in D)

    		 11 to 14 V
    C59-23 (D) - A24-10 (E1) R - W-B 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
    C59-24 (N) - A24-10 (E1) LG - W-B N shift 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
    C59-25 (R) - A24-10 (E1) W - W-B 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
    C59-26 (P) - A24-10 (E1) B - W-B P shift 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
    C59-33 (NCB) - A24-10 (E1) B - W-B

    Power source for sensor

    (specific voltage)

    		 Engine switch on (IG) 11 to 14 V
    C59-34 (NCO) - A24-10 (E1) V - W-B Transmission Revolution Sensor (NC) signal Vehicle being driven Pulse generation
    C59-35 (NTB) - A24-10 (E1) R - W-B

    Power source for sensor

    (specific voltage)

    		 Engine switch on (IG) 11 to 14 V
    C59-36 (NTO) - A24-10 (E1) G - W-B Transmission Revolution Sensor (NT) signal Engine idling (shift lever in P or N) Pulse generation
    C59-46 (THO1) - C59-45 (ETHO) LG - L ATF temperature sensor signal ATF temperature 115°C (239°F) or higher Below 1.5 V