AUTOMATIC TRANSAXLE SYSTEM TERMINALS OF ECM


  1. ECM

    A01VTQAN14

    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
    A37-1 (BATT) - D2-53 (E1) G - BR Battery (for measuring battery voltage and for ECM memory) Always 11 to 14 V
    A37-2 (+B) - D2-53 (E1) R - BR Power source of ECM Engine switch on (IG) 11 to 14 V
    A37-3 (+B2) - D2-53 (E1) L - BR Power source of ECM Engine switch on (IG) 11 to 14 V
    A37-13 (CANH) - D2-53 (E1) Y - BR CAN communication line Engine switch on (IG) Pulse generation
    A37-17 (S) - D2-53 (E1) L - BR M shift position switch signal Engine switch on (IG) and shift lever in M 11 to 14 V
    Engine switch on (IG) and shift lever not in M Below 1 V
    A37-26 (CANL) - D2-53 (E1) P - BR CAN communication line Engine switch on (IG) Pulse generation
    A37-27 (STP) - D2-53 (E1) Y - BR Stop light switch signal Brake pedal depressed 7.5 to 14 V
    Brake pedal released Below 1 V
    A37-37 (SFTD) - D2-53 (E1) BE - BR 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
    A37-38 (SFTU) - D2-53 (E1) V - BR 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
    A37-40 (SPCN) - D2-53 (E1) P - BR Pattern select switch (NORMAL) signal Engine switch on (IG) and pattern select switch being pushed and held at NORMAL position Below 1.5 V
    Engine switch on (IG) and pattern select switch not pushed 11 to 14 V
    A37-43 (STA) - D2-53 (E1) B - BR 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
    A37-55 (PWMS) - D2-53 (E1) GR - BR Pattern select switch (SPORT) signal Engine switch on (IG) and pattern select switch being turned and held at SPORT position Below 1.5 V
    Engine switch on (IG) and pattern select switch not turned 11 to 14 V
    D2-6 (SL2+) - D2-7 (SL2-) LG - Y Shift solenoid valve SL2 signal 5th, 6th, 7th or 8th gear Pulse generation
    D2-10 (SL5+) - D2-11 (SL5-) W - Y Shift solenoid valve SL5 signal 2nd or 8th gear Pulse generation
    D2-12 (SL4+) - D2-13 (SL4-) LG - GR Shift solenoid valve SL4 signal 4th or 6th gear Pulse generation
    D2-14 (SL1+) - D2-15 (SL1-) Y - BR Shift solenoid valve SL1 signal 1st, 2nd, 3rd, 4th or 5th gear Pulse generation
    D2-31 (SL3+) - D2-1 (SL3-) GR - B Shift solenoid valve SL3 signal 3rd or 7th gear Pulse generation
    D2-53 (E1) - Body ground BR - Body ground Ground Always Below 1 Ω
    D2-62 (S1) - D2-53 (E1) G - BR Shift solenoid valve S1 signal

    • Shift lever in P or N

    • M1 range (1st gear) selected

    		 11 to 14 V
    D2-67 (SLT+) - D2-37 (SLT-) L - GR Shift solenoid valve SLT signal Engine idling Pulse generation
    D2-72 (NCO) - D2-53 (E1) Y - BR Transmission Revolution Sensor (NC) signal Vehicle being driven Pulse generation
    D2-73 (NCB) - D2-53 (E1) L - BR

    Power source for sensor

    (specific voltage)

    		 Engine switch on (IG) 11 to 14 V
    D2-74 (NTO) - D2-53 (E1) B - BR Transmission Revolution Sensor (NT) signal Engine idling (shift lever in P or N) Pulse generation
    D2-75 (NTB) - D2-53 (E1) Y - BR

    Power source for sensor

    (specific voltage)

    		 Engine switch on (IG) 11 to 14 V
    D2-76 (SLU+) - D2-61 (SLU-) L - B Shift solenoid valve SLU signal

    • D position:

      1st, 2nd, 3rd, 4th, 5th, 6th, 7th or 8th gear

      (Flex lock-up ON and Lock-up ON )

    • M position:

      3rd, 4th, 5th, 6th, 7th or 8th gear

      (Lock-up ON )

    		 Pulse generation
    D2-77 (S2) - D2-53 (E1) BE - BR Shift solenoid valve S2 signal 3rd gear 11 to 14 V
    D2-78 (NC3B) - D2-53 (E1) B - BR

    Power source for sensor

    (specific voltage)

    		 Engine switch on (IG) 11 to 14 V
    D2-86 (THO1) - D2-133 (ETHW) W - BR ATF temperature sensor signal ATF temperature 115°C (239°F) or higher Below 1.5 V
    D2-106 (NSW) - D2-53 (E1) V - BR 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
    D2-107 (R) - D2-53 (E1) GR - 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
    D2-108 (P) - D2-53 (E1) V - BR 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
    D2-110 (NC3O) - D2-53 (E1) W - BR Transmission Revolution Sensor (NC3) signal 1st, 3rd, 4th, 5th, 6th or 7th gear Pulse generation
    D2-139 (D) - D2-53 (E1) B - BR D shift position switch signal Engine switch on (IG) and shift lever in D or M 11 to 14 V
    Engine switch on (IG) and shift lever not in D or M Below 1 V
    D2-140 (N) - D2-53 (E1) BR - BR 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