AUTOMATIC TRANSAXLE SYSTEM TERMINALS OF ECM


  1. ECM

    A01QRXDE07

    Tech Tips

    The standard voltage between 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 for that pair of terminals, displayed in the "Specified Condition" column. The illustration above can be used as a reference to identify the ECM terminal locations.

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

    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
    B77-3 (SL) - B77-16 (E1) BR - BR Shift solenoid valve SL signal All gears 11 to 14 V
    B77-5 (SL1+) - B77-4 (SL1-) W - B Shift solenoid valve SL1 signal 1st, 2nd, 3rd or 4th gear Pulse generation
    B77-7 (SLU+) - B77-6 (SLU-) L - LG Shift solenoid valve SLU signal

    2nd, 3rd, 4th, 5th or 6th gear

    (Flex lock-up on)

    		 Pulse generation
    B77-9 (SL4+) - B77-8 (SL4-) W - B Shift solenoid valve SL4 signal 3rd or 5th gear Pulse generation
    B77-11 (SL3+) - B77-10 (SL3-) GR - R Shift solenoid valve SL3 signal 2nd or 6th gear Pulse generation
    B77-13 (SL2+) - B77-12 (SL2-) L - LG Shift solenoid valve SL2 signal 5th or 6th gear Pulse generation
    B77-15 (SLT+) - B77-14 (SLT-) GR - R Shift solenoid valve SLT signal Engine idling Pulse generation
    B77-63 (NSW) - B77-16 (E1) W - BR Park/neutral switch signal Ignition switch ON and shift lever in P or N Below 2 V
    Ignition switch ON and shift lever not in P or N 11 to 14 V
    B77-66 (R) - B77-16 (E1) R - BR R shift 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
    B77-67 (D) - B77-16 (E1) B - BR D shift position switch signal Ignition switch ON and shift lever in D or S 11 to 14 V
    Ignition switch ON and shift lever not in D or S Below 1 V
    B77-70 (P) - B77-16 (E1) L - BR P shift 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
    B77-71 (N) - B77-16 (E1) Y - BR N shift 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
    B77-116 (NTB) - B77-16 (E1) Y - BR Power source for sensor (fixed voltage) Ignition switch ON 11 to 14 V
    B77-115 (NTO) - B77-16 (E1) L - BR Speed sensor (NT) signal Engine idling Pulse generation
    B77-118 (NCB) - B77-16 (E1) Y - BR Power source for sensor (fixed voltage) Ignition switch ON 11 to 14 V
    B77-117 (NCO) - B77-16 (E1) L - BR Speed sensor (NC) signal Vehicle driving Pulse generation
    B77-120 (THO1) - B77-119 (ETHO) W - BR ATF temperature sensor signal ATF temperature: 115°C (239°F) or higher Below 1.5 V
    A62-9 (PWMS) - B77-16 (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
    A62-27 (S) - B77-16 (E1) L - BR S shift position switch signal Ignition switch ON and shift lever in S 11 to 14 V
    Ignition switch ON and shift lever not in S Below 1 V
    A62-42 (SFTU) - B77-16 (E1) LG - BR Up shift switch signal Ignition switch ON and shift lever in S 11 to 14 V
    Ignition switch ON and shift lever in "+" (Up shift) Below 1 V
    A62-43 (SFTD) - B77-16 (E1) Y - BR Down shift switch signal Ignition switch ON and shift lever in S 11 to 14 V
    Ignition switch ON and shift lever in "-" (Down shift) Below 1 V