MANUAL TRANSAXLE SYSTEM TERMINALS OF ECM


  1. ECM

    A01M20JN03

    Tech Tips

    The standard voltage and resistance 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 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
    A173-1 (BATT) - B208-53 (E1) B - W-B Battery (for measuring battery voltage and for ECM memory) Always 11 to 14 V
    A173-2 (+B) - B208-53 (E1) B - W-B Power source of ECM Ignition switch ON 11 to 14 V
    A173-3 (+B2) - B208-53 (E1) B - W-B Power source of ECM Ignition switch ON 11 to 14 V
    A173-44 (SPD) - B208-53 (E1) V - W-B Vehicle speed signal from combination meter assembly signal Vehicle being driven Pulse generation
    A173-46 (MREL) - B208-53 (E1) L - W-B EFI MAIN relay Ignition switch ON 11 to 14 V
    B208-48 (+BM) - B208-53 (E1) B - W-B Power source of ECM Always 11 to 14 V
    B208-53 (E1) - Body ground W-B - Body ground Ground Always Below 1 Ω
    B208-76 (NE+) - B208-109 (NE-) R - Y Crankshaft position sensor signal Idling with warm engine Pulse generation
    B208-110 (VCNE) - B208-53 (E1) L - W-B Power source of crankshaft position sensor (specific voltage) Engine stopped, ignition switch ON 4.5 to 5.5 V