MANUAL TRANSAXLE SYSTEM TERMINALS OF ECM

  1. ECM

    C275234N03
    Tip:

    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