SPEED LIMITER SYSTEM TERMINALS OF ECM

  1. CHECK ECM

    A325174E01
    Tip:

    The standard voltage, resistance and waveform between each pair of the ECM terminals is shown in the table below. The appropriate conditions for checking each pair of the terminals is also indicated. The result of checks should be compared with the standard voltage, resistance and waveform for each pair of the terminals as displayed in the Specified Condition column. The illustration above can be used as a reference to identify the ECM terminal locations.

    Terminal No. (Symbol)

    Wiring Color

    Terminal Description

    Condition

    Specified Condition

    A34-27 (ASLM) - A34-30 (ECCS)

    G - W

    Adjustable speed limiter switch (Cruise control main switch) circuit

    Adjustable speed limiter switch (Cruise control main switch) (ON-OFF button) released

    1 MΩ or higher

    Adjustable speed limiter switch (Cruise control main switch) (ON-OFF button) pushed

    Below 2.5 Ω

    A34-60 (CCS) - A34-30 (ECCS)

    B - W

    Adjustable speed limiter switch (Cruise control main switch) circuit

    + RES switch operated

    235 to 245 Ω

    - SET switch operated

    617 to 643 Ω

    CANCEL switch operated

    1509 to 1571 Ω

    A34-28 (D) - Body ground

    P - Body ground

    No. 2 clutch pedal switch assembly signal

    Ignition switch ON, clutch pedal released

    Below 1.5 V

    Ignition switch ON, clutch pedal fully depressed

    8 to 14 V

    A34-15 (BATT) - Body ground

    SB - Body ground

    Power source circuit

    Always

    11 to 14 V

    A34-37 (IGSW) - Body ground

    B - Body ground

    IG power source circuit

    Ignition switch ON

    11 to 14 V

    Ignition switch off

    Below 1 V

    A34-4 (E1) - Body ground

    W-B - Body ground

    Ground

    Always

    Below 1 Ω