CHARGING SYSTEM TERMINALS OF ECM


  1. CHECK ECM

    A01KCX0E02

    Tech Tips

    The standard voltage and resistance 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 and resistance 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
    A62-1 (BATT) - B93-59 (E1) W - BR Battery (for measuring battery voltage and for ECM memory) Always 11 to 14 V
    B93-59 (E1) - Body ground BR - Body ground Earth (ground) circuit of ECM Always Below 1 Ω
    B93-61 (LIN) - Body ground L - Body ground LIN communication line

    Ignition switch off

    (while LIN communication is stopped)

    		 10 kΩ or higher