CHARGING SYSTEM TERMINALS OF ECU

  1. CHECK GENERATOR CONTROL ECU ASSEMBLY

    E263238N02
    Tip:

    The standard normal voltage between each pair of generator control ECU assembly 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 normal voltage for that pair of terminals displayed in the Specified Condition column. The illustration above can be used as a reference to identify the generator control ECU assembly terminal locations.

    Terminal No. (Symbol)

    Wiring Color

    Terminal Description

    Condition

    Specified Condition

    A52-1 (ACC) - Body ground

    GR - Body ground

    Constant power source

    Ignition switch ACC

    11 to 14 V

    A52-2 (CA3N) - A52-3 (CA3P)

    SB - B

    CAN communication signal

    Ignition switch off

    (while CAN communication stopped)

    108 to 132 Ω

    A52-5 (AM21) - Body ground

    P - Body ground

    Constant power source

    Always

    11 to 14 V

    A52-6 (LIN1) - Body ground

    G - Body ground

    LIN communication signal

    Ignition switch off

    (while LIN communication stopped)

    10 kΩ or higher

    A52-9 (INH) - Body ground

    R - Body ground

    Wiper operation signal

    Ignition switch ON, wiper switch HI

    11 to 14 V