Control unit variants

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Various electric fuel pumps can be operated with the fuel pump control module (EKPS). To do so, there are the following 2 control unit variants:

Direct current (DC) version
Rotary current (EC) version

With the direct current version, the electric fuel pump is driven by a direct current motor with permanent magnet. With the rotary current version, the electric fuel pump is driven by a brushless three-phase motor with permanent magnet. With the corresponding coding, it is possible to operate various fuel pumps with the relevant variant of the control unit. The two control unit versions are distinguished visually by the color of their connectors: The direct current variant has a maroon connector, the rotary current version has a white connector.

The fuel pump control module (EKPS) is continuously applied at terminal 30g_z (BN2000) or terminal 30B (BN2010) and when it is not active it requires only a very low standby current.