2.4.1.2. Dosing moduleΒΆ

Description

The Dosing Module (DM) is installed in the exhaust line between the DOC catalyst and the SCR catalyst. The DM contains an electrically operated solenoid valve, which injects the required amount of DEF through the nozzle of the DM, when being powered by the EEM4.

ECU connection

The pin numbers at the ECU:

1.23 Dosing valve (HS)
1.96 Dosing valve (LS)

Characteristics

Common information:

Nominal operation voltage = 14,8V or 28,5V
Electrical resistance = 11,4 ohm - 12,6 ohm

The DEF dosing module picture is shown in figure Dosing module.

../../_images/Dosing_module2.jpg

Dosing module