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Fuel pump, auxiliary/parking heater (323a)

Fuel pump, auxiliary/parking heater (323a)

Location

Motor, fuel pump, auxiliary/parking heater (323a)

Main task

Provide fuel to the auxiliary heater when the criterion "auxiliary heater on" is fulfilled.

Type

PWM-controlled piston pump which works at varying piston stroke based on fuel need. Upon start of the heater, 2 Hz. At output need 2400 W, 3 Hz and at output need 5000 W, 5.9 Hz.

Connection

Pin No. Signal type Description
1 PWM pulse
2 Ground G31