Purge pump system of a vehicle for purging C-H-gas of a tank system to an induction line of a combustion engine of the vehicle , comprising a purge pump and gas connection lines for connecting the purge pump with the tank system and the induction line , wherein the purge pump system further comprises a brushless DC motor and a control unit , wherein the brushless DC motor comprises a rotor and a stator, wherein the control unit is configured for providing the brushless DC motor with a commutative current to effect a relative rotation of the rotor to the stator, whereby the purge pump system further comprises a shutdown unit for receiving an enable-signal of the vehicle via an enable signal line , wherein the shutdown unit is configured to short-circuit the brushless DC motor as a response to a loss of the enable signal, and wherein • the purge pump system comprises a reset unit for receiving the enable signal, wherein the reset unit is configured to initiate a reset of the control unit as a response to a loss of the enable signal, • the reset unit comprises a first low pass connected to the enable signal line and a reset line of the control unit , wherein the first low pass is configured to block the enable signal from getting to the reset line and to let a signal from the enable signal line through to the reset line as a response to a loss of the enable signal, • the control unit comprises a B6-bridge for providing the commutative current to the brushless DC motor , wherein the B6-bridge comprises a plurality of high side MOSFETS and a plurality of low side MOSFETS , • the shutdown unit comprises a capacitor that is connected to the brushless DC motor via a diode and configured such that the capacitor is charged during operation of the brushless DC motor and cannot be discharged via the diode to the brushless DC motor , wherein the shutdown unit further comprises a second low pass for connecting the enable signal line with a gate of a PMOS of the shutdown unit , wherein the second low pass is configured to block the enable signal from getting to the gate of the PMOS and to let a signal from the enable signal line through to the gate of the PMOS as a response to a loss of the enable signal, wherein the PMOS is configured to discharge the capacitor to the gates of the low side MOSFETS , when the signal is at the gate of the PMOS . • the purge pump system comprises a reset unit for receiving the enable signal, wherein the reset unit is configured to initiate a reset of the control unit as a response to a loss of the enable signal, • the reset unit comprises a first low pass connected to the enable signal line and a reset line of the control unit , wherein the first low pass is configured to block the enable signal from getting to the reset line and to let a signal from the enable signal line through to the reset line as a response to a loss of the enable signal, • the control unit comprises a B6-bridge for providing the commutative current to the brushless DC motor , wherein the B6-bridge comprises a plurality of high side MOSFETS and a plurality of low side MOSFETS , • the shutdown unit comprises a capacitor that is connected to the brushless DC motor via a diode and configured such that the capacitor is charged during operation of the brushless DC motor and cannot be discharged via the diode to the brushless DC motor , wherein the shutdown unit further comprises a second low pass for connecting the enable signal line with a gate of a PMOS of the shutdown unit , wherein the second low pass is configured to block the enable signal from getting to the gate of the PMOS and to let a signal from the enable signal line through to the gate of the PMOS as a response to a loss of the enable signal, wherein the PMOS is configured to discharge the capacitor to the gates of the low side MOSFETS , when the signal is at the gate of the PMOS . <EOS>