Fault code description - ME-SFI - purge control valve - AD07.61-P-4000-19A

1	Fault code		P0443
2	Fault storage		after the end of the test period and faults
	Activation of malfunction indicator lamp for engine diagnosis (EURO3/4) or CHECK ENGINE (MIL)		after two successive driving cycles with faults
3	Frequency of the test		continuous
4	Checked signal or status		Voltage and current at purge control valve
5	Fault setting conditions		Voltage < 4 V
	Limits		Current > 4.2 A
		Short circuit to ground Short circuit to +12 V Line interruption	no voltage at purge control valve approx. 4 - 8 V at unloaded output of ME-SFI control module approx. 1 s
	Test duration
6			The activation of the purge control valve is tested for line interruption and short circuit (to ground or battery voltage). Short circuit to ground and line interruption is determined with a blocked output stage, whereas short circuit to battery voltage is determined with a conducting output stage. In the event of faults, the output stage is immediately no longer activated.