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  Limits
	Short circuit to ground	Voltage < 4 V
	Short circuit to +12 V	Current < 4.2 A
	Line interruption	no voltage at purge control valve
		approx. 4 - 8 V at unloaded output of ME-SFI control module
	Test duration	approx. 1 s
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.