ME-SFI EGR transducer - Fault code description - AD07.61-P-4000-51A

1	Fault code	P1400
2	Fault storage	Following the expiry of the test duration and fault
	Activation of the engine diagnosis (EURO3/4) or CHECK ENGINE (MIL) malfunction indicator lamp	Following two consecutive driving cycles with fault
3	Frequency of the test	Continuously
4	Checked signal or status	Current/voltage test at the EGR transducer
5	Fault setting conditions
	Limit values
	Short-circuit to ground Voltage	< 2.5 V
	Short-circuit to + 12 V	Current > 4.2 A
	Cable interruption	No voltage at the EGR transducer Approx. 4 - 8 V at the non-loaded output of the ME-SFI control module
	Duration of test	Approx. 1 s
6	Test prerequisites	Battery voltage between 8 - 17.1 V
7		A check is carried out for lead interruption and short-circuit (to ground or battery voltage). In blocked output stage status, short-circuit to ground and lead interruption are detected, while short-circuit to battery voltage is detected with output stage conduction. In the event of a fault, the output stage is no longer activated with immediate effect.