1 | Fault code | |
2 | Fault storage Activation of malfunction indicator lamp for engine diagnosis (EURO3/4) or CHECK ENGINE (MIL) | after the end of the test period and faults 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 Short circuit to +12 V Line interruption Test duration |
Voltage < 4 V Current > 4.2 A no voltage at purge control valve approx. 4 - 8 V at unloaded output of ME-SFI control module 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. |