AD07.61-P-4000-56B | Fault code description for cylinder cut-out system valve, ME-SFI | Engine 113.960 up to 5/00 with code (479) cylinder cut-out system |
1 | Fault code | Cylinder cut-out system valve on right cylinder bank (Y80) Cylinder cut-out system valve on left cylinder bank (Y81) |
2 | Fault storage Activation of malfunction indicator lamp for engine diagnosis | after the end of the test period and faults after two successive driving cycles with faults |
3 | Frequency of the test Monitoring period | continuous approx. 1 s |
4 | Checked signal or status | Voltage supply for cylinder cut-out system valve (output stage) |
5 | Fault setting conditions Limits Short circuit to ground Short circuit to + 12 V Line interruption |
Voltage < 4 V Current > 4.2 A no voltage at cylinder cut-out system valve approx. 4 - 8 V at unloaded output of ME-SFI control module |
6 | | - Ensure secure seating of plug at the cylinder cut-out system valves (Y80, Y81). - With short circuit to +12 V, the cylinder cut-out system remains locked until the diagnostic trouble code memory has been deleted. - With short circuit to ground, the engine diagnosis malfunction indicator lamp is activated immediately due to the simultaneously active fault identification for a misfire "damaging to TWC". |