Command valve jams in pressure position, MESFI fault code description - AD07.61-P-4000-28L

		Command valve jams in pressure position
1	Fault code ( Display on generic scan tool)	P206A (P0700)
2	Fault storage	after expiry of test duration and fault
	Actuation of the indicator lamp
	Engine diagnosis (EURO3/4)	No actuation
	CHECK ENGINE (MIL) I	Following two successive driving cycles with faults
3	Checking frequency	Continuous
4	Checked signal or status	Calculated gear ratios outside of tolerance
5	Fault setting conditions
	Permissible deviation from respective gear ratio	± 0,20	1st/2nd gear
		± 0,05	3rd gear
		± 0,03	4th/5th gear
		± 0,20	Reverse gear
	Checking duration	approx. 2 seconds
6	Check prerequisites	Engine speed greater than 400 rpm Output shaft speed greater than 180 rpm (corresponds to around 20 km/h) No shift operation.
7	Check procedure	After each shift operation the shift pressure is reduced slowly. If shift elements drag as the pressure drops, the command valve jams in the pressure position. Dragging shift elements are detected by the respective gear ratio.
8		The gear ratios are calculated from the following variables: speed signal n2, speed signal n3 and output shaft speed (determined via rear wheel speed). Faults are detected by the ETC control unit and sent via the CAN data bus to the ME-SFI engine control unit. Fault storage and actuation of the CHECK ENGINE (MIL) indicator lamp is carried out by the ME-SFI control unit. Also read out ETC fault memory.