Throttle valve actuator, ME-SFI fault code description - AD07.61-P-4000-49L

		Throttle valve actuator
1	Fault code ( Display on generic scan tool)	P2032 Throttle valve, actual value potentiometer (P0120)
2	Fault storage	After expiry of test duration and fault
	Activation of the engine diagnosis indicator lamp (EURO3/4) or CHECK ENGINE (MIL) malfunction indicator lamp	Following two successive driving cycles with faults
3	Checking frequency	Continuous
4	Checked signal or status	Signals from actual value potentiometers 1 and 2
5	Fault setting conditions
	Voltage difference between signal 1 and signal 2	If signals 1 and 2 are added the sum must be 5 V (c8 V).
	Short circuit to positive	If signal 1 is larger than 4.85 V or signal 2 larger than 4.75 V, a short-circuit to positive is present (12 V or 5 V) or the throttle valve actuator is faulty.
	Open circuit	If signal 1 is smaller than 0.275 V or signal 2 smaller than 0.175 V, an interruption is present or the throttle valve actuator is faulty..
6	Check prerequisites	The lower and upper stop must be taught in Engine speed greater than 1300 rpm
7		In the event of a fault, the system switches over to "electrical actuator emergency running mode" and driving continues with one potentiometer. By comparing the throttle valve angle with air mass, a decision is made as to which pedal value sensor position is OK. The throttle valve angle is limited.
		Both actual value potentiometers work in opposite directions.

Fig 1: Throttle Valve Actuator, ME-SFI Fault Code Description