1056BW CHECK ON THE THROTTLE BODY ACTUATOR OPERATION - Fiat - NUOVA BRAVO - eLearn

198001362 - 1056BW Check on the throttle body actuator operation

STEP	CHECK TO BE PERFORMED	REMEDIAL ACTION IF THE CHECK IS NOT OK
1	Manual check on motorized throttle operation Turn the ignition key to the OFF position Using a finger, place the throttle valve in the fully open position and check that it moves evenly. Remove your finger from the throttle valve (1) and check that it returns to its preset position (with a valve opening of 7° (2) in relation to the completely closed position, moving evenly thanks to the return spring and the opening spring). Using a finger, place the throttle valve in the fully closed position and check that it moves evenly, remove your finger and check that it returns to its normal preset position Move on to Step 2	Replace the motorized throttle Op. 1056B14 THROTTLE CASE - R + R
2	Check on motorized throttle operation Turn the key to the ON position Gradually press the accelerator pedal and check that the throttle valve moves evenly until it is completely open Release the accelerator pedal and check that the throttle valve returns to its preset position	Move on to Step 3
3	Throttle actuator resistance check Turn the ignition key to the OFF position Disconnect the motorized throttle connector Using an Examiner in ohmmeter mode, measure the resistance between terminals 1 and 2 of the throttle actuator and check that the resistance is about 3 ohm ± 20 % at 20°C Move on to Step 4 See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT	Replace the motorized throttle

STEP

CHECK TO BE PERFORMED

REMEDIAL ACTION IF THE CHECK IS NOT OK

Manual check on motorized throttle operation

Turn the ignition key to the OFF position
Using a finger, place the throttle valve in the fully open position and check that it moves evenly.
Remove your finger from the throttle valve (1) and check that it returns to its preset position (with a valve opening of 7° (2) in relation to the completely closed position, moving evenly thanks to the return spring and the opening spring).
Using a finger, place the throttle valve in the fully closed position and check that it moves evenly, remove your finger and check that it returns to its normal preset position

Move on to Step 2

Replace the motorized throttle Op. 1056B14 THROTTLE CASE - R + R

Check on motorized throttle operation

Turn the key to the ON position
Gradually press the accelerator pedal and check that the throttle valve moves evenly until it is completely open
Release the accelerator pedal and check that the throttle valve returns to its preset position

Move on to Step 3

Throttle actuator resistance check

Turn the ignition key to the OFF position
Disconnect the motorized throttle connector
Using an Examiner in ohmmeter mode, measure the resistance between terminals 1 and 2 of the throttle actuator and check that the resistance is about 3 ohm ± 20 % at 20°C

Move on to Step 4 See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT

Replace the motorized throttle

Throttle valve

1 - throttle valve2 - predefined position (7° valve opening)

Throttle actuator resistance check

A - Main sensor voltageB - Secondary sensor voltageC - Throttle position main sensor output voltageD - Throttle position secondary sensor output voltageE - Throttle openingF - Position in which the throttle valve is open 7° in relation to the fully closed position (predefined position)G - Angle produced with the accelerator pedal completely depressed ( 84°)H - Angle produced with the throttle valve completely opened manually ( 96° )