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Fiat 500 Factory Service Manual (2007-2024)08 · Engine
08 · Engine

Throttle body actuator operation check

Make
Fiat
Model
500 Factory Service Manual
Year
2007–2024
Section
Petrol injection system › Throttle body actuator operation check
EngineThrottle body actuator operation check

THROTTLE BODY ACTUATOR OPERATION CHECK

Check 1056BW

1.2 8v

STEPCHECK TO BE PERFORMEDREMEDIAL ACTION IF THE CHECK IS NOT OK
1

Motorized throttle manual mode operation check

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 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, then remove your finger and check that it returns to its normal preset position

Move on to Step 2

Replace the motorized throttle

Op. 1056B14

2

Check on motorized throttle operation

Turn the key to MAR, and within 5 seconds

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 3 and 5 of the throttle actuator and check that the resistance is about 2 ohm ± 10% at 20°C

See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT

Replace the motorized throttle

Op. 1056B14

4
THROTTLE BODY ACTUATOR OPERATION CHECK

Throttle valve check

THROTTLE BODY ACTUATOR OPERATION CHECK

1. throttle valve

2. preset position (approx. 7° valve opening)

THROTTLE BODY ACTUATOR OPERATION CHECK

Motorized throttle wiring connector

1.4 16v

STEPCHECK TO BE PERFORMEDREMEDIAL ACTION IF THE CHECK IS NOT OK
1

Motorized throttle manual mode operation check

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 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, then remove your finger and check that it returns to its normal preset position

Move on to Step 2

Replace the motorized throttle

Op. 1056B14

2

Check on motorized throttle operation

Turn the key to the MAR 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 4 of the throttle actuator and check that the resistance is about 3 ohm ± 10% at 20°C

See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT

Replace the motorized throttle

Op. 1056B14

4
THROTTLE BODY ACTUATOR OPERATION CHECK

Throttle valve check

THROTTLE BODY ACTUATOR OPERATION CHECK

1. throttle valve

2. preset position (approx. 7° valve opening)

THROTTLE BODY ACTUATOR OPERATION CHECK

Motorized throttle wiring connector

Parts & tools for this job For 2007 Fiat 500

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