Throttle body actuator operation check
- Make
- Fiat
- Model
- 500 Factory Service Manual
- Year
- 2007–2024
- Section
- Petrol injection system › Throttle body actuator operation check
THROTTLE BODY ACTUATOR OPERATION CHECK
| STEP | CHECK TO BE PERFORMED | REMEDIAL 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 | Replace the motorized throttle Op. 1056B14 |
| 4 |
Throttle valve check
1. throttle valve
2. preset position (approx. 7° valve opening)
Motorized throttle wiring connector
| STEP | CHECK TO BE PERFORMED | REMEDIAL 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 | Replace the motorized throttle Op. 1056B14 |
| 4 |
Throttle valve check
1. throttle valve
2. preset position (approx. 7° valve opening)
Motorized throttle wiring connector
Parts & tools for this job For 2007 Fiat 500
- TOOLTrim removal tool kitSearch: trim removal tool kit
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- PARTPanel clip assortmentSearch: Fiat panel clips assortment
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