Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Structure and inner electrical connection
The servo-motor employed to adjust the position of the throttle valve is a DC motor. The throttle-valve sensor is a Hall-effect device. The hall effect sensor determines the revolutions of the servomotor. This provides the basis for calculating the position of the throttle valve.
| Item | Explanation |
|---|---|
| 1 | Throttle-valve actuator with throttle valve |
| 2 | Hall effect sensor |
| 3 | Electronic component with evaluation electronics |
| Pin | Explanation |
|---|---|
| SIG1 | Positive connection for controlling activation of throttle-valve actuator |
| SIG2 | Negative connection for controlling activation of the throttle-valve actuator |
| 5 V | Voltage supply for throttle valve sensor |
| Terminal 31E | Terminal 31E, electronics earth, throttle valve sensor |
| SIG3 | Throttle-valve sensor signal |
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.