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 servomotor for the EGR controller \nis a direct current motor. The position sensor is a hall effect sensor. The hall effect sensor determines the revolutions of the servomotor. This is used to calculate the position of the EGR controller.
| Item | Explanation |
|---|---|
| 1 | EGR controller |
| 2 | Hall effect sensor |
| 3 | Electronic component with evaluation electronics |
| Pin | Explanation |
|---|---|
| SIG1 | Activation of EGR controller, positive terminal |
| SIG2 | Activation of EGR controller, negative terminal |
| 5 V | Voltage supply for hall effect sensor |
| Terminal 31E | Ground, hall effect sensor |
| SIG3 | Hall effect 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.