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| When faced with complaints, it is absolutely necessary to understand the function and operation of the parking aid system. |
| The parking aid system or PDC (Park Distance Control) supports the driver during parking manoeuvres by indicating the distance from the rear of the vehicle to the obstacle by way of acoustic signals. |
| The parking aid system consists of: |
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| Parking aid control unit -J446- |
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| Parking aid warning buzzer -H15- |
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| Rear left parking aid sender -G203- |
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| Rear centre left parking aid sender -G204- |
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| Rear centre right parking aid sender -G205- |
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| Rear right parking aid sender -G206- |
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| Due to different software versions of parking aid control unit -J446-, it is possible that the sender designations are not always the same. In this case allocation is as follows: |
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| Rear centre left parking aid sender -G204- is rear left parking aid sender -G203- |
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| Rear left inner parking aid sender -G334- is rear centre left parking aid sender -G204- |
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| Rear right inner parking aid sender -G335- is rear centre right parking aid sender -G205- |
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| Rear centre right parking aid sender -G205- is rear right parking aid sender -G206- |
| Fault detection and fault display: |
| The parking aid system is equipped with self-diagnosis, which makes fault finding easier. |
| For fault finding, use vehicle diagnosis, testing and information system -VAS 5051A- in „Guided fault finding“ mode. |
| To check parking aid system as a whole, perform final control diagnosis → Chapter. |
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