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Volkswagen Golf Service & Repair Manual: Removing and installing trailer detector control unit -J345-

Volkswagen Golf Service & Repair Manual / Electrical system / Lights, lamps, switches outside / Towing bracket / Removing and installing trailer detector control unit -J345-

When renewing the control unit, select Renew function for the respective control unit in Guided fault finding or Guided functions mode → Vehicle diagnostic tester.
–  Switch off ignition and all electrical consumers.
–  If ignition key is present, disengage in position 0 (locked).
–  Remove luggage compartment side trim (left-side) → General body repairs, interior; Rep. gr.70.
–  Press retaining clips -1- together in direction of arrow -A-.
–  Remove trailer detector control unit -J345--3-.
–  Disconnect connectors -2-.
Install in the reverse order of removal, observing the following:
Following installation, a new trailer detector control unit -J345- must be encoded → Anchor.
Coding trailer detector control unit
–  Connect vehicle diagnostic tester.
–  Code trailer detector control unit → Vehicle diagnostic tester.

Removing and installing trailer detector control unit -J345-

Assembly overview - towing bracket socket
1 -  Trailer detector control unit -J345- Removing and installing → Chapter 2 -  Retaining frame Fo ...

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