Volkswagen Amarok: Tailgate Wiring Harness Chafing and Short Circuit

The tailgate wiring harness passes through the tailgate hinge pivot and flexes with every open/close cycle. Insulation chafes through at the hinge wear point, causing shorts that intermittently or permanently disable rear lights, tailgate release solenoid, or rear wiper. In severe cases the short causes melting at the hinge entry point. A reinforced replacement loom is the definitive fix; tape repairs recur.

• Rear brake, reverse, or tail lights intermittently failing
• Tailgate release not responding to key fob or interior button
• Rear wiper or washer inoperative
• Recurring blown fuses on rear-end electrical circuits

1. 1

   Open and close the tailgate slowly while watching rear lights — intermittent failure during this action confirms the loom.

2. 2

   Inspect the hinge-pivot entry point on the wiring harness for chafed, bare, or discoloured insulation.

$300 to $750 at New Zealand independent workshop rates. That is for this job on its own, not for the car.

An estimate, in NZD, for the repair as normally carried out. What a specific car costs depends on which part has failed and what it damaged on the way — treat this as the floor for a negotiation, not a quote.

• “Do all rear lights, rear wiper, and tailgate release functions work reliably?”
• “Any recurring blown fuses for rear-end electrics?”

The failure described above is documented in published sources — owner forums, technical service bulletins, recall notices and workshop write-ups — held in our fault database. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them, and it is a starting point for an inspection rather than a manufacturer statement.