This adapter is a lighting and cable tester for trailers and towing vehicles. Our test device ensures the quickest and easiest way to find cable defects on trailers and towing vehicles. Defective cable colors are indicated by the device using LEDs . All 13-pin sockets and plugs can be tested.

To do this, you simply have to insert the tester into the socket or plug to be tested, press the test button and a clear diagnosis will be made via the LED display.

Thanks to the internal battery supply, no external power source is necessary . Trailers also do not have to be connected to the vehicle.

Use on towing vehicles with a control unit for trailer operation is not possible!

Testable features:

  • Turn signal left / right
  • Brake light
  • Rear/tail light left/right
  • Rear fog light
  • Dimensions

Technical details:

  • Voltage: 12V
  • Connection: 13 pin
  • Material: plastic, PVC
  • Dimensions tester: approx. 19.5cm long
  • Weight: approx. 38g
  • Color: Black

Attention: The 9V block battery that must be used for use is not included in the scope of delivery!

Scope of delivery:

  • 1x trailer testing device

Often ordered together

Total price $62.00

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