7-Pin Trailer Light Tester - Tow Bar Socket Circuit Diagnostic Tool for Caravans & Trailers

Description

7-Pin Trailer Light Tester - Tow Bar Socket Circuit Diagnostic Tool for Caravans & Trailers


🔌About this item

Product Description

7-Pin Trailer & Caravan Wiring Tester
This tool quickly detects wiring faults for towing vehicles, trailers and caravans.

⭐Key Features

✅ 6 LED Indicators
All lights turn on when the circuit works normally for fast and intuitive inspection.
✅ Full Pin Detection
Checks the functionality of every pin on 7-pin plugs and sockets.
✅ Durable & Portable
Made of sturdy black plastic, compact for easy storage and carrying.
✅ Easy Operation
Simply plug in and press the button to start testing.
✅ Safety Certified
Complies with ROHS standards.

📋Specifications

  • Working Voltage: 12V
  • Product Size: approx 19.5 × 5 × 3.5 cm / 7.9 × 2.4 × 1.6 inches

📖User Instructions

Test Trailer / Caravan

  1. Plug the trailer 7-pin connector into the tester.
  2. Press the yellow button.
  3. All LEDs on = normal wiring; Any LED off = faulty circuit.

Test Vehicle Socket

  1. Insert the tester into the car 7-pin socket.
  2. Hold down the yellow button during the whole test.
  3. Activate vehicle lights one by one and check corresponding LEDs:
    • Left turn signal → PIN 1 (Yellow LED) lights up
    • Right turn signal → PIN 4 (Green LED) lights up
    • Also test rear fog lamp, brake light, tail light and license plate light in the same way.
  4. No corresponding LED light means poor connection or broken circuit.

LED & Pin Definition (All LEDs Lit)

  • PIN 1 (Yellow LED): Left turn signal
  • PIN 2 (Blue LED): Rear fog lamp
  • PIN 3 (White wire): Ground
  • PIN 4 (Green LED): Right turn signal
  • PIN 5 (Brown LED): Right tail light & license plate light
  • PIN 6 (Red LED): Brake light
  • PIN 7 (Black LED): Left tail light & license plate light

Troubleshooting

  • Partial LEDs off: Corresponding wire or bulb damaged, or loose connection.
  • All LEDs off: Ground wire (PIN 3) broken, no power supply or all bulbs failed.
  • Dim or flickering individual LEDs: Damaged wire, poor contact or foreign matter in plug.
  • All LEDs dim or flickering: Faulty ground wire (PIN 3), check power supply.
  • Tester works but trailer lights fail: Trailer circuit short circuit, possible blown fuse.

📦Package Contents

1 × 7-Pin Wiring Tester (9V battery not included)

⚠️Notes
Minor dimensional errors may occur due to manual measurement.
Slight color difference may exist due to different display screens. Your understanding is appreciated.

Product form

7-Pin Trailer Light Tester - Tow Bar Socket Circuit Diagnostic Tool for Caravans & Trailers🔌About this itemProduct Description7-Pin Trailer &... Read more

SKU: AD-QC2506-78
Barcode: 2221025220787

$25.59

      Description

      7-Pin Trailer Light Tester - Tow Bar Socket Circuit Diagnostic Tool for Caravans & Trailers


      🔌About this item

      Product Description

      7-Pin Trailer & Caravan Wiring Tester
      This tool quickly detects wiring faults for towing vehicles, trailers and caravans.

      ⭐Key Features

      ✅ 6 LED Indicators
      All lights turn on when the circuit works normally for fast and intuitive inspection.
      ✅ Full Pin Detection
      Checks the functionality of every pin on 7-pin plugs and sockets.
      ✅ Durable & Portable
      Made of sturdy black plastic, compact for easy storage and carrying.
      ✅ Easy Operation
      Simply plug in and press the button to start testing.
      ✅ Safety Certified
      Complies with ROHS standards.

      📋Specifications

      • Working Voltage: 12V
      • Product Size: approx 19.5 × 5 × 3.5 cm / 7.9 × 2.4 × 1.6 inches

      📖User Instructions

      Test Trailer / Caravan

      1. Plug the trailer 7-pin connector into the tester.
      2. Press the yellow button.
      3. All LEDs on = normal wiring; Any LED off = faulty circuit.

      Test Vehicle Socket

      1. Insert the tester into the car 7-pin socket.
      2. Hold down the yellow button during the whole test.
      3. Activate vehicle lights one by one and check corresponding LEDs:
        • Left turn signal → PIN 1 (Yellow LED) lights up
        • Right turn signal → PIN 4 (Green LED) lights up
        • Also test rear fog lamp, brake light, tail light and license plate light in the same way.
      4. No corresponding LED light means poor connection or broken circuit.

      LED & Pin Definition (All LEDs Lit)

      • PIN 1 (Yellow LED): Left turn signal
      • PIN 2 (Blue LED): Rear fog lamp
      • PIN 3 (White wire): Ground
      • PIN 4 (Green LED): Right turn signal
      • PIN 5 (Brown LED): Right tail light & license plate light
      • PIN 6 (Red LED): Brake light
      • PIN 7 (Black LED): Left tail light & license plate light

      Troubleshooting

      • Partial LEDs off: Corresponding wire or bulb damaged, or loose connection.
      • All LEDs off: Ground wire (PIN 3) broken, no power supply or all bulbs failed.
      • Dim or flickering individual LEDs: Damaged wire, poor contact or foreign matter in plug.
      • All LEDs dim or flickering: Faulty ground wire (PIN 3), check power supply.
      • Tester works but trailer lights fail: Trailer circuit short circuit, possible blown fuse.

      📦Package Contents

      1 × 7-Pin Wiring Tester (9V battery not included)

      ⚠️Notes
      Minor dimensional errors may occur due to manual measurement.
      Slight color difference may exist due to different display screens. Your understanding is appreciated.

      Reviews

      7-Pin Trailer Light Tester - Tow Bar Socket Circuit Diagnostic Tool for Caravans & Trailers

      7-Pin Trailer Light Tester - Tow Bar Socket Circuit Diagnostic Tool for Caravans & Trailers

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