13-Pin Trailer Plug Socket Tester | Caravan Wiring Diagnostic
13-Pin Trailer Plug Socket Tester – Fast Wiring Circuit Diagnostics for Cars, Trucks & Caravans
Take the guesswork out of trailer wiring with this compact, easy-to-use 13-Pin Trailer Plug Socket Tester. Designed for caravans, trailers, and towing vehicles, this handheld diagnostic tool instantly identifies wiring faults in your 13-pin socket or plug — saving you time and hassle on the road or at home.
Simply plug the tester into the 13-pin socket or 13-pin plug of your trailer or caravan, press the yellow button on the side, and let the LED indicators pinpoint any circuit faults. No specialist knowledge required — this tool makes trailer wiring diagnostics straightforward for both professionals and everyday drivers.
Made in Mainland China.
Key Features
- Universal 13-Pin Compatibility: Works with standard 13-pin trailer sockets and plugs used on cars, trucks, caravans, and towing vehicles.
- Instant Fault Detection: LED indicators clearly show which circuit has a fault — no multi-meter or wiring diagram needed.
- One-Button Operation: Just plug in and press the yellow button for immediate circuit testing results.
- Durable Build: High- and low-temperature resistant, acid and alkali resistant construction for long-lasting use in all conditions.
- Compact & Portable: Handheld design fits easily in your glovebox or toolkit — take it wherever you go.
- CE Certified: Meets European safety and quality standards for peace of mind.
- 12V System Compatible: Designed specifically for 12V vehicle electrical systems.
Specifications
- Voltage: 12V
- Pin Configuration: 13-Pin universal
- Power: 9V battery (not included)
- Dimensions: 22 cm (L) × 6 cm (W) × 5 cm (H)
- Weight: 222g
- Certification: CE
- Origin: Made in Mainland China
Package Contents
- 1 × 13-Pin Plug Socket Diagnostic Tester
Note: 9V battery is not included.
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Frequently Asked Questions
Q: What vehicles and trailers is this 13-pin socket tester compatible with?
A: This trailer plug socket tester is compatible with any car, truck, or caravan that uses a standard 13-pin trailer socket or plug on a 12V electrical system. It is widely used across European-standard towing vehicles and caravans.
Q: Do I need a battery to use this trailer wiring tester?
A: Yes, this tester is powered by a 9V battery, which is not included in the package. You will need to supply your own 9V battery before use. The 12V rating refers to the vehicle system voltage it is designed to test.
Q: How do I use this 13-pin diagnostic tool?
A: Using the tester is simple — plug it into the 13-pin socket or the 13-pin plug on your trailer or caravan, then press the yellow button on the side of the unit. The LED indicators will light up to show which circuits are functioning correctly and identify any wiring faults.
Q: Can this tester detect all types of trailer wiring faults?
A: This tester is designed to indicate failures in the wiring circuits of both towing vehicles and trailers or caravans. It tests all circuits within the 13-pin connector, making it a comprehensive diagnostic tool for identifying open circuits and wiring issues.