Automotive Circuit Tester

This product is a vehicle circuit/voltage tester from Yato, used to check for the presence of voltage in automotive electrical circuits and help diagnose wiring faults. It is a pen‑style test light with a sharp probe, indicator lamp, cable and clip for connection to vehicle ground.

Basic details

• Product name: Automotive Circuit Tester
• Brand: Yato
• Typical test range: 6–24 V DC automotive circuits (many Yato testers, including YT‑2865, cover this range)
• Cable length: around 90 cm (real approx. 870 mm) from tester body to clip.
• Tip: Chrome‑plated point probe for durability and good contact.
• Indicator: Internal bulb or LED that lights when voltage is present.

Use and applications

The tester is designed for:

• Quickly checking if there is voltage at fuses, connectors, switches and wires in 6–24 V vehicle systems.
• Diagnosing electrical issues such as broken wires, poor connections or blown fuses by seeing whether the test light illuminates.

Safety

• Always follow vehicle manufacturer instructions and basic electrical safety practices.

• Use only within the specified 6–12 V d.c. range and avoid contact with moving or hot engine components.

To use it, you clip the lead to a good ground and touch the probe to the point you want to test; if the circuit has power within the tester’s range, the light or LED illuminates.