Lisle Relay Test Jumper Kit for Automotive Relays – 4-Piece Set with Molded Case & Probe-Friendly Pads

Lisle 56810 Relay Test Jumper Kit is a four-piece set that lets you quickly test common automotive relays and live circuits without cutting or splicing wires.

Whether you work on domestic or import vehicles, the Lisle 56810 provides an organized, reusable way to diagnose relay function and live-circuit continuity. The kit contains four differently sized jumpers that match the most widely used relay footprints, a blow-molded storage case, and built-in features that make clipping test leads and aligning pins straightforward. It eliminates the need for improvised jumper wires and speeds up troubleshooting in garages, shops, or roadside repairs.

Which relays and vehicles will this kit cover?

The set is designed to fit the most common four-pin and multi-pin relay sizes found on many domestic and import cars and light trucks. By matching the relay body to the correct jumper, you can insert the relay into the adapter and exercise the coil and contacts safely. Verify pin alignment—especially on the green four-pin adapter—to avoid misconnection.

• Covers popular 4-pin and common multi-pin relay sizes used across domestic and import models
• Includes four jumper shapes to match typical relay shell configurations
• Works with OEM relays removed from their sockets or directly in-circuit when safe

How does the kit make testing faster and safer?

Instead of piercing insulation or twisting multiple wires together, each jumper provides a solid connection point for the relay and test leads. Tabs and flat contact pads on the jumpers let you clamp or probe without risking loose contacts. Using the proper jumper reduces false readings and prevents accidental shorting during diagnostics.

• Flat pads accept probe tips and provide stable contact for meters
• Clamping tabs let you attach clip leads or alligator clips securely
• Reduces the need for temporary wire splices or piercing circuits

What do I need to know about using the green four-pin jumper?

The green four-pin adapter requires careful alignment of relay pins and the jumper socket to ensure correct electrical connections. If misaligned, the relay won’t engage or test properly, and you could get misleading measurements. Take a moment to orient the relay before inserting it into the adapter.

• Match relay pin layout to the jumper socket before insertion
• Orient keyed edges or notches to ensure proper contact alignment
• Use meter probes on the flat pads to observe coil voltage and contact switching

How is the kit stored and transported?

The four jumpers ship in a molded storage case that organizes each adapter and protects contacts from damage or contamination. The compact case fits in a toolbox or glove compartment so technicians can keep the kit on hand for field diagnostics. The case also helps prevent lost pieces and speeds up tool selection at the bench.

• Blow-molded case holds all four jumpers securely
• Compact footprint for easy storage in a tool chest or bag
• Durable plastic protects adapters from dirt and impact

Who is this for: The Lisle 56810 Relay Test Jumper Kit is tailored for automotive technicians, DIY mechanics, and roadside repair professionals who need a reliable, non-destructive way to test relays and live circuits. It’s useful for anyone who diagnoses electrical faults on domestic or import vehicles and prefers a faster, cleaner alternative to makeshift jumper wires. If you frequently work on vehicle electrical systems and want a small, organized set that speeds troubleshooting, this kit is a practical addition to your tool collection.