MST-08 Universal Automotive Circuit Test Lead & Wiring Kit

Professional Automotive Wiring Diagnosis – Without Cutting a Single Wire

The MST-08 Universal Circuit Test Lead & Wiring Kit is the go-to tool for auto electricians and advanced DIY mechanics who need to diagnose complex electrical faults accurately and efficiently. This comprehensive kit lets you tap into any circuit, simulate sensor signals, and monitor live electrical data — all without damaging connectors or cutting wires.

Compatible with European, American, and Japanese vehicle terminals, making it one of the most versatile wiring kits available for mixed-fleet workshops.

Key Features

• Non-invasive circuit testing — connect directly to the back of terminals without cutting or damaging wiring
• Variable resistor (potentiometer) — simulate coolant temperature sensor and throttle position sensor signals to the ECU, avoiding unnecessary parts replacement
• 2x LED stroboscopes — monitor Hall effect sensors, photoelectric signals, fuel injectors, solenoid valves, and transmission shift gear control signals
• SRS airbag connector — safely simulate airbag and seatbelt pretensioner circuits to prevent accidental deployment during diagnosis
• Universal terminal compatibility — flat and circular terminals covering European, American, and Japanese vehicles
• Multimeter & oscilloscope compatible — extends probe reach for faster, more convenient measurements

What You Can Diagnose

• Engine management faults (ECU, sensors, injectors)
• Transmission solenoids and shift gear signals
• ABS and SRS airbag systems
• Hall effect and photoelectric sensors
• Coolant temperature and throttle position sensors
• Fuel injector pulse signals
• Electromagnetic valve operation

How to Use

1. Disconnect the electronic connector you want to test
2. Select the matching terminal adapter from the kit
3. Connect the signal cable in series between the electronic connectors
4. Attach your multimeter or oscilloscope probe to the test lead connection point
5. Read live data or simulate signals as required for diagnosis

What's in the Kit

• 5KΩ Potentiometer (Variable Resistor) × 2
• LED Stroboscope × 2
• Automotive flat terminals (assorted) × 48
• Acicular (needle) probes × 4
• Automotive circular terminals (assorted) × 24
• Standard probes × 2
• 1-to-2 connectors × 2
• 1-to-1 connectors × 4
• Alligator clips × 2
• SRS airbag connectors × 2
• Carry case

Compatible With

European, American, and Japanese vehicle terminals. Suitable for use with any automotive multimeter or oscilloscope.

This is a professional diagnostic tool intended for use by qualified auto electricians or experienced mechanics. Always follow safe electrical testing procedures when working on live vehicle circuits.