The Power Probe Combo Kit is an all-in-one electrical testing kit designed to make diagnosing wiring and circuit issues simple and reliable. For anyone restoring or maintaining a Full Size Jeep, this tool is especially useful for tasks like gauge cluster testing, wiring harness checks, and ground verification.

This kit includes a full set of leads, connectors, and adapters so you can test circuits throughout your Wagoneer, Cherokee, Grand Wagoneer, or J-Series truck without needing additional tools. With easy-to-read indicators, audible feedback, and multiple testing functions, it’s a must-have for tackling electrical work during restorations or troubleshooting.

What it can do

• Measure voltage and monitor signals
• Identify bad grounds instantly
• Detect short circuits before they cause further damage
• Test relays and components to confirm they’re working correctly
• Provide audible and visual feedback while testing

Common Symptoms That Call for This Tool

Electrical problems in Full Size Jeeps can be tricky. Here are some of the most common issues where the Power Probe PPLS01 will help you quickly track down the problem:

• Dim or non-working gauges – often caused by poor grounds or broken connections in the cluster.
• Blown fuses or short circuits – quickly identify where the short is occurring.
• Intermittent power loss – confirm if voltage is dropping in a wire or connector.
• Accessories not working (radio, lights, blower motor) – verify whether power is reaching the component.
• Bad grounds – instantly test and confirm ground quality on aging wiring harnesses.

Features

• Built-in DC voltmeter for active feedback
• LED lights for clear results
• Bad Ground indicator
• Short Circuit indicator
• Relay and Component tester
• Audible monitoring of electrical signals