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Diagnostic 12/24 Pro Test Kit

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  • Designed for convenient go or no-go testing
  • Used for most common automotive relays
  • Kit includes 5 new test adapters
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Product Details

About This Product

Relay Buddy 12/24 is a quick go/no-go tester for the most common automotive relays. This new version Relay Buddy tests both 12-Volt and 24-Volt relays. If the relay fails the test, 3 different trouble codes will advise you of the possible causes for the failed relay. In kit form, #193 Relay Buddy 12/24 tests 5 different relay types.


  • Tests both 12-Volt and 24-Volt relays, 4 and 5 pin
  • Pro test kit includes 5 new test adapters for shielded and new relay types
  • Cycles relay 10 times - good is green light - bad is red light and 1 of 3 diagnostic codes
  • Tester uses 12-Volt or 24-Volt power from the vehicle battery
  • Return Policy

Product Information

Internet # 206868900

Model # ESI193

Additional Resources

Shop All Relay Buddy



FeaturesNo Additional FeaturesGeneral Part TypeVehicle Diagnostic Tool
Number of Pieces Included1Returnable90-Day
Shop Equipment Product TypeAutomotive Electrical Tester

Questions & Answers

Q:does es 192 test the relay socket as well
by|Oct 24, 2019
0 Answer
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Q:Does it do a full test of any car if the engine lights turns on
by|Mar 26, 2017
1 Answer
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A:  It is a relay tester. It tells you if a relay works or not. I don't believe this tool will be of any use to you.

by|Aug 29, 2023
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    Customer Reviews

    5 out of 5
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    • 100% recommend this product
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    Seems to work alright
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      Does exactly what it’s meant to do! ...
      Does exactly what it’s meant to do!
      • Verified Purchase
      Just what I needed
      Worked great just. What I wanted, and glad I got it
        • Recommended
        Showing 1-5 of 5 reviews