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Allows Circuit Bypass and Current Testing for 12V DC Relays
The Relay Bypass Switch Kit with Amp Loop energizes fuel pumps and any 12V relay by powering a DC motor for testing. It also makes DC motor actuation and current monitoring easy.
By attaching an Amp Clamp or Lab Scope, you can monitor the current or amperage readings. It allows a technician to judge the health of the DC electric motor to identify if a motor is drawing more current than specified, or if the current load is inconsistent during operation.
- Controls relay circuits independent of "key-on/key-off" systems
- Runs automotive, 12V DC motors with the push of a switch
- Simplifies fuel injection testing
- Use in conjunction with clamp-on Amp Probes and Lab Scopes
- Operating range: Up to 20 amp continuous, 30 amp surge (12V)
- Covers most makes and models
Steve O.
Reviewed in Canada on March 24, 2024
There are larger and more comprehensive relay circuit testing kits out there (like Lisle's 69300 Master Relay Test Jump Set or AESWave's uActivate Master Kit) but if you just need to bypass a relay and power a component at the fuse/relay box, this kit has everything you need for quick and easy circuit testing.I have used this kit many times in the shop since purchasing it to test fuel pumps, starters and other circuits where a relay is used for component control. Simply inserting this relay into the appropriate cavity in the fuse box and activating the switch can immediately give you a path to take for your troubleshooting process. Before it, I would just use a pre-wired inline fuse holder with spade terminals crimped to the ends of the wires, but this is simpler and ensures you have a good connection in the fuse box.I have encountered the odd situations where the design of the relay and/or the fuse box would not allow this to be used (the OE relay and cavity are a bit too small for it to fit) but it does not happen often and most times I can use this kit with no issues.
Chris Tinkler
Reviewed in Canada on February 1, 2024
Cheaper that paying to fix the Def system
Chris Rose
Reviewed in Canada on January 17, 2024
Worked perfect for checking starter relay
Scotty Prevatt
Reviewed in the United States on September 11, 2023
This is one tool I don’t want to be without when diagnosing a vehicle. I’ve had other relay tools but this is the one I reach for first. Great tool
Tyler Brownell
Reviewed in the United States on August 18, 2023
Easy to use, great packaging and great for the price.
William R Hutcheson
Reviewed in the United States on August 13, 2023
They work
datrats
Reviewed in the United States on March 11, 2023
A little expensive but works well. would buy again
Neilo
Reviewed in the United States on March 7, 2022
used this to prime my trucks engine after an oil pump change and coolant drain. simply replaced the starter relay with the one from this kit and turned it over multiple times while no other systems were on.
ORANGEshinobi
Reviewed in the United States on September 28, 2021
Very good quality relays, the switches seem very firm and robust.Some of them might be slightly bigger or thicker than the relay your replacing with.
Ace Ascuser
Reviewed in the United States on March 14, 2021
One of the things that I like about this product is that most of the more commonly used relays are included in the kit.I use this kit to help me diagnose electrical circuits on motor vehicles.
Lokesh Bali
Reviewed in the United States on July 31, 2020
Super simple. Exactly what I needed to find a problem which was difficult power drain issue. Very good product. Worked without any problems at all.
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