The most important thing to know about your car’s electrical system is that it’s not working properly if you’re not using it. You probably start every trip by turning on the lights, powering up the stereo, and notching up the temperature, so you can understand why so many drivers overlook the electrical system. However, if any of these features fail to turn on, or if the headlights dim when you step on the gas, then the chances are good that your car’s electrical system is on the fritz.
Read on to learn more about the best electrical system tools.
Our Editor’s Best Electrical System Tools Reviews
Bestseller No. 1
Sound Troubleshooting Automotive Relay Tester with Relay Puller - 12V Auto Relay Diagnostic Tool, Small Handheld DIY Car Relay Tester with Battery Clips, Relay Testing Kit, Electrical Systems Tool
- EASY TO USE - The tester will automatically detect the pin position, the release time of the action, and the consistency of the relay in each test phase. If the tester lights up the green LED light, the relay is normal; if the red LED light is on, the relay is abnormal. The relay puller makes it easy to remove the relays to be tested.
- FAST OPERATION - First, clip the alligator clip of the tester to the car battery, the black clip on the negative pole, and the red clip on the positive pole. When the red LED light is on, the tester is ready to start the test. Move the 4 Pin/5 Pin switch to match the number of pins on the relay. Select the appropriate socket according to the relay pins and configuration and insert the relay into the socket. Press the "Test" button, and the tester will automatically begin to operate the relay several times while checking all operations of the relay.
- VERSATILE FITMENT - Suitable for most general-purpose automotive relays on the market. When testing, it needs to be connected to the car's 11V-15V battery. The car battery must be a 12V battery, and the battery voltage must be between 11V-15V; 2. The applicable coil resistance is preferably above 20 ohms. *Not intended for use with all BMW relays*
- COMPACT DESIGN - Our automotive Relay tester is small and easy to carry around for on-the-go jobs or for easy storage. Its compact design allows easy use no matter where you are.
- SIMPLE AND EFFECTIVE - With our patented design this relay tester will give you the results you need quickly and easily. A red light means that the relay is bad, and a green light means the relay is good!
$45.63
Buy on Amazon
SaleBestseller No. 2
Automotive Wiring and Electrical Systems (Workbench Series)
- automotive-diagnostic-tools
- Candela, Tony (Author)
- English (Publication Language)
- 144 Pages - 04/02/2009 (Publication Date) - CarTech (Publisher)
$27.72
Buy on Amazon
Bestseller No. 3
JRready ST5239-HT250 Connector Inspection Tool Kit, Portable Contact Retention Dynamometer Tools & Removable Electrical System Tools for Connectors/Automotive Contact Tester Tool Set
- Package Include:HT250-1+HT250-2+HT250-3+HT250-4+HT250-5+HT250-6+67-008-1+68-008-1+67-012-1+68-012-1+67-016-1+68-016-1+67-020-1+68-020-1+67-022-1+68-022-1+67-023-1+68-023-1+67-024-1+68-024-1+67-026-1+68-026-1
- Upgraded And Professional Tool Kit：22-in-1 contact retention test tool set design，equipped with a storage case, easy to carry 6 force retention test tool and 16 force socket & pin tester tip devices
- Small & Powerful: This small electrical tool kit is easy to use,insert the contact tester tool into the terminal head of the connector. Keep the same axis horizontal and increase the force.You can see if the retention force in the connector is adequate
- The appailcation pin and socket tester tips for 8# 12# 16# 20# 22# 22M# 22D# 23# 24# 26 #contact，Various specifications of the connector inspection (Socket&Pin Tester Tip) kit can easily meet different needs，Suitable for the harness electrical connector terminal aerospace etc
- Standards indicator line and durable: Automotive contact tester has comfortable grip and standard line design, and all retention test tools are made of aluminium alloy with small size, light weight, good corrosion resistance
$249.00
Buy on Amazon
Bestseller No. 4
Klein Tools ET310 AC Circuit Breaker Finder, Electric and Voltage Tester with Integrated GFCI Outlet Tester
- ACCURATE CIRCUIT BREAKER IDENTIFICATION: Quickly locate the correct breaker with precision using our circuit breaker finder, ensuring efficient electrical troubleshooting
- TWO-PART SYSTEM: Consists of a Transmitter connected to the outlet/fixture and a Receiver to scan the panel, allowing for easy and accurate breaker identification
- CLEAR INDICATIONS: The Receiver provides visual and audible cues when the correct breaker is found, ensuring a hassle-free locating process
- WIDE COMPATIBILITY: Operates on 90-120V AC circuits, making it suitable for a variety of electrical systems and installations
- BUILT-IN GFCI TESTER: The Transmitter includes a GFCI outlet tester, enabling you to inspect wiring conditions and test GFCI devices for added safety
$49.97
Buy on Amazon
SaleBestseller No. 5
Klein Tools 80016 Circuit Breaker Finder Tool Kit with Accessories, GFCI Outlet Tester, 2-Piece Set, Includes Cat. No. ET310 and Cat. No. 69411
- SMART BUY: A complete, high-performance kit that offers convenience and value
- ACCURATE CIRCUIT IDENTIFICATION: Circuit Breaker Tool Kit helps locate the correct circuit breaker for electrical outlets or fixtures, saving time and effort
- CLEAR VISUAL AND AUDIBLE INDICATIONS: Digital Circuit Breaker Finder with GFCI Outlet Tester (Cat. No. ET310) receiver provides clear indications when the correct breaker is found
- VERSATILE OPERATION: Works on 90-120V AC circuits, suitable for various residential and commercial applications
- GFCI OUTLET TESTING: Transmitter features a built-in GFCI outlet tester to inspect wiring conditions and test GFCI devices
$59.99
Buy on Amazon
Bestseller No. 6
4 Pieces Electrical Disconnect Pliers for Cars, Automotive Electrical Plug Connector Disconnect Tool and Connector Separator and Hose Clamp Pliers
- Our automotive electrical disconnect pliers are made from high-carbon steel that is sturdy durable and not easy to rust or damage. The robust build ensures that couplers can be disconnected without causing wear to the tool itself. And the handle is made by plastic coated that is anti slip, comfortable and labor-saving.
- ELECTRICAL CONNECTOR DISCONNECT PLIERS: Our electrical connector disconnect pliers easily remove locking push tab style electrical connectors found on mass air flow sensors, fuel injectors, ignition coils and other applications. This plier has a separator grabbing jaw which is suitable for one-handed use in the tight and narrow spaces and help you more easier.
- ELECTRICAL CONNECTOR SEPARATOR TOOL - Our electrical connector separator tool is easy to use. Just engage the tool tip behind the connector clip and push or pull to disconnect. There are double-ended to fit different access angles, and can quickly disconnect electrical connectors without damage.
- PACKAGE INCLUDE: You will get 1 piece straight, 1 piece 60 degree car electrical disconnect plier, 1 piece double-ended electrical terminal connector separator removal tool and 1 piece hose clamp pliers. There are 5 combination for you to choose. Our combination help you simplify the removal of automotive wire terminal connectors terminal removal tool without causing damage, giving you a good experience.
- Our electrical disconnect pliers set are suitable for all cars, such as SUVS, trucks or Jeeps, regardless of years or models. They are easily to carry or store in your car.
$22.98
Buy on Amazon
Bestseller No. 7
Beaiguna 3PCS Electrical Disconnect Pliers, Upgrade Electrical Connector Pliers, Automotive Electrical Connector Removal Tool, Electrical Plug Connector Separator for Cars, Trucks, SUVs
- TWO ANGLES, EASY TO UNLOCK: This electrical disconnect pliers set is designed for automotive circuits! 60 degree elbow and straight dual design, easy to deal with snap-on connectors at air flow sensors, fuel injectors, ignition coils and other locations. Pull out tab with the hook tip to unlock, then clamp the tab and pull outward to separate the connector from the sensor without damage - as easy as unlocking a cell phone case
- VERSATILE DUAL-HEAD DESIGN: No matter how hard the connector is to reach, our electrical connector plier makes it easy! The curved end deftly unlocks the hidden connector behind the catch, and the straight end steadily handles the front unplugging operation. Comfortable, non-slip grips give you the same precise control over each step when repairing fuel nozzles, ignitions, sealing joints, and other delicate parts
- SMOOTH TO USE: High-carbon steel head is rust-resistant and anti-abrasion, PVC handle grip is comfortable and non-slip, it can be flexibly operated in the narrow corners of the engine compartment with one hand. Whether it's a wiring harness hidden deep inside or a crowded pile of parts, it's easy to “reach out” and say goodbye to awkward positions! Not afraid of grease stains when repairing the car, a wipe with wet wipes is as good as new, long-lasting companion for your every repair of your car
- UNIVERSAL FIT, ZERO FUSS: This set of electrical pliers is suitable for all common family cars, SUVs, and pickup trucks, and fits flawlessly from older models to the newest. Weather sealed connectors, common circuit connectors ...... more than one type of a clip to open, so you no longer worry about different interfaces
- EMERGENCY-READY KIT: 3PCS electrical connector removal tool set (straight pliers, 60-degree elbow pliers, and double-ended crowbar) is practical and does not take up space. It can usually be stored in the trunk toolbox, allowing for emergency repairs to be done at hand, so you no longer have to worry about breaking down halfway
$14.99
Buy on Amazon
Bestseller No. 8
Terminal Removal Tool Kit 18 Pcs Depinning Tool Kit for Automotive Connector Pin Removal Tool Kit Electrical System Pin Release Extractor Wire Terminal Removal Tool Set for Most Connector Terminal
- These Upgrade Depinning Tools crafted with a thickness of 0.8mm,This increased thickness provides greater rigidity, reducing the likelihood of bending or breaking and ensuring the tools remain reliable over time.The electrical pin removal tool kit includes 6 single pin extractors for meticulous tasks, 6 double pin extractors for efficient work, and 6 casing tools to handle a range of terminal extractions.
- These pin removal tool set made from premium quality materials such as stainless steel and durable plastic, these tools are designed to be robust, maintain their shape over time, and resist deformation, ensuring longevity and repeated use.
- These terminal tool removal kit set is meticulously crafted for precision work, ensuring that the extraction process is smooth and accurate. The various pin extractors are designed to fit snugly around terminals of different sizes, providing a secure grip for reliable extraction without slippage.
- These terminal extractor tool kit are user-friendly, allowing for the easy removal of terminal pins from connectors without causing damage, often with the aid of an ergonomic handle design that enhances the ease and safety of operation.
- These terminal pin removal tool kits are versatile and can be used across a variety of applications, including automotive wiring, motorcycle maintenance, household appliances, and other electronic devices, making them a common tool for most connector terminals.
$7.99
Buy on Amazon
SaleBestseller No. 9
KARRYTON 14PC 1000V Insulated Electrician Tool Set,VDE Certified Electrical Tools Kit with Pliers, Screwdrivers, Voltage Tester,w/All-in-One Bag, Ideal for Home and Industrial Electrical Repair
- High Safety Certification & Insulation Protection : KARRYTON insulated electrician tools undergo rigorous testing to withstand up to 10,000V, ensuring 1,000V operational safety. All tools comply with VDE and IEC 60900 standards, guaranteeing safety and reliability during use. The tools are made with premium insulation materials that resist high temperatures, impact, and abrasion, offering long-lasting durability and protection against electrical hazards.
- Comprehensive Tool Set : This 14-piece set includes all essential tools for electrical work, featuring water pump plier(9.5”), diagonal cutting plier(6“), wire stripper(6”), long nose plier(8”), combination plier(7”), 4 flat head screwdrivers, 3 Phillips screwdrivers, a voltage tester and one roll of electrical tape covering all the electrical needs.
- Ergonomic Design for Comfort: The tools are designed with ergonomic handles that provide a comfortable grip, reducing hand fatigue during extended use. The handles are also insulated to hold up to 1,000V, offering added protection during high-voltage tasks.
- Portable and Organized Storage: The KARRYTON tool set comes with a durable carrying bag that keeps each tool securely in place, making it easy to carry around and access, wherever the work environment is.
- Versatile for Professional and Home Use - Whether you're a professional electrician working on complex industrial installations or a homeowner handling everyday electrical repairs, the KARRYTON insulated tool set is designed to meet all your needs. From installing electrical systems to performing routine maintenance, this tool set ensures efficient, safe, and precise work, making it an ideal choice for both large-scale projects and small DIY tasks.
$55.99
Buy on Amazon
Bestseller No. 10
AWBLIN Power Circuit Probe Tester, LCD Digital Automotive Test Light with Voltage Display&Illumination, DC Voltage Tester, Electrical System Tool, Relay Fuse Continuity Current Test.
- MULTIFUNCTIONAL CIRCUIT PROBE TESTER：The power circuit probe tester has multiple functions, such as detection Circuit Polarity, Voltage, Connection, Break, Lighting, Ignition Plug, Sensor Measurement, Grounding Test, Continuity Test, Component Activation and other functions. No additional tools needed to help you reduce car diagnosis time.
- 2 WORKING MODES: The automotive test light supports 2 working modes: voltage mode and current mode(Resolution: 0.1V/0.1A), Two Clip Supply voltage: 5-36VDC, Probe test voltage: 1-60VDC, Probe test current: DC 0-8A. The electric test Pen usually default voltage mode, press the small black round button, you can easily switch to the current mode. It is powered by vehicle’s battery, no extra battery needed.
- EASY TO READ: The circuit tester combines an LCD digital backlight display with an LED red/green indicator light design, making it easier to read the voltage and current values of the screen and distinguish between positive and negative electrodes.
- ILLUMINATION FUNCTION: the test light probe built-in flashlight is bright enough to light up your work area. When the two alligator clamps respectively clamp the positive and negative ends of the battery, the flashlight immediately lights up, which is more convenient for you to test at night or in dark areas.
- OVERLOAD PROTECTION & BUZZER ALARM: In voltage mode, the Tester will display overvoltage warning when voltage exceeds 61VDC. The LCD will display “OL”, red LED light on. In current mode, If the current is too high, the LCD will display “OL”, buzzer alarm. When the current exceeds 8A, the tester will automatically disconnect to protect the circuit to reduce unnecessary losses. The disconnection time varies with the load current.
$32.99
Buy on Amazon
Best Electrical System Tools Buying Guide
Before choosing the best electrical system tools you should consider following options:
1. Voltage Tester: One of the most important tools that you can use for electrical evaluations is a voltage tester. This is a device that you can use to test the voltage of an electrical outlet.
While you can use this for new outlets in your home, you can also use it in the field when you want to check the voltage of a circuit breaker or outlet.
2. Fish Tape: A fish tape is essentially a piece of steel wire with a handle on one end and a hook on the other end. This is a very useful tool that you can use when you need to pull cables through conduit.
When you need to pull a cable through a conduit, you can attach it to the fish tape and then use it to pull the cable through.
3. Stethoscope: If you are going to do electrical evaluations, then you need to have a stethoscope on hand. This is a device that you can use to listen to various sounds that are produced when electricity is flowing.
When you listen to the sounds produced by electricity, you can get an idea of what is going wrong and what needs to be done.
4. Continuity Tester: When you are going to do electrical evaluations, you need to have a continuity tester on hand. This is a device that you can use to test whether two conductors in an electrical system are electrically connected.
You can use a continuity tester in a number of different situations. For example, you can use it to test whether two wires are electrically connected or whether a wire is broken.
You can also use this for testing whether a switch is in the on or off position. There are various types of continuity testers that you can choose from. Some of them are designed to test different voltage levels and some of them are designed to test lower voltage levels.
5. Test Lead Set: A test lead set is essentially a collection of test probes that you can use when you are carrying out electrical assessments. These are very useful tools that can help you detect problems with electricity and can help you detect when something is wrong.
What else you should know about electrical system tools
1. What are the most common electrical system tools?
The most common electrical system tools are screwdrivers, wire strippers, and pliers.
2. What are the most important electrical system tools?
The most important electrical system tools are circuit breakers, fuses, and grounding rods.
3. What are the most dangerous electrical system tools?
The most dangerous electrical system tools are those that are not properly grounded or those that are not properly insulated.
4. What are the most expensive electrical system tools?
The most expensive electrical system tools are circuit breakers, fuses, and transformers.
5. What are the most versatile electrical system tools?
The most versatile electrical system tools are those that can be used for a variety of tasks, such as testing, diagnostics, and repairs. Some of the most versatile electrical system tools include multimeters, circuit testers, and voltage testers.
Conclusion
On the market, there are numerous best electrical system tools. Hopefully, the list of the top ten best electrical system tools will save you time researching and deciding on the best one for you.