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 - 4 & 5 Pin 12V Auto Diagnostic Tool, Small Handheld DIY Car 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!
$39.99
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Bestseller No. 2
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!
$42.63
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SaleBestseller No. 3
How to Diagnose and Repair Automotive Electrical Systems (Motorbooks Workshop)
- Martin, Tracy (Author)
- English (Publication Language)
- 160 Pages - 11/10/2005 (Publication Date) - Motorbooks (Publisher)
SaleBestseller No. 4
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)
$28.99
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SaleBestseller No. 5
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.
$25.99
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Bestseller No. 6
Midtronics - 12V Advanced Automotive Battery Diagnostic Tool Electrical System Tester, PBT-300 - 100-1400 CCA Battery Load Tester Cranking and Charging System-Conductance Testing-Service Diagnostics
- Expanded measurement range from 100-1400 CCA
- Accurate battery test decision in seconds Shows available power in CCAs
- Bad cell detection Tests discharged batteries
- High/low voltage capture Voltmeter mode for testing both the starter and the charging system
- Bad Cell detection
$356.99
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Bestseller No. 7
Magnepull XP1000-LC Magnetic Wire Puller for Electrical Tools W/Flexible Steel Leader & Durable Case, Does not work on Foam Insulation also not rcomended for steel studs without XP1000-8 Drop Magnet
- MAGNEPULL XP1000-LC: Introducing the revolutionary Magnepull XP1000-LC, the ultimate tool for effortless cable installation and retrieval! This state-of-the-art device is an absolute game-changer, designed to streamline your cable management tasks with unprecedented precision and ease. The Magnepull XP wire puller boasts cutting-edge technology, ensuring a seamless and efficient experience.
- PATENTED RADIAL MAGNET DESIGN: This compact yet powerful wire-pulling tool utilizes a patented magnetic system, which effectively attracts and guides cables through walls, ceilings, and tight spaces. This patented radial magnet design with a self-locking clutch ensures maximum pull strength. The Magnepull xp1000 patented radial magnet design allows the magnet to penetrate the insulation without damage.
- DURABILITY: The ergonomic design ensures comfort during use, while the durable construction guarantees long-lasting performance. Crafted with precision engineering, the Magnepull wire-pulling system is a must-have for professionals and DIY enthusiasts alike. Made out of a glass-filled nylon handle guaranteed for the life of the tool. Magnepull XP1000 comes with a durable carrying case with stainless latches and integrated handles.
- VERSATILITY: Designed for versatility, the Magnepull XP1000-LC is compatible with a wide range of cable types, including Ethernet, coaxial, and HDMI cables. Whether you're setting up a home theater system, optimizing your network connections, or enhancing your security infrastructure, this tool adapts to your needs effortlessly.
- WALL FISHING TOOL: Say goodbye to frustrating cable snags and tedious installations – this cable puller tool kit’s advanced magnetic technology guarantees a smooth and swift process, saving you valuable time and effort. With its unparalleled magnetic force, you'll effortlessly navigate even the most intricate cable paths.
$135.00
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SaleBestseller No. 8
SecureElastic Electrical Disconnect Pliers 37960, 37980, Electrical Connector Separator 13120, 8in Automotive Tools Electrical Connector Pliers, Automotive Tools for Push Tab Style Plugs (3-Piece Set)
- Electrical Disconnect Pliers Set: Our electrical disconnect pliers are designed for easy removal of locking press tab connectors on sensors, ignition coils, fuel injectors and more. These automotive electrical connector pliers come in both 60-degree angle and straight tip designs to maneuver sensors in tight spaces. Features non-slip rubberized grips that are ergonomically designed for a comfortable grip.
- Made From Premium Quality Materials: These electrical disconnecting pliers are made of high quality carbon steel with hardened steel finish and polyvinyl chloride (PVC) rubber grips that are sturdy, abrasion-resistant, and rust-resistant. A high temperature forging and hardening process ensures a sharp and hard edge, while an oxidized finish enhances corrosion resistance. Designed for repeated use in harsh environments, these pliers provide long-lasting, consistent performance when working with fuel lines, sensor housings and wiring harnesses.
- Easy to Operate: Our Electrical Disconnect Pliers are equipped with dual-ended tool heads specifically designed for quick and safe disconnection of locking press tab style electrical connectors. The angled tool head can be used for stubborn snaps, while the straight head is perfect for direct pulling operations. And there's no risk of any damage to your car in the process.
- Package Content: This set includes a 3-piece automotive electrical connector pliers (1 pair of 60-degree angle pliers + 1 pair of straight nose pliers + 1 pair of double-ended connector separation tool). This tool set is designed for both professionals and automotive enthusiasts to ensure efficient removal of electrical connectors and terminal connections on all makes and models of vehicles, ensuring that you have the right tool for every job. Measuring 8 inches in length, it is compact and portable, and fits easily into a toolbox or vehicle toolkit for easy storage and emergency use.
- Professional Customer Service: Automotive electrical connector pliers are easy to operate and use, made of high-quality steel, small, and portable, they can be easily stored in your toolbox or car toolkit. These pliers are an essential emergency tool for car owners. Additionally, we have a dedicated customer support team available to assist you at any time. Should you have any questions or encounter issues while using the electrical disconnect pliers for cars, please do not hesitate to contact us promptly.
$17.99
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SaleBestseller No. 9
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.
$26.39
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Bestseller No. 10
Power Probe PP3EZCS Circuit Tester with Learning and Diagnostics Mode for Easy Automotive Electrical and Component Testing for 12 to 24 Volts Electrical Systems – Tool Only (Green)
- [EASY COMPONENT TESTING] by applying power or ground
- [TESTS CONTINUITY] of automotive electrical systems and alerts users to a drop in voltage
- [AUDIBLE AND LED ALERTS] Power, ground, and voltage drops
- [USED FOR] testing 12V to 24V DC automotive electrical systems
- [TWO-YEAR WARRANTY] and lifetime technical support
$172.07
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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.