Last week, we addressed measuring resistance—verifying that a wire is continuous and not broken somewhere. These wires are used to ground the shield of the RCA output cables to the head unit. There are a bunch of grounds in the fuel injection and computer wiring harnesses for this reason. Step 6 Remove the pool-pump motor's electrical cover with a nut driver. below the ground. Have someone follow you home. These are just a few of the many low-voltage conductors. Rats can't resist wiring in newer cars: Here's why. I may even want gfci outlets on them in the future. There are many ways to control and automate your lights with SmartThings. A positive and a negative. Do not crank the car. Note: Installing the DA plug and wire setup you need to have a special DA plug and not one that you buy at the local parts store. While it's true that some of the electrical devices on a car use the vehicle chassis for the ground (negative termenal of battery), many other devices require an actual conductor to the battery. One wire is for 12 volt power to the brake magnets and the other wire should be grounded either to the trailer frame or to the main trailer ground wire. Knowing the right way to wire a car audio system is essential for delivering a quality system to your customer. The power on a vehicle starts at the battery. According to experts, loose or poor ground wiring is a leading cause of stereo sound system problems and underperformance. 4-gauge and 1/0 wires are used in cars for battery and ground connections, as well as some custom stereo and electronics applications. Id have one as my main starter battery and one in my trunk. Since all of these circuits will be at +12V, they are always shown up at the top of the wiring diagram for simplicity. Your Negative Battery Cable is connected directly to ground on your cars frame. Hopefully you will never have to experience the joy of tracing a bad ground. The breaker size depends on the type of garage door opener you have and how many you have. You'd need a 3x2x3-1/2-inch device box if you were wiring with 12-gauge wire. There should be enough here to get you going in the right direction. A three-way connection must be made joining the second wire from each of the fog lights to the red wire going to the relay terminal "87. Littelfuse does have a replacement for the old MAB1 fuse holders. To sound bona fide, I might as well give you the official job description of the gen-erator. Many young girls dream of one day becoming a cheerleader. Are you using an original ignition switch? Is it from an older car? Or are you starting from scratch and have a new universal ignition. First lesson: Electricity. It is simply a wire that sends +12 volts to the remote turn on connection, on the amplifier. It is a one wire out let Alt. Second Generation Camaro Owners Group - Camaro Wiring and Electrical Information. If the jump works and your car starts, don’t shut off your engine! Drive around for at least 15 minutes to recharge your battery. How to test if a house electrical ground wire is active? How much cost to add hard wire lighting in ceiling? Prices to ground wires in a house. A house is created with alternating current. The bare or green-wrapped ground wires serve as a backup to divert the power safely away in case of an electrical fault. when i checked the stock wires in my car, i saw one from the negativity battery terminal to the chassis. Relays have many purposes and are used in a variety of ways such as electronic circuit boards, machines, appliances, automobiles and the list can go on. Anything more than that means you have a broken wire, which will read 12. On the other hand, you may experience voltage drops when you key up due to the resistance in the wire between your radio and battery. First, I have displayed for you 3 specific areas in the electrical system that work together to start your truck when you turn the ignition with a key. Two separate insulated wires, each with its own signal wire and a ground wire inside. Now connect the ground wire to chassis ground or the negative battery terminal. I have been an electrician for many years and having a properly grounded electrical system is one of the most important things that I deal with. There are several reasons why the engine does not work and one of them is an incorrect ground wire connection. A bad turn-signal switch may interrupt the brake light circuit when it should not. The diagram below represents the schematic diagram for a SPST rocker switch:. Fortunately ISO automotive relays have been standardized, so many manufacturers make the same style relay making them much less expensive to replace than a switch. An August report by the Pentagon estimates that ISIS is “resurging” in Syria and has as many as 18,000 militants there and in Iraq. A lithium car battery can power a 320-kilometre drive after just 10 minutes of charging — as long as its temperature is hiked up to 60 °C while it is replenished. The standard solid non-removable nut SAE configuration is common for many cars and trucks. Gain the capacity to replace your fuses, and the potential to insulate yourself from shocking repair bills. While most manufacturers try to keep a standard, there are those who just have to be a little different. Touch one probe to the end of the ground wire and the other probe to the appliance electrical post. Today exceptional guys can handle stress, a few few guys who think about it is tough to forget an Loan Like ex girlfriend. Without the ground wire, a car's electrical circuitry will not work. The ground cable should be kept as short as possible. All outlets have a hot wire that delivers electricity from your local power source to your home, and a neutral wire that sends electricity back to the power source. This wire gets voltage when the car is in ACC or ON or RUN position. Littelfuse does have a replacement for the old MAB1 fuse holders. 17 title race at. Instead of trying to do that, the driver's door module monitors all of the switches. That is not the case. Xbox Wire: So, here’s a fun one: what does Star Wars mean to you? Magers: Star Wars is lightsabers, droids, big sci-fi epic hero journey. Generator Testing. This video explains the what happens if a ground wire is not. The dimmer wire will read as a ground, but a weak one, until. I am simply curious about the car antenna idea, and why it would or wouldn't. Isolated down to 1-2 circuits. Many racers and enthusiasts are still in the habit of installing a fusible link, as those are what had previously been provided by the OEM’s for years. how to and why to ground your alternator Improve Your Vehicle's Electrical Charging System | Car Audio Sonic Electronix 2,078,033 views. The ground slot and the neutral slot of an outlet are identical. That’s because a 0 gauge wire can accommodate higher demand for electrical current than an 8 gauge power wire. So I guess the small black wire is the common ground, and then the small yellow wire is the voltage probe. I hope this helps you,. Upgrading to a 200-amp panel ranges from $1,300 to $3,000, including materials. For safe electrical service, make yourself a 20- or 30-foot jumper wire with an alligator clip on. The ground wire is generally bare and does not carry any current. Ground wires keep us safe around electrical currents, allowing electricity to have an everyday presence in our homes. The 3G has a 130 amp capacity, so you wire the power side with 4 gauge wire. Gently fold the wires back in the box, pressing in the new outlet. Your stock electrical system consists of 3, or more, wires hence the term "Big III". I put another alternator on my car just now and started it with a jump. of sheathing through the wire opening in the box. Price to run ground wire in a house. It is their part number 279. To begin building the harness, make sure the lengths of wire is sufficient for the run. If a thick wire has less resistence which allows more current to flow, why not always use a thick wire rather than a thin wire ? For example, if you have small circut with a 1. Best is a sort of ground harness linking everything that matters all the way back to the battery ground strap. wire that's only 20 feet above ground. There are several reasons why the engine does not work and one of them is an incorrect ground wire connection. This grid carries the electricity that runs the car. In this case one of the wires will be ground (-) and the other is positive(+). 4: Turn the ignition switch to the "Run" position. I have a lot of pictures so please be patient and let them load. The sensor keeps tabs on the operating temperature and alerts the on-car computer when there’s a potential problem. If you have a multimeter, check the voltage between the positive battery terminal and the starter, and the negative battery terminal and engine ground while someone is trying to start the car. And although its threat had dissipated in recent times, it has not disappeared. What is ACC wire- -what is 12V battery wire? The 12v permanent battery wire needs to be connected to car battery. The reason that wiring devices have grounding connections that accept only one wire is that otherwise, if two ground wires were connected to the device, then if someone later removed that wiring device and then re-applied power without wire-nutting the grounding conductors, there would be a break in the ground path for the downstream wiring but perhaps not the hot wires. Can the system be improved? Probably, and here is a quick and simple way to find out. This information focuses on providing the knowledge that you'll need in order save money and get greater satisfaction from your car audio system. Enclosed on this page is some basic technical information on the 1953 and 1954 Chevrolets. A bad ground can cause noise in an audio system, make electric fuel pumps run hot or produce low pressure, and make electronic engine controls do weird things. Test the light for only 1 second - without water to cool it, they can burst within minutes! After a quick test, the Junction box lid can be tightened. Second Generation Camaro Owners Group - Camaro Wiring and Electrical Information. If you push the gas pedal down but your gas Club Car golf cart does nothing the micro switch is usually the first place to check. The red and black wires are both hot. The Wiring Harness. I am curious about why so many of the auxiliary fuse boxes that are sold also have a ground bar included. (On newer vehicles like after 2000 models, the 4 wire oxygen sensor is superceded by a 5 wires or more wires oxygen sensor which works completely different from the standard sensor). Rocker Switch Wiring Diagram. Littelfuse does have a replacement for the old MAB1 fuse holders. On my truck, not only was the trailer wiring bad, but the wiring on my truck was out too. If your late model car, truck, or SUV does not have a trailer package from the factory, you may go with a T-connector made specifically for your make and model. The topic ‘How important is wire. Prevent voltage drop by using larger cable. Our list of best e-cigs for 2019 features several types of products, from best cigalikes and pod systems to e-cig starter kits. Power tools, vacuums, and many other appliances are much safer when they have a third prong on the cord plug, which is shaped to fit the round grounding slot on an outlet receptacle. There are many types of grounds to be considered, but the 2 main types that exist are earth ground and floating ground. Generally you will have three wires coming to your pump. But looking deeper, the color of the wires inside of the sheathing reveals that different colored wires serve different purposes. If it is above ground, heavy duty drop forged is the best choice. The coil cover has the wiring positions marked on it: Left is the tach terminal. The lights are connected to the bed, but the tongue is a movable piece which may have grounding issues at the pivot point. Lately the truck has been more and more difficult to start, and I think it is because the bracket is just a bad place for electrical conductivity. I just finished up installing a wiring for my '03 Chevy K1500 and I have a question a out the solenoid. That way you only have to make the repair once, saving you money and time. This wire should always be connected to a clean unpainted metal surface in the kick panel or firewall. If continuity does not exist between terminal 2 and ground, use the wiring diagrams in Section 6 to trace and repair any damaged wiring. One wire is for 12 volt power to the brake magnets and the other wire should be grounded either to the trailer frame or to the main trailer ground wire. Car Audio - Wire Color Codes. It's safe to have a larger ground wire than the hot and neutral, right?. In either case, you may also have to derate for ambient temperature -- if this will be in a garage that gets hot, you will need larger wire. Set your multimeter to 20 volts DC. The service panel itself must be connected to the earth so that the entire electrical system is safely grounded. Originally the term applied only to wires that were actually connected to the Earth, and in many cases this is still true. Determining Wiring Harness Quality. And although its threat had dissipated in recent times, it has not disappeared. you actually do ground your car when you fill it, the action of touching the nozzle to the filler hole grounds it. It pulls this power from the energizer wire as it is only needed during starting, so is a convenient place to have it. A 100 amp meter would need 6 gauge wires. Seizures sometimes give off a warning sign before they start. ALL old cars have ground issues galoreif jalopies, grounds arr blocked by dirt and rust, if. Without the ground wire, a car's electrical circuitry will not work. Fiberglass does not make a good ground conductor. The switch to a 4-prong outlet was due to a flaw in the 3-prong outlet design. If a ground return reading cannot be made to get below 1/2 ohm by means of the "BIG 3", then it is adviseable to ground direct to the battery. The ground strap is the foundation of the entire vehicle's electrical system. The only thing I can think is that the ground is corro. Wires: hot, neutral, ground: To understand the function that different wires in a circuit play, consider first our use of terms. 2 Above all, follow this safety rule: Never install an antenna where it can contact a public utility wire. A ground wire, sometimes also referred to as a "grounded" wire, is an electrical wire that neutralizes and protects devices, appliances, and buildings from current problems and shocks. It must be equal in size to your largest conductor. They also provide a wire for a ground connection. There are many ways to control and automate your lights with SmartThings. Wire colors in your car might be different than colors described here. Car stereos have eight wires for the traditional 4-speaker system - a positive wire and a negative wire for the front left, front right, rear left, and rear right speakers. It might seem like a complex and confusing mess, but if you approach this logically and use the sites wiring diagrams you'll be able to understand what's going on. Although wire is available in many different sizes and colors, the purpose is still the same: To transfer an electrical current from one device to another. One of my stock ground wires is becoming super frayed and looks like its about to tear off. Chevrolet Cars & Trucks. you disconnect neg. cars lined up around the block at gas stations, and stores ran out of. "The circuits in these older homes weren't designed to power the many gadgets of modern life," says electrician Allen Gallant, who has wired six This Old House TV project houses. Can the system be improved? Probably, and here is a quick and simple way to find out. When you probe a wire that supplies 12v you know you have found a constant 12v supply. Heavy #2 gauge cable should be used to connect the battery negative terminal to the engine block or starter mounting bolt. Many racers and enthusiasts are still in the habit of installing a fusible link, as those are what had previously been provided by the OEM's for years. [Archive] Page 2 Ground wires??? C6 Corvette. So a #12 wire connected to a 30-amp breaker is a problem. One of these wires from each fog light has already been connected to ground. There are two terminals on a car audio capacitor. In a 3-prong outlet, the ground and neutral wires are contained in the same prong. Electrical Grounding Methods. The more direct grounds the better. Speaker wires. 5 volt battery use to light a 1. Touch one probe to the end of the ground wire and the other probe to the appliance electrical post. Thermostatic Wiring Principles by Bob Scaringe Ph. It is connected to the grounding terminal on the receptacle. It doesn't operate like direct current in batteries or cars; you'll never have positive or negative charges. Unlike your household electrical system where you have three wires—neutral, hot, and ground—automotive electrical systems have one wire (positive) and the vehicle body/chassis (negative/ground). While leaving the car as a positive ground isn’t an issue (some believe that it can decrease rust and corrosion) converting to negative ground is a fairly simple (and. Dear Jordan. Full current available and a motor that does not run suggests a bad motor. First lesson: Electricity. Ground wire. If the wire size is too small, it will overheat and can start a fire before the breaker trips. There isn't a ground wire going to the starter. If you can't locate the ground wire visually, then the best way to locate the ground wire is with an ohmmeter. If the wiring bundle passes through an area that has a rough or sharp edge, the casing surrounding the wire may have been cut causing a short in the circuit. When the gas pedal micro switch goes bad it will not let the golf cart turn the motor over. Prevent voltage drop by using larger cable. Car Audio - Wire Color Codes. thanks #85 and #86 are the relay coil. Problems with the ground circuits to headlights can cause them to dim or not operate at all. how to and why to ground your alternator Improve Your Vehicle's Electrical Charging System | Car Audio Sonic Electronix 2,078,033 views. When attempting to wire a car stereo, the first thing to understand is what the wires and connections are for in the back of the radio. How to Diagnose Car Electrical Problems by Tracing Voltage Drops. of the two little ones you will only use one, on the same side as the power supply. Then run a single ground to the best source of ground, the negative terminal on your car's battery. The trick is that the ballast resistor is bypassed when the starter motor is engaged so the circuit consists of only the 1. Upgrading to a 200-amp panel ranges from $1,300 to $3,000, including materials. This means marker light, running light, brake light or blinker. Most all the Si series alternators should have two spade terminals, but some that have three terminals, the third is for a tachiometer connection and senses the alternator RPM. Q: How Does the Pool Light Seal up to the Pool Liner?. Neutral not required. This means that it can be grounded to any point in the vehicle and there will be no chance of creating a ground loop between the output shield ground and the head unit's ground. Two separate insulated wires, each with its own signal wire and a ground wire inside. If a thick wire has less resistence which allows more current to flow, why not always use a thick wire rather than a thin wire ? For example, if you have small circut with a 1. There are ground wires throughout the cars system SJ. I have not done any work on the car, but it had been stored in the garage over the summer. If you know how to use an ohm meter, you can measure the plug wires resistance from end to end and see if they are within specifications. CBD oil has been known to help with other conditions aside from – or even related to – pain. You hook up the two wires on the primary side, the 120V side, to a wall outlet and your output voltage is on the two wires coming from the secondary side. Before starting any garage wiring job, it is imperative that you check on your local regulations. A bad ground can cause noise in an audio system, make electric fuel pumps run hot or produce low pressure, and make electronic engine controls do weird things. below the ground. It is often called the "ground wire," or safety ground. This required a second ground wire from the block to the frame or chassis. Second, make sure that your ground wires are as short as possible. Since the 3 wire sensors are externally powered, you will need to have a power source of some kind if you are testing outside of the vehicle. How important is wire mesh in a concrete floor ? 150mm concrete on sand blinding on 150mm of hardcore on ground cleared of topsoil down to a solid base. No, it's not black magic. Florida passed the first such law in 2005. Under the dash (many wires) and the ground strap attaching the engine block to the chassis are common ones in older cars. How do you know if a throttle position sensor (TPS) is bad? Of course, some symptoms can tell you when a TPS may be bad. A possible reason for the switch to a frame/chassis to battery ground connection is the increase in electronics that require a more secure ground. 5 volts but I don't know if that's a little low. How Does the Ground in a Car's Electrical System Work? by Don Bowman Whenever an electrical system is being worked on, it is important that everything that requires power have an appropriate ground. Does each circuit in a car have its own ground cable? Can two or more circuits share a common ground cable? If a circuit has a ground problem, is the cause the ground cable for that circuit only? Or can a bad ground cable in another circuit be the cause?. Lithium batteries, which use. How to use wire rope clips. For almost all hardwire kits, there are 3 wires that need to be connected: a wire that goes to a constant fuse, a wire that goes to an ignition-switched fuse and another wire that goes to a metal ground bolt. When you turn on a light switch, power goes to the light through the “hot” (black) wire and then back through the neutral (white) wire to the ground. If you can't locate the ground wire visually, then the best way to locate the ground wire is with an ohmmeter. Remember, even if you replace the factory wiring, you will still have to get the adapter to hook the new stereo into the factory harness. Last week, we addressed measuring resistance—verifying that a wire is continuous and not broken somewhere. Each car has a large rubber bumper all around it, which prolongs the impact and diffuses the force of the collision. The 4-prong dryer cord is comprised of two hot wires, a neutral wire and a ground wire. What is the total Voltage Drop and % Voltage Drop? First, let’s look at the wire and wire size. Many older homes have 60-amp service panels not equipped to handle modern electrical loads, especially if you are considering an addition to your home or adding wiring to a garage or basement. This indicates a resistance in the ground side of the wiring, leaving only 7 volts for the filament. Wire gauge is denoted by a whole number ranging from 0000 to 40; decreasing in diameter as numbers get larger. If a ground return reading cannot be made to get below 1/2 ohm by means of the "BIG 3", then it is adviseable to ground direct to the battery. The fog lights each have two wires, one for ground and one for the 12V power. 2003 Chrysler PT Cruiser: left side brake lights. On older cars, this isn’t such a huge issue, since there are only three wires in the whole car—all of which can easily be replaced. ie you could have a main conduit with ten circuits in it go to a junction box with a conduit for each of those circuits coming out of it. Listed below is the vehicle specific wiring diagram for your car alarm, remote starter or keyless entry installation into your 1998- Chevrolet Silverado. Because older houses often have a lower capacity in their wiring systems, homeowners should make sure they don't have too many electrical gadgets plugged in, such as computers, stereos, and so forth. Now that you have an idea how rocker switches are constructed internally, let's go over the wiring diagram, so that you will now how to connect a rocker switch to a circuit. Separate insulated wires for the ground, right audio, and left audio inside a single cable. This is because the $5. Starter Frequently Asked Questions. The lights are connected to the bed, but the tongue is a movable piece which may have grounding issues at the pivot point. 2 Above all, follow this safety rule: Never install an antenna where it can contact a public utility wire. Electrical Grounding Methods. It’s important to note that wire rope clips diminish the working load limit of the wire rope to generally about 80% of its original strength. The dimmer wire will read as a ground, but a weak one, until. How Do I Know If I have A Neutral Wire for Automated Switches? All houses have a neutral wire, so the better question is, "Do I have neutrals in my switch boxes?" To answer this question, here are some guidelines: If your house was built anywhere from the mid-1980s onward, there's a strong chance you'll have neutrals throughout your home. LED Lights with 2 wires are generally going to be a single function light. Knowing the right way to wire a car audio system is essential for delivering a quality system to your customer. If you have a 3 car garage with three openers you may want to consider a 20 Amp circuit breaker. A thicker wire has less resistance and less power losses. Inadvertently driving a screw through a wiring harness is a great way to cause a short to ground or short to power or both. At first, you have to find out the best backup camera. Seizures sometimes give off a warning sign before they start. Since the ground wire or ground path may have been (improperly) used for this, we illustrate an example of a false neutral using a ground path just below, and we discuss this foul-up in detail. Wiring Speakers You can use regular speaker wire if you like, but keep in mind that copper is very vulnerable to corrosion when exposed to moisture and air. If you have two or three wires, use a 15 or higher volt scale on the meter until you know which is the sensor output wire. To check hot, ignition, lights, dimmer, use a test light or voltmeter. 5 volt battery use to light a 1. If it is above ground, heavy duty drop forged is the best choice. While it's true that some of the electrical devices on a car use the vehicle chassis for the ground (negative termenal of battery), many other devices require an actual conductor to the battery. How to test if a house electrical ground wire is active? How much cost to add hard wire lighting in ceiling? Prices to ground wires in a house. Generally you will have three wires coming to your pump. The circuit breaker prevents the wires in the wall or the outlet itself from overheating and starting a fire. 6 volts, or a shorted ground wire, which will read anywhere between 12. More than 1. How do I fix this? The alternator is attach to the engine block so it is using that as a ground. This ensures that the Nology wires have an excellent chassis ground point and will also ensure that you get the maximum performance out of your Nology wires. [Archive] Page 2 Ground wires??? C6 Corvette. It doesn't have a ground other than the earth/neutral wire. The electrical system is critical to your cars operation. The Mach-E is an indication of Ford being on the right track. Most small lawn mowers, chain saws, trimmers and other small gasoline engines do not need a battery. The jumper wire does not count as a conductor. They have a continuous rating, and are designed to operate with a single-ground fault. Then run a single ground to the best source of ground, the negative terminal on your car's battery. Now connect the ground wire to chassis ground or the negative battery terminal. If your harness isn't working, a disconnected ground wire underneath your vehicle may have caused the power to go out, or the wires may be faulty and need replacement. I have read articles and did a volt drop test. There's one restriction: It needs a conduit where the cable is exposed on the outside of the house and to 18 in. Speaker wires. Electrical System:The Starter plus "R" & "S" Terminals I am going to try and explain some key items with the starters of our earlier model trucks. Also see our series of guide starting with " How To Replace AO Smith Motor Parts - Overview " for information on where a motor part can fail and how to replace the part. Many car stereo wiring harnesses will have a screw type connector at the end of the ground wire. Given the permanent wiring situation, the only way to replace the ceiling fan motor capacitor is to cut the capacitor wires. One solution to the charging dilemma is to upgrade to a single-wire alternator that puts the power directly to the battery - and only when the engine is running. Standard RCA cables used for many AV components are also unbalanced cables. 8 Signs You May Have a Problem with Your Electrical Wiring Only you can prevent house fires — or at least greatly lower the risk by keeping an eye out for these warning signs of trouble. Using wire nuts, the pool light wires are joined to the wires from the GFCI breaker, and the ground wire is attached to the green screw. I have Toyota corolla 1996 dx 1. A motorcycle battery. Usually red wires are the right audio channel and blue wires are the left audio channel. 88 square inches. Screw in the box to fasten. This vehicle-to-trailer wiring harness creates a standard trailer wiring connection by plugging into vehicle harness and tail light assembly, and then routing the 4-way harness to the. It doesn't operate like direct current in batteries or cars; you'll never have positive or negative charges. If the alternator is putting out too much voltage (15+ volts), it is likely your battery acid will boil over out of the battery. We get a lot of nannying these days and many of us feel it’s too much. Arizona's air quality is getting worse and making people sick. Power window motors, with multiple wires leading into them, are digital and professional diagnosis is best. Ground wire should not take sharp turns of more than 90 degrees. Giant provides its own 32c Fondo wire bead tyres, and they offer a surprisingly tacky tread. I DID run all four wires but was told by the Tesla "elect service tech" and know I read it somewhere on the Tesla sight not to use the "white or common lead" for the S Model,(I wish I could find it again. Dear Jordan. See related science and technology articles, photos, slideshows and videos. When the subject of electricity comes up, you will often hear about electrical grounding, or just ground. On some systems, the wires are connected to each other at one end and are connected to a rectifier assembly on the other end. The Difference Between Neutral and Earth Ground in AC Installations 16 May 2009 If you’ve ever had the pleasure of upgrading old electrical wiring in a residence, you know that a separate earth ground wire was generally not used in the past. This in no way makes it more difficult to wire or troubleshoot; all that's required is to remember that the system is the reverse of normal systems. Here is what your ignition system looks like without that pesky Mustang wrapped around it, along with the wiring diagram. Now that you have an idea how rocker switches are constructed internally, let's go over the wiring diagram, so that you will now how to connect a rocker switch to a circuit. If you do not install a relay and use a switch, you could end up overheating the switch, melting the wires, and reducing the current that is getting to your lights, making them less bright. The four wires control the turn signals, brake lights and taillights or running lights. To understand the why, you kind of have to understand what a grounded outlet does. Household wiring for 120-V circuits is almost always 12- or 14-gauge copper wire. The dimmer wire will read as a ground, but a weak one, until. If you do not have a tilt trailer, then connect the ground wire to the tongue. Does it check the vehicle’s voltage internally or from an outside source? The PDF shown here is for a GM CS 130 and CS 144 alternator. The grounding mat (or sheet) is an amazing invention that allows you to do earthing while you’re inside a building. 12 volt source 2. This makes it easier to wire the car since you don't have to run a return wire all the way to the battery. Of course, there are also 12 volt replacement bulbs designed specifically for 6 volt sockets. These are just a few of the many low-voltage conductors. If you are new to the CNET Forums, please read our CNET.