You can always find information about how to wire the ignition of different vehicles online or in a service manual. Most car owners and mechanics have issues wiring a five-pole ignition switch; the problem comes from the labeling of the OEM, and replacement switches are not clear enough to show a detailed wiring schematic. Let’s talk about the 5 pole ignition switch wiring diagram.
However, wiring a five-pole ignition switch (as well as the ignition wire to starter solenoid) will become very easy once you understand the code and figure out where to put the wires. Just open your vehicle’s hood, identify the wires, strip a part of the wire, sometimes ¼ inch, find the poles at the back of the ignition switch, and insert the ignition switch in the dash.
You will find a detailed explanation of each step you need to follow to wire a five-pole ignition switch below. Keep reading.
- How To Wire An Ignition Switch?
- Universal Ignition Switch
- GM (General Motors) Ignition Switch
- Frequently Asked Questions (FAQs)
- Final Conclusion
5 Pole Ignition Switch Wiring
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People find it difficult to wire a 5 pole ignition switch because the labeling of the OEM and replacement switches is unclear. However, once you figure out the code’s information and understand where each should go, you will find it very easy to wire a 5 pole ignition switch. Continue reading to know the steps you should follow;
5 Pole Ignition Switch Wiring Diagram: Step 1
Park the vehicle and start by opening your hood, check the negative terminal of the battery, and detach the terminal locking nuts holding it to the negative post on the battery. Detach the negative cable from the post and take a 15-minute pause for the stored current in the vehicle’s electrical system to go down before you continue.
5 Pole Ignition Switch Wiring Diagram: Step 2
Locate all five wires you will connect to the ignition switch, and match each of the five wires to the fuse box or wiper switch, headlights, radio, etc. First, connect the starter wire to the inline fuse before connecting it to the engine compartment. The battery wire will find a connection with the fusebox. In some cases, the accessory wire will do the same.
5 Pole Ignition Switch Wiring Diagram: Step 3
Strip down ¼ of the insulation of each of the five wires, then match a terminal connector to their ends with pliers. Opt for a ring-style terminal if the poles you find at the back of the switch are posts; opt for a female spade terminal if you find a male spade at the back.
5 Pole Ignition Switch Wiring Diagram: Step 4
Check the poles at the back of the switch to understand the labels. Most 5 pole ignition switches usually have standard labeling; however, the location of each pole depends on the brand you have.
Wherever you find “IGN” or “87a” indicates where the wire to the ignition module or control should be. “BATT” or “30” symbolizes the battery wire, you will find “87” or “ST” at the center pole, and it indicates the starter wire.
Some poles indicate accessories you can use without starting the ignition or car engine. These poles are labeled “ACC,” “SU,” “X,” “85,” and “86,”. Once you are done, get a permanent marker and mark every point at the back of the switch so that you won’t have issues figuring them out next time.
5 Pole Ignition Switch Wiring Diagram: Step 5
Check a service manual or the installation instructions that came with the switch so that you can correctly insert the ignition switch in the dash or steering column.
5 Pole Ignition Switch Wiring Diagram: Step 6
Connecting the wires to the post at the back of the switch becomes easy when you start with the one at the top. Attach the headline wire to the post ” X” or “85” in joining the accessories wires. You might have a switch that doesn’t clearly show the differences between the pole ” ACC” and pole “X” in situations like this; just make sure the headline wire is the only one attached to the pole. Then you can connect other accessory wires.
5 Pole Ignition Switch Wiring Diagram: Step 7
Connect the negative battery cable to the negative post on the battery again and ensure that the lock nut is held down on the terminal.
Ignition Switch
Most car users believe that the ignition switch is where they insert their keys and start the car. However, that’s the ignition cylinder. The ignition switch consists of the ignition cylinder where you insert your key to interface with the ignition switch; they function together.
It is an electrical component that decodes anti-theft in a key before turning on the electrical system and starting a vehicle. Once the electrical component is activated, the automatic transmission shifts out of the park.
The function of an ignition switch on a push-button start vehicle is to decode the anti-theft signal sent by the key fob, and then activate the car engine. Suppose you insert your key inside the ignition lock, and nothing happens. In that case, the dashboard light doesn’t come ON as you turn the key to the ON position, indicating that your ignition is faulty and needs a repair or replacement urgently.
Nothing happening when you insert your key in the ignition switch could also mean something wrong with the wiring from the controller to the starter and the remaining electrical components. It could also indicate issues with the starter motor or your battery is dead.
Ignition Switch Wiring Color Code
The wiring color code could differ quite a lot, but generally;
- You should use the red color for the accessory connection
- The yellow color goes for the battery connection
- The green color is for the starter connection
- The blue color goes to the ignition system
4 Wire Ignition Switch Diagram
The 4 wire ignition switch is the most suitable for your boat ignition switch because it is durable. The ignition contains off, on, run, and start positions. The 4 wire ignition is easy to install, and you will get two keys as you purchased one 4 ignition switch.
5 Prong Ignition Switch Wiring Diagram
5 prong ignition switches are common with riding lawnmowers. You will find some letters on the ignition switch that contain some information; you have the “S” terminal for the solenoid, L terminals for light, M for magneto, B for battery, G for ground, and R for regulatory.
A stands for accessories, and you need to ensure that magneto is in an open circuit when the engine is running and must be well grounded when the key is in the “OFF” position.
6 Prong Ignition Switch Wiring Diagram
Your 6-prong ignition switch should have the OFF, RUN, and START positions. When your ignition switch is in the OFF position, the engine is shut down, and the magneto has been shut down. The RUN position connects the accessories to the batteries. When the ignition is in the ON position, a connection has been established between the solenoid and the battery, and then the starter motor connects to the solenoid to switch ON the engine.
To wire your 6-prong ignition, you need a power source and the battery to run the accessories and start the engine. In most cases, a 12V battery should do the work. You will also need a solenoid which is a device that connects the battery and starter motor.
The starter motor is also an essential component of a 6-prong ignition; its primary function is to turn the engine’s flywheel. It ensures enough air and fuel to cause a spark so the engine can start up.
The magneto helps to shut down the engine at the appropriate time while the ground ensures the proper functioning of the other components. There is some vital equipment you need to put in place to wire your 6-prong ignition switch; they include; grip pliers, electric tape, wires, a screwdriver, extra clips, a solder iron, and an open-ended spanner. Below are the steps you need to follow;
6 Prong Ignition Switch Wiring Diagram: Step 1
Get a circuit diagram that will give you a basic knowledge of how the connection should look. You can find the circuit diagram in the user instruction manual or search for it online. The circuit diagram must show how the switch connects to all equipment. It must guide you to locate each position and establish the electrical connection of each component and accessory.
6 Prong Ignition Switch Wiring Diagram: Step 2
Find every component and accessory that you have to connect. The components include the battery and solenoid, which you will find by tracing the positive terminal wire, lights, and magneto.
6 Prong Ignition Switch Wiring Diagram: Step 3
Find the terminal labeled “G” and connect it to the ground by attaching the wire to the battery’s negative terminal or the solenoid’s ground terminal. You can use the multimeter to confirm that you made the connection correctly.
6 Prong Ignition Switch Wiring Diagram: Step 4
Look for the position of the positive solenoid; most of the time, the lower terminal has the plus sign. Get a wire with clips on both sides and connect the “S” terminal to the positive terminal of the solenoid.
6 Prong Ignition Switch Wiring Diagram: Step 5
Connect the magneto to the switch. The magneto terminal is labeled “M,” with only one open terminal.
6 Prong Ignition Switch Wiring Diagram: Step 6
Connect the battery to the terminal labeled “B” so that you can create voltage.
6 Prong Ignition Switch Wiring Diagram: Step 7
Connect the accessories. Each accessory has a single terminal labeled “L” or “Y.” However, the labeling depends on the type of 6 promo ignition you have.
6 Prong Ignition Switch Wiring Diagram: Step 8
Use the nuts to tighten the connections and use a rubber or plastic to cover it.
6 Prong Ignition Switch Wiring Diagram: Step 9
Now that you are done with all the connections check if it’s functioning well by starting up the engine.
Universal Ignition Switch
A universal ignition switch is common on off-road vehicles, generators, boats, and factory equipment. The main advantage of a universal ignition switch is that it’s durable and easy to install; however, they are not reliable when it comes to security. The universal ignition switch comes with threaded studs to which the eyelet connector is attached; small nuts tighten the eyelets.
A high-quality universal ignition switch should last for a long time, although it’s most likely that people won’t use it anymore as newer technology takes over.
Universal Ignition Switch Wiring Diagram
The primary function of the universal igniting switch is to turn on the circuit that keeps the car engine running. Once your ignition switch is faulty, getting your car to start will be very difficult. Below are the steps you need to follow to wire a universal ignition switch;
Step 1
Pack your vehicle on level ground and turn off the engine.
Step 2
There’s some labeling depending on your car brand. BATT means battery; ST means IGNITION, and ACC means ACCESSORIES. To avoid any mix-ups, check your repair manual or get help from a professional.
Step 3
Ensure that the steering wheel is free of any trims, you can use plastic clips to remove every trim, and you need to remove every bolt and screw. Please keep all of them in a safe place in case you need them again.
Step 4
Some vehicles have their ignition switch close to the dashboard, while some have it along the steering wheel. Of yours is along the steering wheel; you will have to remove the steering wheel to make the wiring process easy and faster. Get a steer wheel puller to remove the steering wheel.
Step 5
Remove the ignition module cover by unlocking the hooks; this gives you easy access to the ignition switch. Get a screwdriver to compress the release mechanism on the hooks.
Step 6
Insert the key inside your ignition and put it in the “accessory” mode; putting it in this mode will take it off the ignition mode. If you have misplaced your key, you can use a flathead screwdriver to put the key in the “accessory” position, although you need to be very careful.
Step 7
Remove the pin that keeps the ignition switch in place, and pull it from its normal position. Pulling it out should not be an issue if you have done everything right. If you are finding it difficult to pull it out, make sure you press the release pin.
Step 8
Check the switch carefully to figure out what the issue is. You may need a test light to run a better check.
Step 9
Locate the positive power lead, the battery, and the ignition switch. Most of the time, the positive power lead is a thick red wire with currents. Attach the terminal end on the power lead wire and get a terminal multi-tool to organize and secure everything. Then attach the power lead to the terminal labeled “BATT” at the back of the switch.
Step 10
Locate the accessory lead wire and attach it to the “ACC” terminal at the back of the switch. Once you are done with this connection, put the key in the “ACC” position, and every accessory will begin to function.
Step 11
Locate the starter relay wire and attach it to the “ST” terminal at the back of the switch. Once you are done, put the key in the “START” position, and the ST terminal will begin to function.
Step 12
Connect the ignition wire to the “IGN” terminal at the back of the switch.
Step 13
Now that you have gotten the wiring right, you must reinstall the ignition switch. Press the release pin with force, making it easy to put the ignition switch on the steering column.
Step 14
Test the ignition switch and reassemble everything else.
3 Wire Ignition Switch Diagram
A 3 wire ignition switch comes with three positions: the off/run/start position. It is very easy to wire because the terminals are not much, and the labeling is always very clear depending on the brand you have. To wire this kind of ignition switch, attach wires to the labeled terminals, and you are good to go.
Also, you can wire a 3 wire ignition to anything, including cars, mowers, motorcycles, etc.
GM Ignition Switch Wiring Diagram
To wire a GM ignition switch, connect the original GM ignition switch battery to the ground, then locate the master cell input wires and the starter wires of the ignition to their terminals at the back of the switch.
Insert the key into the ignition and put it in the IGN position; the switch will establish a connection in the master cell input wire so the ignition will be grounded through the terminal wire.
7 Prong Ignition Switch Wiring Diagram
The seven-prong ignition switch is also common with lawnmowers. It’s easy to install, and the wiring is similar to that of 5, and 6-prong ignition switches. If you are having issues with the wiring, check the user manual or hire a professional.
Lawn Mower Ignition Switch Wiring: Essential Steps and Facts
- The ignition switch is a crucial component of a lawn mower that controls different functions at the right time. If it’s broken, it needs to be replaced, which can be costly or require an alternative replacement.
- To wire a lawn mower ignition switch, a circuit diagram is needed to locate and connect all necessary components, such as the battery, solenoid, lights, and magneto coil.
- The ignition switch has different positions, including “off,” “run,” and “start,” which connect different circuits and establish a connection between the battery and the starting motor when turned to the start position.
- Diagnosing a faulty ignition switch can be done with a digital multimeter by checking the continuity of each terminal in different key positions.
- To wire the ignition switch, the terminal with the “G” mark needs to be connected to the ground, and the “S” terminal needs to be connected to the positive terminal of the solenoid.
- The magneto coil is wired to the “M” terminal of the ignition switch, and the positive battery is connected to the “B” terminal.
- The wires from the lights are attached to the terminal indicating “L” or “Y,” depending on the ignition switch type.
- Precautionary measures such as using safety equipment, grounding heavy voltage equipment properly, using fuses and not overriding safety switches, and checking the continuity of wires before installation are necessary.
- Bypassing a broken ignition switch is possible, but it’s better to seek professional help. Jumpstarting a mower with a bad ignition switch is only possible if the switch is functional in the start position.
- If the mower still won’t start even with a new ignition switch, it could be due to wrong connections, loose wires of accessories or fuel solenoid making contact with the lawn mower’s body, or corroded terminals of main components like the battery, ground, solenoid, or starter motor.
5 Pole Ignition Switch Wiring Diagram: Frequently Asked Questions (FAQs)
Here are some popular FAQs:
What Wires Go To Ignition Switch
Accessory (ACC) wire is mostly purple or violet and connects all the accessories, such as radio, light, etc., to the ignition and powers them when necessary. Starter (ST) wires are mostly yellow with red striping, connecting to the starter solenoid of the ignition. Ignition (IGN) wires are mostly yellow or red; they connect the ignition to other components such as accessories and other electronics. The battery wires connect the car’s battery to the ignition. You may also need an extra wire for the magneto.
How To Wire A Universal Ignition Switch Diagram
To wire a universal ignition switch, you must first get familiar with every wire and terminal at the back of the switch; terminals such as BATT, ST, IGN, and ACC are essential. Then you need to disconnect the negative terminal to avoid injuries during the wiring process. Remove every trim around the lock cylinder, insert the key, and then put it in ACC position. Remove the ignition switch from the steering column using your car key or flathead screwdriver, recheck every wire, and attach them to the right terminals. Put the ignition back in its position and reconnect the negative terminals of the battery. Insert your key and test what you have wired.
What Is The Ignition Switch
The ignition switch contains several components, including the ignition lock cylinder and the primary purpose of the whole system is to start the car and power some areas, such as the electronic accessories, the engine, and the ignition. It provides initial access to vehicular power, and you need to take care of every part of it to ensure your car is in good condition.
How To Wire A Starter Switch Diagram
Most starter switches have three terminals and three connections. The B (BATTERY) terminal connects the starter to the positive battery cable while the S (START) terminal gets the signal and current from the ignition switch, and the M (Motor) terminal has the cable that leads to the starter motor.
What Does The Ignition Switch Do
The ignition switch controls every operational aspect of the vehicle; it activates electrical accessories, powers the fuel ignition systems, and powers the car engine. It is just like an assembly that includes the ignition lock cylinder; the primary function is to start and power every car area.
How To Test Ignition Switch With Multimeter
If you want to test your vehicle’s ignition switch with a multimeter, disconnect the cable, insert your key into the cylinder, and put it in the ON position. Make sure the multimeter is in 20 volts DC; ensure that you ground the black wire as you continue the test. The ignition receives power if you get a voltage reading; if you don’t, it means there is no power transfer.
How Does A Ignition Switch Work
Once you insert the key into the ignition cylinder, put it in the start position, and it will activate the voltage from the battery to the ignition coil to create a spark. The spark in the engine or the coils goes to the plugs to trigger the fuel, and the car will start working.
How To Test A 7-Prong Ignition Switch
Locate the fuse panel under the steering and open it, then check whether the metal strip is in good shape. If the metal strip is damaged, replace it with a new and better one, and make sure it has the same amperage. Ensure the battery’s positive and negative terminals are attached to the digital multimeter. Confirm if the read lead of the voltmeter is attached to the battery’s positive pole if the battery is at least 12.6 volts; if it’s less than that, the battery is dead. Insert the key into the ignition, and if the engine does not start and there is no clicking sound, it means your 7 prong ignition is not working.
What Do The Letters On An Ignition Switch Mean
M stands for MAGNETO, S stands for STARTER SOLENOID, L stands for LIGHT, and A for ACCESSORIES.
What Does ACC Mean On A Car Ignition
The ACC on an ignition stands for Accessory. Its primary function is to enable the operation of electrical accessories. Once the engine starts working, you can use any electrical accessories such as a radio, light, etc.
How To Wire Ignition Switch To Starter
Connect the starter wire to the ST terminal at the back of the ignition switch, and that’s it.
How to Start a Car With Bad Ignition Switch
If you suspect your car has a bad ignition switch, but you need to start it, here’s a workaround. First, ensure your car is in a safe location. Put the car in neutral. Next, locate the starter solenoid, which is usually near the battery. Locate the two large terminals on the solenoid. Briefly touch a screwdriver across the terminals. This action will bridge the gap and send power directly to the starter motor, bypassing the ignition switch. The engine should crank. Remember, this method is a temporary solution, and it’s crucial to address the faulty ignition switch promptly.
How to Replace Ignition Switch
Replacing an ignition switch requires a few steps. Disconnect the car battery for safety. Remove the plastic covers surrounding the steering column. Once exposed, you’ll find the ignition switch. It’s often connected to the back of the lock cylinder. Unscrew or unclip it. Replace with the new switch by connecting it in the same position. Tighten all screws and reassemble the plastic covers. Lastly, reconnect the battery. Always refer to your vehicle’s manual for specific instructions.
Can a Bad Ignition Switch Cause Electrical Problems
Yes, a bad ignition switch can cause various electrical problems in a vehicle. These problems might include intermittent power loss, issues with the dashboard lights, or even total vehicle shutdown. Since the ignition switch is central to supplying power, any malfunction can disrupt the flow of electricity to essential parts of the vehicle.
How Much Is an Ignition Switch
The cost of an ignition switch varies depending on the make and model of your vehicle. Typically, the switch itself might range from $30 to $60 for most vehicles. However, if you’re hiring a mechanic for the replacement, labor costs can push the total price to anywhere from $150 to $250 or more. It’s best to check local auto parts stores or online retailers for specific pricing.
How to Replace Ignition Lock Cylinder
To replace the ignition lock cylinder, first, disconnect the car battery. Remove the steering column covers to access the lock cylinder. Depending on your vehicle, you might need to turn the key to a certain position to release a pin that holds the cylinder in place. Once released, pull out the old cylinder. Insert the new cylinder, ensuring it aligns correctly. Once it’s in place, test with the key. Reassemble the steering column covers and reconnect the battery.
Do You Need a New Key When Replacing Ignition Switch
Not always. If you’re only replacing the ignition switch, you can still use your existing key. However, if you’re replacing the ignition lock cylinder, it will usually come with a new set of keys. In this case, you would need to use the new keys provided.
How to Tell If Ignition Switch Is Bad
Several signs can indicate a bad ignition switch. If the car doesn’t start or struggles to start, that’s a possible sign. Other indicators include stalling while driving, flickering dashboard lights, or accessories like the radio not working properly. If you turn the key and nothing happens, or the engine starts but dies immediately, the ignition switch might be the culprit. Always consult a mechanic to diagnose the issue accurately.
How to Remove Ignition Lock Cylinder When Key Won’t Turn
If the key won’t turn in the ignition lock cylinder, it can be a challenge to remove. Start by applying a gentle tapping force using a hammer to the end of the key. This can help free up any pins that may be stuck. If this doesn’t work, try spraying a lubricant inside the keyhole. Insert the key again and wiggle gently. If you still can’t turn the key, you may need a locksmith or mechanic to help remove the cylinder without causing damage.
Where Is the Ignition Switch Located
The ignition switch is typically located on the steering column, just behind the ignition lock cylinder. In some vehicles, especially older ones, the ignition switch might be located on the dashboard. Always refer to the vehicle’s manual for the exact location.
How Much Does It Cost to Replace Lock Cylinder
Replacing a lock cylinder’s cost varies based on the vehicle model and the part’s quality. The cylinder itself can range from $50 to $250. Including labor, if done by a mechanic, the total cost can go from $150 to $450 or even more. Remember, luxury or specialized vehicles might have higher replacement costs.
When You Turn the Ignition Switch to Accessory
When you turn the ignition switch to the Accessory position, it allows you to use some of the car’s accessories, such as the radio, power windows, or dashboard lights, without starting the engine. This position is beneficial if you’re waiting in the car and want to listen to the radio without running the engine.
How to Install Ignition Switch
To install an ignition switch, begin by disconnecting the car battery. Remove the steering column covers to expose the ignition switch. Detach the old switch, typically by unscrewing or unclipping it. Connect the new switch, making sure to secure it in its designated position. Reattach all covers and reconnect the battery. It’s always wise to refer to your vehicle’s specific manual for detailed steps.
How to Fix a Bad Ignition Switch
If you suspect a faulty ignition switch, it’s usually best to replace it. Fixing might not be a long-term solution. First, disconnect the battery. Remove the necessary components to access the switch. Detach the old switch and replace it with the new one. Reassemble everything and reconnect the battery. If unsure, consult a mechanic.
Can You Replace an Ignition Switch Yourself
Yes, replacing an ignition switch can be a DIY task if you’re comfortable with basic automotive repair. Ensure you have the right tools and follow the vehicle’s manual or a trusted guide. However, if you’re uncertain or find the process complex, it’s best to get help from a professional mechanic.
How to Program a New Ignition Lock Cylinder
Programming a new ignition lock cylinder typically relates to programming the transponder key, not the cylinder itself. Many modern cars have a transponder in the key that communicates with the car’s security system. After replacing the cylinder and getting a new key, you might need to program it. The programming process varies by car model, but it often involves specific sequences of turning the ignition on and off, and using any provided reset tools or codes. If unsure, consult the vehicle’s manual or a locksmith.
When the Ignition Switch Is Turned to Lock
Turning the ignition switch to the Lock position shuts off the engine and all electrical components. It also allows you to remove the key and lock the steering wheel, enhancing the vehicle’s security. It’s the position you typically leave your car in after parking.
5 Pole Ignition Switch Wiring Diagram: In Conclusion…
Whether it’s a 5 pole ignition switch or not, the main function of any ignition switch is to power the engine and other accessories in the car. Ensure your ignition switch is in good shape because your car won’t start without it.
