If you’re having trouble starting your car, the ignition switch may be to blame. This is a common problem that can be easily fixed with a few simple tools. Replacing the ignition switch is a relatively straightforward process, but it does require some electrical knowledge. If you’re not comfortable working with electrical systems, it’s best to leave this job to a professional. However, if you’re up for the challenge, here’s a step-by-step guide on how to change an ignition switch.
Before you start, you’ll need to gather a few tools. You’ll need a screwdriver, a wrench, and a pair of pliers. You may also need a multimeter to test the new ignition switch before installing it. Once you have your tools, you can begin the process of replacing the ignition switch. First, you’ll need to disconnect the negative battery terminal. This will prevent any electrical shock hazards. Next, you’ll need to locate the ignition switch. It’s usually located on the steering column. Once you’ve found the ignition switch, you’ll need to remove the screws that hold it in place.
Once the screws are removed, you’ll need to disconnect the electrical connectors from the ignition switch. There will be several connectors, so be careful not to mix them up. Once the electrical connectors are disconnected, you can remove the ignition switch from the steering column. Now, you’re ready to install the new ignition switch. Simply insert the new ignition switch into the steering column and tighten the screws. Then, reconnect the electrical connectors. Finally, reconnect the negative battery terminal and test the new ignition switch to make sure it’s working properly.
Disconnecting the Battery
Before embarking on the task of replacing your ignition switch, it is imperative to disconnect the battery to ensure your safety and prevent any electrical mishaps. This precautionary measure will effectively isolate the electrical system, rendering it safe for you to handle the wiring and components without the risk of electric shock or accidental activation.
To disconnect the battery, follow these steps with meticulous care:
- Locate the battery: Typically situated in the engine compartment, the battery is a rectangular box with two terminals—one positive (+) and one negative (-).
- Identify the negative terminal: Look for the terminal marked with a negative (-) sign or black insulation.
- Loosen the negative terminal nut: Using a wrench or socket, carefully loosen the nut securing the negative terminal to the battery.
- Remove the negative terminal: Gently lift the negative terminal off the battery post and secure it away from the terminal to prevent accidental reconnection.
With the negative terminal disconnected, the electrical system is safely disabled, allowing you to proceed with the ignition switch replacement without electrical hazards.
Removing the Steering Wheel
Before you begin removing the steering wheel, ensure you take safety precautions. Disconnect the negative battery terminal to prevent any electrical accidents. Gather necessary tools, such as a steering wheel puller, a socket wrench, and a flat-head screwdriver.
Locate the steering wheel bolt cover, usually hidden behind the horn pad. Remove the cover to expose the steering wheel bolt.
Use the socket wrench to loosen the steering wheel bolt. However, do not remove it completely just yet. Next, attach the steering wheel puller to the steering wheel. Tighten the bolts on the puller evenly, ensuring it is securely in place.
| Step 1: Remove the Steering Wheel Bolt Cover | Step 2: Loosen the Steering Wheel Bolt | Step 3: Attach the Steering Wheel Puller |
|---|---|---|
| Locate and remove the cover behind the horn pad | Use a socket wrench to loosen the bolt, but do not remove it | Securely attach the steering wheel puller using the puller bolts |
Slowly and steadily, tighten the center bolt on the puller. As you tighten, the steering wheel will start to pull away from the steering column. Once the wheel is completely detached, carefully remove the puller and set the steering wheel aside in a safe location.
Disconnecting the Ignition Switch Electrical Connector
Unplugging the electrical connector from the ignition switch is a crucial step in the removal process. Follow these detailed instructions to ensure a safe and effective disconnection.
Step 1: Locate the Electrical Connector
The ignition switch electrical connector is typically located behind the switch itself or in close proximity to it. It may be covered by a protective cap or housing.
Step 2: Identify the Connector Type
There are various types of electrical connectors used for ignition switches. Common types include push-in connectors, screw terminals, and quick-release connectors.
Step 3: Remove the Protective Cap or Housing
If the electrical connector is concealed by a cap or housing, gently pry it off using a flat-head screwdriver or plastic trim tool. Avoid using excessive force to prevent damage to the housing or surrounding components.
Step 4: Disconnect the Connector
Depending on the connector type, use the following methods to disconnect it:
| Connector Type | Disconnection Method |
|---|---|
| Push-in Connector | Push in on the connector’s retainer and simultaneously pull it straight out. |
| Screw Terminal | Loosen the screws holding the wires in place and pull the wires out of the connector. |
| Quick-Release Connector | Press the release button or lever on the connector to unlock it and pull the connector apart. |
Step 5: Note Wire Positions
As you disconnect the wires from the connector, note their positions for easy reconnection during reassembly. You may use a pen and paper or take a picture of the wiring arrangement for reference.
Installing the New Ignition Switch
7. Wiring the Ignition Switch
Once the ignition cylinder is installed, it’s time to wire the ignition switch. The wiring harness connects to the back of the switch, and each wire has a specific function. Refer to the wiring diagram for your specific vehicle to identify each wire and its corresponding terminal. Typically, the wires are color-coded as follows:
| Wire Color | Function |
|---|---|
| Red | Battery power |
| Yellow | Starter solenoid |
| Black | Ground |
Cautions:
- Ensure that the battery is disconnected before handling any electrical components.
- Double-check all wiring connections before reconnecting the battery.
- Avoid using crimp connectors; instead, solder and heat shrink the connections for a secure and reliable connection.
- Protect the wires from pinching or rubbing against sharp edges.
- Route the wiring harness through the designated channels or grommets provided in the dashboard.
- Align the Housing: Position the ignition switch housing over the steering column, ensuring that the mounting holes line up with the bolt holes.
- Insert Bolts: Insert the two bolts into the mounting holes and hand-tighten them until they’re snug.
- Tighten Bolts: Using a wrench or socket, tighten the bolts to the specified torque, as per the vehicle’s manufacturer’s instructions.
- Secure Housing: Ensure that the ignition switch housing is securely fastened to the steering column.
- Reconnect Wire Harness: Plug the electrical wire harness back into the ignition switch, ensuring a tight connection.
- Engage Steering Wheel: Insert the steering wheel onto the steering column and turn it back and forth to verify proper engagement.
- Fasten Steering Wheel: Tighten the steering wheel bolt or nut to the specified torque, as per the vehicle’s manufacturer’s instructions.
- Complete Installation: Check all connections and ensure that the ignition switch is functioning properly before completing the installation process.
- Disconnect the negative battery terminal. This will prevent any electrical shocks.
- Remove the steering wheel. There are two bolts that hold the steering wheel in place. Remove these bolts and then pull the steering wheel off.
- Locate the ignition switch. It’s usually located on the steering column, behind the steering wheel.
- Remove the screws that hold the ignition switch in place. There are usually two or three screws.
- Pull the ignition switch out of the steering column.
- Connect the new ignition switch to the wiring harness. The wiring harness is a bundle of wires that connects the ignition switch to the rest of the vehicle’s electrical system.
- Insert the new ignition switch into the steering column.
- Tighten the screws that hold the ignition switch in place.
- Reinstall the steering wheel.
- Reconnect the negative battery terminal.
- The car won’t start.
- The car starts intermittently.
- The car stalls while driving.
- The car’s electrical system is intermittent.
Reinstalling the Ignition Switch Housing
Once the ignition switch has been connected to the steering column, it’s time to reinstall the housing. Here’s a detailed breakdown of the steps involved:
Reinstalling the Steering Wheel
1. Carefully align the steering wheel with the splines on the steering column.
2. Push the steering wheel onto the column until it fits snugly.
3. Tighten the steering wheel nut using a torque wrench, following the manufacturer’s specifications.
4. Reinstall the steering wheel cover or airbag, if applicable.
5. Reconnect the battery.
6. Turn the key to the “On” position to check if the ignition switch is working correctly.
7. If the ignition switch is not working, check the wiring connections and fuses.
8. If the wiring connections and fuses are good, the ignition switch may need to be replaced.
9. To replace the ignition switch, remove the steering wheel and disconnect the electrical connectors from the switch.
10. Carefully remove the ignition switch from the steering column.
11. Install the new ignition switch on the steering column and reconnect the electrical connectors.
12. Reinstall the steering wheel and tighten the steering wheel nut.
| Step | Description |
|---|---|
| 1 | Align the steering wheel with the splines on the steering column. |
| 2 | Push the steering wheel onto the column until it fits snugly. |
| 3 | Tighten the steering wheel nut using a torque wrench, following the manufacturer’s specifications. |
| 4 | Reinstall the steering wheel cover or airbag, if applicable. |
| 5 | Reconnect the battery. |
| 6 | Turn the key to the “On” position to check if the ignition switch is working correctly. |
| 7 | If the ignition switch is not working, check the wiring connections and fuses. |
| 8 | If the wiring connections and fuses are good, the ignition switch may need to be replaced. |
| 9 | To replace the ignition switch, remove the steering wheel and disconnect the electrical connectors from the switch. |
| 10 | Carefully remove the ignition switch from the steering column. |
| 11 | Install the new ignition switch on the steering column and reconnect the electrical connectors. |
| 12 | Reinstall the steering wheel and tighten the steering wheel nut. |
How To Change Ignition Switch
The ignition switch is a vital part of your car’s electrical system. It allows you to start your car, and it also controls the flow of electricity to the rest of the vehicle. If your ignition switch fails, you won’t be able to start your car. In this article, we’ll show you how to change your ignition switch.
Before you start, you’ll need to gather a few tools. You’ll need a screwdriver, a wrench, and a new ignition switch. You can find a replacement switch at your local auto parts store.
Once you have your tools, you can follow these steps to change your ignition switch:
Once you’ve followed these steps, your new ignition switch should be installed and working properly.
People Also Ask About How To Change Ignition Switch
What are the symptoms of a bad ignition switch?
There are a few symptoms that can indicate a bad ignition switch. These symptoms include:
How much does it cost to replace an ignition switch?
The cost to replace an ignition switch varies depending on the make and model of your car. However, you can expect to pay between $100 and $300 for the part and labor.
Can I replace an ignition switch myself?
Yes, you can replace an ignition switch yourself with the right tools and knowledge. However, if you’re not comfortable working on your car, it’s best to leave it to a mechanic.
