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If you turn the ignition key, but nothing happens, there is a chance that you have ignition switch issues. Several issues can make your ignition switch not work. But for now, my concern is how to deal with Volkswagen Jetta Ignition switch Problems.
A faulty ignition coil is the most common cause of a faulty ignition switch. You will need to replace it. However, the Crank position sensor, ignition module, loose ignition connections, and drain battery can be the reasons for this. You should also look for them when you have an issue.
Here, I will cover the 5 considerable causes you must check for when facing ignition switch issues on your Volkswagen Jetta.
Symptoms of Volkswagen Jetta Ignition Switch Problems
You may notice various symptoms if your Volkswagen Jetta ignition switch is faulty. Here, I have listed a few possible symptoms.
- You may face difficulty when trying to start the engine.
- Power loss while traveling on the road
- You turn the key, and it restricts you from turning
- Face a problem in inserting the key
- The car cranks but does not start
- Engine misfires
- The ignition switch stays on even when the key is removed
It may also help you: Dodge ram ignition switch problems
Causes of Volkswagen Jetta Ignition Key Problems
The Volkswagen Jetta ignition switch can be defective for the following reasons. If you are facing ignition switch issues, you must check for the below issues for a quick solution.
- Faulty Ignition Coil
- Crank Position Sensor Failure
- Ignition Module Failure
- Loose ignition switch connections
- Draining Battery
Volkswagen Jetta Ignition Switch Problems And Solutions
Problem 1: Faulty Ignition Coil
A faulty ignition coil is one of the most common causes of ignition switch problems. A faulty ignition coil fails to distribute proper power to the ignition system. The system will fail to start the engine.
- First, ensure your safety, wear gloves, and access the battery. Disconnect it and ensure no power is going to the ignition system.
- Then, check the ignition coil near the engine in the Volkswagen Jetta.
- Disconnect the electrical connections and then remove the mounting bolts.
- Remove the coil and inspect for physical damage. If the coil is broken or burned, replace it.
- For the replacement, I recommend the MCK 4x High Performance Ignition Coil for your Volkswagen Jetta.
- Mount the new ignition coil, test the ignition switch, and ensure the issue has been solved.
Problem 2: Crank Position Sensor Failure
The crank position sensor manages the engine’s timing and ignition system synchronization. If it fails, you may experience inconsistent ignition switch performance.
- Turn off your ignition switch and then disconnect the battery.
- Open your Volkswagen Jetta hood and locate the crank position sensor. It is usually mounted near the engine compartment.
- Unscrew the crank position sensor bolts and remove the sensor carefully. Inspect it to ensure it is faulty.
- If it is faulty, replace it with a compatible sensor. I recommend DAOKACUO Crank position sensor for your Volkswagen Jetta.
- Install the new crank position sensor and mount it with bolts.
- Now reconnect the battery and switch on the ignition switch to test its functions. Make sure the ignition switch is working excellently.
Problem 3: Ignition Module Failure
The ignition module is an essential component of the ignition system that ensures proper transmission of electrical signals to the system. If the module fails, it can cause issues such as a faulty ignition switch, a problem with engine start, engine misfires, etc.
- Park your vehicle and turn off the engine.
- Remove the car steering column cover and access the ignition system.
- Unscrew the ignition switch and remove it. Inspect the ignition module for physical damage.
- If it is faulty, take a new compatible module and mount it in the old ignition module’s position.
- Mount the switch and screw it in.
- Put the steering column cover on and turn on the engine.
- Test and ensure the problem is removed.
It may help you fix ignition switch issues on your Jeep Wrangler: Jeep Wrangler ignition switch problems.
Problem 4: Loose Ignition Switch Connections
If ignition switch connections are loose, they will disrupt the electric supply. Your ignition switch will also become unable to work. You cannot start the vehicle until you tighten the ignition switch connections.
- Open your car hood and disconnect the battery terminals.
- Then, come inside the vehicle and remove the steering column’s plastic covers. You will see the ignition switch.
- Unscrew the ignition switch bolts and remove them.
- Inspect for the wires on the back of the switch. Check all ignition switch connections and ensure they are tight. If loose, tighten them. If you see broken wires, also replace them.
- Once tightened, mount the ignition switch by screwing in its bolts.
- Finally, take a test to confirm the problem has been fixed.
Fixing Chevy Silverado ignition system issues will be easy if you read this: 2008 Chevy Silverado ignition switch problems.
Problem 5: Draining Battery
The battery is the major power source for the electrical system in the vehicle. You may not start the vehicle using the ignition switch if the battery is dead or low on charge.
- Park your vehicle and turn off the engine.
- Then, open the car’s hood and look for the battery.
- Gently remove the terminals and unscrew the container that holds the battery.
- Remove the battery and place it on a level surface.
- Connect its terminals to the multimeter. Make sure you have the correct multimeter. For accuracy, I recommend Klein Tools MM325 Multimeter. It ensures satisfactory results.
- Check the voltage; it should be 12.4 V. Put your battery on recharge if it is below. Wait for at least half an hour and recheck the voltage. If it is 12.4, the battery is okay; recharge and reinstall it.
- But if the charging is not 12.4, you must replace your battery.
- Replace it with a good-quality battery and test the ignition switch. Ensure there is no issue with ignition.
Volkswagen Jetta Ignition Switch Replacement
To replace the ignition switch on your Volkswagen Jetta, follow the instructions given below.
- Park your car and turn the engine off.
- Then, open its hood and locate the battery. Disconnect the battery from electrical systems to prevent electric shocks.
- Then, remove the steering column cover and locate the ignition switch. The ignition switch will be mounted with screws.
- Unscrew the bolts, gently pull out the faulty ignition switch, and set it aside.
- Now, unpack the new ignition switch and secure it in its proper place.
- Put the steering column cover on and insert the ignition key. Turn the key and ensure the ignition switch is working fine.
Learn more about ignition switch issues here: Honda Accord ignition switch problems and solutions.
Volkswagen Jetta Ignition Switch Replacement Cost
The cost of the Volkswagen Jetta ignition switch replacement varies from mechanic to mechanic. Usually, it may cost you $185, but after including the cost of the switch or other parts, it may be up to $480.
Volkswagen Jetta Ignition Switch Recall
The Volkswagen recall facility lets you get a free repair for ignition switch faults.
- Visit the dealership or Volkswagen website for recall.
- They will ask you to provide VIN for verification.
- Once you provide it and it’s confirmed, you will get an appointment for repair.
- On the due date, your vehicle will be repaired.
Frequently Asked Questions (FAQs):
Why is my VW Jetta ignition not turning?
There can be multiple reasons, but a locked steering column, faulty ignition switch, or key issues are the major reasons for ignition not turning. You can fix them quickly if you look for these issues first.
How do you reset an ignition switch?
01. Turn the key to “ON” and let it sit for 10 to 11 minutes.
02. Then, turn the key to “OFF” for about 10 seconds.
03. Again, turn the key to “ON” for 10 to 11 minutes.
04. Back to the off position for 10 seconds, and then turn to ” ON” for 11 minutes.
05. Now turn it off and then start the engine. Your ignition will reset.
Can you bypass the ignition switch?
Yes, you can bypass the ignition switch. Follow the steps below to bypass the ignition switch on the Volkswagen Jetta.
01. Connect the battery’s positive terminal to the ignition coil’s positive side.
02. Then, connect the solenoid starter to the battery’s positive terminal.
03. Next, unplug the vehicle’s ignition switch wire from the solenoid and short the terminal where the ignition switch connects.
04. It will spark, and you will be able to start the engine.
Do I need to reprogram if I change the ignition switch?
There is no need to replace the ignition switch. However, if you replace the key, it must be reprogrammed. Sometime after replacing the crank position sensor, if you see the switch is not working, you may need to reprogram it.
Fixing the ignition switch on a Volkswagen Jetta is not a simple task, but you can fix it if you have the right tools and follow the proper instructions. It may take 2 to 3 hours to get back on the road. But before fixing, ensure you have the basic mechanical skills; otherwise, you may face serious damage instead of solving the problem.