Starting a Jeep Cherokee with a screwdriver is possible, but it requires knowing exactly which wires to connect. This method is often used in emergencies when you’ve lost your keys or the ignition cylinder has failed. However, it’s not a simple “jam it in and turn” trick—you need to understand the steering column wiring and use the screwdriver as a tool to bypass the ignition switch safely.
Before you try anything, remember that tampering with your Jeep’s ignition can cause damage if done wrong. This guide is for informational purposes only, and you should always prioritize getting a proper key made or replacing the ignition lock cylinder. Let’s break down the process step by step.
Understanding The Jeep Cherokee Ignition System
The Jeep Cherokee, especially models from the 1980s to early 2000s, uses a standard mechanical ignition system. The key turns a cylinder that connects to an electrical switch behind it. When you turn the key, it sends power to the starter, ignition coil, and fuel system.
Using a screwdriver essentially mimics the key’s action. But you won’t be turning the lock cylinder itself—you’ll be accessing the wires or the switch directly. Most Cherokees have a column-mounted ignition, which means the switch is located near the base of the steering column.
Tools You Will Need
- A flathead screwdriver (medium size, about 6–8 inches long)
- A small pry tool or another flathead for trim removal
- Wire strippers or a knife (optional, if you need to expose wires)
- Electrical tape or zip ties (for securing wires afterward)
- A multimeter or test light (optional, for verifying power)
Safety Precautions First
- Disconnect the battery negative terminal before working near the steering column. This prevents accidental shorts or airbag deployment.
- Wear safety glasses—metal shavings or plastic pieces can fly when prying.
- Never force the screwdriver into the ignition cylinder. You could break the cylinder or damage the steering column lock.
- Be aware that bypassing the ignition may disable the steering wheel lock, making the vehicle easier to steal. Only do this on your own vehicle.
How To Start A Jeep Cherokee With A Screwdriver
This is the core section. Follow these steps carefully. The exact procedure can vary slightly depending on your Cherokee’s year (XJ, ZJ, WJ, etc.), but the general principle is the same.
Step 1: Remove The Steering Column Covers
Most Jeep Cherokees have plastic covers around the steering column held together by screws or clips. Look for screws on the bottom side of the column. Use your screwdriver to remove them. If there are no screws, gently pry the covers apart with a trim tool.
Once the covers are off, you’ll see the ignition switch assembly, wiring harness, and the back of the key cylinder. Take a moment to identify the main ignition harness—it’s usually a thick bundle of wires coming from the lock cylinder.
Step 2: Locate The Ignition Switch Wires
Behind the key cylinder, you’ll find a plastic connector with several wires. The key wires are typically:
- Battery (B+) – Constant 12V power, usually a thick red or orange wire.
- Ignition (IGN) – Powers the ignition system and accessories, often a pink or yellow wire.
- Starter (ST) – Engages the starter motor, usually a purple or yellow wire.
- Accessory (ACC) – Powers things like the radio, often a brown or gray wire.
If you’re unsure, use a multimeter to find the constant 12V wire (it will show voltage even with the key off). The starter wire will only show voltage when you turn the key to the start position.
Step 3: Bypass The Ignition Using The Screwdriver
Now comes the critical part. You have two main methods:
Method A: Using the screwdriver on the ignition switch directly. Some Cherokees have a slot or a tab on the ignition switch that you can turn with a flathead screwdriver. Insert the screwdriver tip into the slot and turn it clockwise to the “Run” position. Then, briefly turn it further to “Start” to crank the engine. Release it back to “Run” once the engine starts.
Method B: Jumping the wires. If you can’t access the switch directly, you’ll need to jump the wires. First, strip about 1/2 inch of insulation off the ends of the battery and ignition wires. Twist them together or use a screwdriver to bridge the connection. This powers the ignition system. Then, briefly touch the starter wire to the same connection to crank the engine. The screwdriver acts as a conductor here.
Be careful not to touch the wires together for too long—you could burn out the starter or cause a fire. Once the engine starts, separate the starter wire immediately.
Step 4: Start The Engine
With the wires connected correctly, the engine should crank and start. If it doesn’t, check your connections. The battery wire must have good contact. Also, ensure the transmission is in Park or Neutral (and the clutch is depressed if it’s a manual).
If the engine starts but dies immediately, you may have missed the ignition wire. Recheck your wiring diagram for your specific year. Some Cherokees have a separate wire for the fuel pump that also needs power.
Step 5: Secure Everything And Drive
Once the engine is running, you can tape the wires together temporarily to keep them connected. Do not leave bare wires exposed—they can short out and cause a fire. Use electrical tape or zip ties to secure the connections. Drive carefully, as the steering wheel lock may be disengaged.
Remember, this is a temporary fix. You should replace the ignition lock cylinder or get a new key made as soon as possible.
Common Issues And Troubleshooting
Even with the right steps, things can go wrong. Here are common problems and how to fix them.
Engine Cranks But Won’t Start
This usually means the ignition wire isn’t getting power. Double-check that you’ve connected the battery wire to the correct ignition wire. Also, check the fuel pump fuse—some Cherokees have a separate relay that needs to be activated.
No Power At All
If the dashboard lights don’t come on, you likely have a bad battery connection or a blown fuse. Check the main fuse box under the hood. Also, ensure the battery terminals are clean and tight.
Steering Wheel Locked
If you can’t turn the steering wheel, the lock mechanism is engaged. Insert the screwdriver into the ignition cylinder slot and try to turn it while gently turning the steering wheel. Sometimes you need to jiggle the wheel to release the lock.
Screwdriver Slips Or Doesn’t Turn
If the screwdriver tip is too small or too large, it won’t engage the switch properly. Use a screwdriver with a tip that fits snugly into the slot. You can also wrap the tip with tape to make it thicker.
Alternatives To Using A Screwdriver
If you’re uncomfortable with the screwdriver method, there are other ways to start a Jeep Cherokee without a key.
Using A Jumper Wire Or Paperclip
Instead of a screwdriver, you can use a paperclip or a piece of wire to jump the ignition wires. This is gentler on the wiring and less likely to cause damage. Simply insert the paperclip into the back of the ignition connector to bridge the battery and ignition terminals.
Replacing The Ignition Lock Cylinder
This is the permanent solution. You can buy a new lock cylinder from an auto parts store for around $20–$50. Remove the old cylinder by inserting a small tool into the release hole (usually on the side of the cylinder) and pulling it out. Install the new one with the same key code or get it rekeyed.
Calling A Locksmith
If you’re not comfortable with DIY, a locksmith can make a new key or bypass the ignition professionally. This is the safest option and usually costs between $50 and $150.
Legal And Ethical Considerations
Starting a car with a screwdriver can be seen as suspicious. Only do this on your own vehicle. If you’re helping a friend, make sure you have their permission. In some jurisdictions, possessing tools for bypassing ignitions can be considered burglary tools.
Also, if your Jeep has an immobilizer system (common in later models), the screwdriver method won’t work. The computer will cut fuel and spark if it doesn’t detect the correct transponder chip in the key.
Frequently Asked Questions
Can I Start A Jeep Cherokee With A Screwdriver If It Has A Chip Key?
No. If your Cherokee has a transponder key (usually after 1998), the engine control unit requires the chip’s signal. A screwdriver bypass will not provide that signal, so the engine will crank but not start.
Is It Safe To Drive With The Ignition Wires Exposed?
It’s not safe for long-term use. Exposed wires can short out, cause a fire, or damage the electrical system. Only drive short distances and secure the wires with electrical tape until you can fix the ignition properly.
Will This Method Work On A Jeep Cherokee With A Push-button Start?
No. Push-button start systems use electronic key fobs and immobilizers. A screwdriver cannot bypass these systems. You would need to have the fob reprogrammed or replaced.
What If I Break The Ignition Cylinder While Trying?
If you break the cylinder, you’ll need to remove the steering column and replace the entire lock assembly. This is a more involved repair. It’s better to use gentle pressure and avoid forcing the screwdriver.
Can I Use A Screwdriver To Start A Jeep Cherokee With A Dead Battery?
No. The screwdriver method only bypasses the ignition switch. If the battery is dead, you’ll need to jump-start the vehicle first. The screwdriver won’t provide any power.
Final Thoughts On This Emergency Method
Starting a Jeep Cherokee with a screwdriver is a handy skill for emergencies, but it’s not a substitute for proper repairs. The process is straightforward if you understand the wiring and take safety precautions. Always disconnect the battery first, identify the correct wires, and use the screwdriver as a tool to bridge connections—not as a hammer.
If you find yourself needing to do this often, it’s a sign that your ignition system needs attention. Replace the lock cylinder or get a new key made. Your Jeep will be more reliable, and you won’t have to worry about carrying a screwdriver everywhere.
Remmeber, practice on a vehicle you own, and never use this knowledge for illegal purposes. Stay safe and keep your Cherokee running.