How do you reset the check engine light on a 2009 Jeep Liberty?

Posted on by Muna Meyer

How do you reset the check engine light on a 2009 Jeep Liberty?

Turn the key in the ignition to the “on” and then the “off” position three times in succession and try starting the engine. Disconnect the positive battery cable for 15-20 minutes. Reconnect and repeat the previous “on” and “off” steps outlined above.

Why is my Jeep check engine light on?

When your Jeep check engine light comes on, it means the onboard diagnostic system has detected a problem with the engine, emission system, and in some cases, even the transmission. The most common problems that trigger Jeep check engine lights to come on are worn spark plugs, bad oxygen sensors, or loose gas caps.

Can I drive my Jeep with the check engine light on?

Can you drive a car with the engine light on? It’s okay to drive for a few miles, but be sure to schedule an inspection of the engine as soon as possible. If the check engine light comes on while you’re driving, don’t panic! Just be sure to have your car inspected as soon as possible after the light turns on.

How do you clear the codes on a Jeep Liberty?

How to Clear Engine Codes for a Jeep Liberty

  1. Open the driver’s side door of the Jeep Liberty and locate the diagnostic link connector (DLC) under the dash.
  2. Plug the pocket scanner into the DLC and then turn the ignition key to the accessory position.
  3. Read the onscreen menu of the scanner.
  4. Choose “Erase” as an option.

Thermostat : Engine thermostats that are stuck or not opening all the way are a fairly common problem on Jeep vehicles.

  • EGR Valve: On Jeep engines,EGR related problem is usually caused by a stuck EGR valve.
  • Catalytic Convert: Higher-mileage Jeeps are likely to have issues with emission control systems.

    • How do you reset the Check Engine light on?

    Use an OBD2 Scanner. If you have an OBD2 scanner available,you can reset your Check Engine Light within seconds.

  • Battery Disconnection Technique. The best way to reset the check engine light without a scan tool is by removing the battery terminal for 30-60 seconds.
  • Turning the Ignition On and Off.
  • Let it Go Off Itself.
  • Pulling Off the Fuse and put back.

    • How to clear engine codes for a Jeep Liberty?

    Locate the battery in the engine compartment. It is located on the driver’s side directly behind the headlight.

  • Loosen the bolt on the negative battery cable using the adjustable wrench and remove the cable from the negative post.
  • Press the negative battery cable end onto the negative post.

    • What does a check engine light flashing mean?

    What Does A Flashing Check Engine Light Mean? A flashing check engine light signals an emergency and requires immediate repair. The more you drive with a blinking check engine light, the more damage you may cause to your engine. It is often caused by a misfire due to fuel or spark problems.