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How do you reset the check engine light on a 2002 Jeep Liberty?

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How do you reset the check engine light on a 2002 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.

How do I find my Jeep diagnostic code?

How To Retrieve Your Jeep’s Diagnostic Code

  1. Insert the key into the ignition.
  2. Turn the ignition On-Off-On-Off-On within 5 seconds.
  3. Record the 2-digit DTC as displayed by the flashing MIL.

How do you check engine light code without scanner?

Press the odometer’s Trip and Reset buttons while turning the ignition key ON. After turning the key ON, release the odometer Reset and Trip buttons to check if the Diagnostic Trouble Code or DTC appears on the odometer display.

What does check engine light mean on Jeep Liberty?

The check engine light for the Jeep Liberty means that the on-board diagnostics or the OBD detected a problem with the engine, emission system or the transmission though it is less common for it to be the transmission.

How do you reset the code 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.

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

Resetting the Check Engine Light:

  1. Make sure the engine is not running and key is out of the ignition.
  2. Disconnect the battery terminals.
  3. Wait 5 minutes.
  4. Reconnect battery terminals.
  5. Insert and turn the ignition key to the run position without starting.
  6. All error codes are cleared and CHECK ENGINE icon disappeared.

How to check engine light codes?

Locate your vehicle’s OBD port. The most common mounting location for an OBD port is under the driver’s side of the dash near the pedals.

  • Plug your OBD scan tool into the connector. The scan tool’s male end will only fit one way onto the vehicle’s connector.
  • Read the codes in the computer. Each scan tool will have different instructions on how to operate it,so read yours carefully.
  • Record the codes that display. If there are multiple codes,they may cycle through or you may have to press a button to view the next code.

    • How to ckeck engine light codes?

    Following are the steps that you need to follow for this method: The first thing that you need to do is to turn the ignition key on and off without cranking the engine. You have to follow the same exact step that you did previously, once again. This process will be ended when you bring the key to “on”.

    Can there be codes without check engine light on?

    Just because the check engine light (CEL) is not on it doesn’t mean there are no codes in your computer memory. You car’s computer may still store pending codes. These are codes related to potential problems the computer detected once and haven’t reappeared. These codes can still help you.

    Why is my Jeep check engine light on?

    A failing oxygen sensor, also known as an O2 sensor, is one of the most common reasons for that Jeep check engine light to come on. And the tricky thing with the O2 sensor is that the car will continue to drive well so you might want to dismiss the light. But an O2 sensor code will surely show up in a diagnostic test.

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