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Edited by 94zj318, Teresa, Maluniu

If you own a 1999-2010 Jeep Grand Cherokee, and your 'Check Engine' light is on, you can easily check for Diagnostic Trouble Codes (DTC's) without a scanner using just a simple key sequence.

Edit Steps

  1. 1
    Get into your vehicle and make sure the hood, rear tailgate, and all doors on your vehicle are shut.
  2. 2
    Insert your key into the ignition slot, and turn it from 'Off' to 'On' (Do NOT start your vehicle) 3-5 times until 'DTC REPORT' appears in the odometer display for 2005-2010 models, or the DTC's start displaying on 1999-2004 models.
  3. 3
    Write down all codes, starting with the letter 'P', and ending with 4 numbers (0-9). When the DTC check is done, either 'd0nE' on 1999-2004 models or 'DONE' on 2005-2010 models will appear on the odometer display.
  4. 4
    Shut your vehicle off.
  5. 5
    Search online for your DTC code (it is generic for all vehicles made after 1997). You now know why your vehicle's 'Check Engine' light is on!

Edit Tips

  • Don't worry if you have trouble activating the DTC check the first few times, as it is difficult.

Edit Things You'll Need

  • Your Vehicle
  • A Pen
  • A Notepad
  • A Computer w/ Internet
  • Your Vehicle's Key

Article Info

Categories: Cars & Other Vehicles

Recent edits by: Teresa, 94zj318

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