On most Dodge, Chrysler and Jeep models built after 2000, with a digital odometer can run a self-diagnostic and display OBD-II p-codes. Let’s give it a try….
Get in the vehicle, and close all the doors. Without starting the engine, cycle the ignition ON-OFF-ON-OFF-ON within 5 seconds. Where the odometer is should now be displayed “p-codes” (ie. P0123). When all of the codes have been retrieved or if there are no codes in memory, you will then see “dONE”.
Make sure to end in the ON position, and do it quickly- within 5 seconds. If you don’t get it on the first try, cycle the ignition OFF. Wait 10 seconds. Try again. On your first try, it can be tricky!
Once you have obtained your p-codes, you can then look up the meaning for them on the OBD-II p-code list. Many of the codes are fairly straight forward, however if you need more help determining the root cause of the problem or need a location of the part or sensor in question, or just have a question concerning your problem, you may want to consider talking with a professional auto tech. Some problems will require the use of some diagnostics before the repair to ensure you are making the correct repair, while others may require the use of a special tool to more easily get the job done. The tools of the trade article can show you what these tools look like and you can decide which tool you will need to better diagnose and repair your problem.