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How to Check and Reset Engine Codes

277538 Views 71 Replies 56 Participants Last post by  radioactive
2000 and newer Dakotas and Durangos have a built-in system that can display check engine light (CEL) codes without the use of a scanner. 1999 and earlier Dakotas/Durangos must be read with a scanner, check your local dealership or auto parts store for assistance.

To check your engine codes:
Turn the key to ON (not start), OFF, ON, OFF, ON and leave it there. If you look in the odometer window the codes will flash any code(s) with a small delay between each result. Each code should be in a P#### format and will say PDONE when completed - turn your key to OFF and remove. Use the OBD code list to determine what problem the computer detected.

To reset your engine codes:
Remove the negative terminal of your battery (10mm wrench).
Turn your ignition key to START and hold it there for about 15 seconds.
Turn your ignition key to OFF and remove it.
Connect the negative terminal of your battery.
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I have a '99 Durango,5.9, 4X4. I recently have incurred a "no bus" displayed in the odometer space. The engine fails to start, the odometer flashes 4 times, then the no bus comes up, the fuel guage also fails to function. On occasion after a short period with the switch on there will be a "ding", the fuel gauge rises and the truck will start and run for a period. the check engine light does come on, but an OBD check reveals no codes.
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