Question about 2001 Jeep Grand Cherokee
I'm not sure which sensor you replaced on your Jeep. I will assume you had diagnostics run and replaced a sensor based on a trouble code.
Observing the odometer display...
Turn the Key On, Off, On, Off, and On again (three times, just to the point where the dash warning lights come NOT Engine Cranking).
Now diagnostic trouble codes will display where miles is normally displayed in the odometer. Write down these codes. Note- If you lose track of the codes or wish to double/triple check the codes, simply turn the Key Off and start over.
Now clear the codes by disconnecting the negative battery cable for five minutes.
Reconnect the battery cable and check the codes.again. There should not be any codes UNLESS- there is a fault the computer (PCM) recognizes immediately OR you were unsuccessful erasing the codes. IF there are less codes than when you began, the erase was successful but there is still a problem.
To stop nitpicking, I'm going to assume there are no trouble codes displayed after clearing the codes and reconnecting the battery. Now test drive to see if the code comes back. If no codes appear after a few days (approximately 50 miles, although the threshold is more complicated than I need to get into) it appears your repair was successful.
Update us as necessary on your problem.
Posted on Nov 20, 2008
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