Perform service on overhead console?
Just purchased my first Jeep 5months ago, 2004 Grand Cherokee. Two months ago my overhead console was saying perform service, had advance auto tell me it was right front wheel speed sensor. I replaced it and hit reset on console and everything was fine. It has now telling me again to perform service, had them connect up, their saying right front wheel speed sensor. Does that reset button reset the main ecu codes? Are they reading the old code from before? Also noticed when holding the reset button a variance with a number displays, what does that mean? Appreciate any info.
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