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clearing a Check Engine Light due to maintenance

just visited local AutoZone for the OBD scanner code and they adviced the Check Eng light is on due to computer asking for maintenance (air, oil, fluids) at some 77 or 78k interval - it's some kinds of "hey dude, do the maintenance" reminder

car is a mazda -98 with 78k miles and I assume that I can simply disconnect negative terminal of battery (ground) to reset computer or do I have to actually have the code reset with a scanner or some diagnostic screw terminal on the instrument panel?

reason the light does not apply is that all the items have been done, usually at every 3 to 5k intervals, since new.

Reply to
Tom
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No, it is because there is something WRONG. That is an OBDII vehicle so grab a code reader and find out what the code is. It can be just about anything.

Reply to
Steve W.

I got the actual printout of the code (not with me at the moment) and it translates in the list of codes as generic maintenance update alert/alarm which occurs at 77-78k miles on the odometer

the resolution was listed as "do the recommended maintenance and reset computer"

Reply to
Tom

I dunno how to clear the warning on your buggy, and don't know if depowering will do it, but remember that your computer likely "learns" itself in the beginning. If you depower, that learning is lost and you should follow the procedures in your owner's manual for recovering from repower.

Pete

Reply to
ratatouillerat

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