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Chevy Silverado
Chevy S-10
Check Engine Light

How do you reset the computer to clear codes for the check engine light on a 1989 S-10?


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Wiki User
2015-07-16 18:24:10
2015-07-16 18:24:10

Sometimes simply disconnecting the battery will clear codes, or after cycling through the start mode so many times will do it .You can also plug an O.B.D. unit into your E.M.C. as a code reader and clear codes.

Pull the fuse for the ecm.

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pretty much instantly. As soon as the codes are cleared the check engine light goes off and vice versa, unless there still is trouble. In this case the codes won't clear until the trouble is repaired.

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you can either purchase a computer programmer ($200-$350+) that will allow you to check and clear codes as well as adjust computer settings for maximum performance or take the vehicle to most auto parts stores that can check the codes for free.

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Yes, P0700 is a code in the engine computer that tells you to check the trans computer for codes. You check those codes and repair them and P0700 will go away.Yes, P0700 is a code in the engine computer that tells you to check the trans computer for codes. You check those codes and repair them and P0700 will go away.

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You can disconnect the battery for about 5 minutes and this will clear the check engine codes stored in the computer. If the problem that caused the code has not been repaired the check engine code will just happen again. The only way to get the check engine light to not be on is to repair the problem then clear the codes.

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To check engine light codes one would have to bring your vehicle to a mechanic who can use a computer to check the computer chip that regulates this function.


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