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1997 Oldsmobile Cutlass Supreme Question: How can I reset the "Service Engine Soon Light"



garageman, Janesville, WI, June 23, 2010, 11:11

How can I reset the "Service Engine Soon" light ? I disconnected the Air Flow Sensors and started the car several times while I was working on it. The repairs are finished and the "Sensors" have been reconnected. However,
the "Service Engine Soon" light stays on after the car is started.

3 Answers
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  • Answer #1

    June 23, 2010, 11:21

    after it passes its internal tests 3 times, it will reset itself. if it persistes, then there is a problem. it could take up to a few days before it will clear.
    you can try removing the negative cable for about 10 seconds but that may or may not clear the code.


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  • Reply

    garageman, June 24, 2010, 20:41

    Very GOOD Guys !! Just as you said, the "Service Engine Soon" light turned itself off after one (1) day. Thanks ever so much for the help.

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  • Answer #2

    Visitor, November 15, 2010, 16:10

    I have 1997 Dodge Grand Caravan. I have had the engine tune up, changed the upper sensor, egr valve still service engine soon light stays on

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  • Answer #3

    Visitor, November 30, 2010, 17:26

    turn the key on without starting,press the excelerator all the way to the floor 3 times.the light should go off.

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