Question about 2005 Buick LaCrosse

1 Answer

Check Engine Light

Can I reset my Check Engine light by disconnecting my battery and then re-connecting it?

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1 Answer

Yes but why !

You loose all the I/M Monitors that ran & all
data & possibly some shift strategy & relearns

Forget it-- unless you know you repaired something
& tested the new parts

If you clear codes or check lights, you can't
find the problems to diagnose & repair.

If your going to remove a battery cable, you need
to know if you loose radio codes or if the car will
even start,every vehicle is different.

You don't clear a check light after making a repair, unless
they are ones that have to be cleared after you road test
to confirm a repair.

If you have a check light or MIL Lamp on, you have OBD 2 System
Faults to work on.

Posted on Mar 25, 2014


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Posted on Jan 02, 2017

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SOURCE: How do I reset my Check Engine Light?

you could go to an auto parts store and they can reset it for you, or you could pull your battery cables off the battery and hold them together for about 10 sec. that will clear any codes.

Posted on May 29, 2009

  • 362 Answers

SOURCE: Check engine light is on and nothing is wrong

Your vehicle’s computer system has self-testing capability. When the computer senses that there is a problem with one of the components or sensors it stores the correspondent trouble code(s) in its memory and lights up the "Check Engine" or "Service Engine Soon" light to tell you that there is a problem and you need to diagnosed and repaired it. The list of possible codes number in the hundreds. The code itself doesn't tell exactly what component is defective - it only indicates where to look, or what engine parameter is out of normal range. Even if you reset the light, if the underlying problem is not addressed it will come back on. If you want to reset the light don't disconnect the battery cable, find a buddy with a code reader.

Posted on Mar 10, 2009

  • 884 Answers

SOURCE: Have 2001 Buick LeSabre with Check Engine light.

Why would you disconnect the battery?

Do you have a security light on or flashing when you try to start it?

Posted on Aug 21, 2013

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