Question about 2004 Cadillac Deville

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It seems the battery in my 04 cadillac deville is dead. I know the battery is located under the rear seat. Can I remove it without adverse effects on the computer?

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  • Cadillac Master
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You can replace battery with out effects.first turn off radio.before removing negative battery cable.when you install new battery, when you start the engine let it idle until get operating temperature.the computer will have to relearn it memory while engine idling operating temperature.open throttle a little see if engine hesitate. it will hesitate some, when you can accelerate with out hesitation,engine tps sensor has relearned it position.if idle speed stable engine dont run rough and stall out in drive your pcm has relearned itself where you can drive it.

Posted on Apr 03, 2011

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Posted on Jan 02, 2017

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