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Battery Access


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Hello Fellow Caddy Drivers,

Got a electrical problem here. For the last few days, my '02 STS has been hard to start. When I turn the key, the engine will not crank over. The electrical system will come on, the dash will light up, and so on, but no cranking. If I turn the key a few times it will crank and start, eventually. I can hear a clicking noise when it won't crank, coming from under the back seat where the battery supposedly is.

I want to start a little troubleshooting, starting by making sure the battery terminals are tight. Now comes to the first stumbling block - how do I get the back seat cushion removed so I can access all this stuff?

Also, has anyone else had this issue? If this fails to rectify the problem, what else should I take a look at before I go to the dealer?


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I thought it pulls straight up on the cars that have the battery in the rear.

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Just pull straight up on the seat cushion. It will come loose pretty easily. Don't forget to unplug the heated seat connector on the passenger side.

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