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WORKED ON MY 1997 CADILLAC DEVILLE LEFT DOORS OPEN NOW FLAT DEAD! EVEN AFTER CHARGING BATTERY

WORKING ON MY CAR COMPLETED RADIO INSTALLATION CHECKED ALL WORKED FINE TURNED BACK OFF THEN STARTED TO RUN AMP WIRES N STUFF WITH DOORS OPEN AWHILE WENT DEAD FIGURED THATS WHY I WAS GETTING NO POWER BUT TOOK IT TO CHARGE PUT BACK IN AND STILL NOTHING ?? BAD BATTERY CAN SHOW CHARGE BUT GIVE NO POWER ? OR IS IT SOMETHIGN ELSE IT WAS PERFECT ONLY HAS 59,400 MILES I DONT KNOW WHATS WRONG

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Power or grounding problem . Do you know how to use a power distribution diagram to test electrical flow in the vehicle . How to use a DVOM - digital volt ohm meter ? Free wiring diagrams here http://www.bbbind.com/free_tsb.html
Basic Electricity for Service Techs Ohm law Current Flow Opens Shorts
How to Use Multimeter to Troubleshoot Common Problems
check main powers , do you know were inside fuse boxes are ?right hand an left hand . You may have blown a main fuse or fusible link et..... If I had to guess you probably blew BATT 1 or BATT 2 fuse's in the right hand fuse box .

Posted on Apr 19, 2017

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Posted on Jan 02, 2017

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2 Answers

Something is draining my battery on my 1998 Cadillac DeVille


I suspect parasitic draw. All vehicles draw some power from the batteries when the car is shut off. Certain accessories such as clocks, radios remote door openers and alarms always need power. The normal power used is called parasitic draw.

It is always a very low draw so it doesn't run the battery down. If you install accessories like shortwave radios or plug things like inverters and portable refrigerators into the accessory socket and operate them too long without the engine running you can drain your batteries to the point where the engine won't start. If there is an electrical short in the vehicle or a malfunctioning accessory it could be drawing much more than its normal load causing a drain on the batteries. If you leave your door open and the inside lights stay on all night you could drain the battery down till the car won't start.

Here's also a good resource for your car specifically on narrowing down the cause of the drain.

Oct 23, 2012 | 1998 Cadillac DeVille

1 Answer

Fix 1997 cadillac deville concours charging system


Charging voltage should be around 14 volts or more for battery to be properly charged. If significantly below that the alternator is not working properly.

Sep 05, 2017 | 1997 Cadillac DeVille

1 Answer

My 1997 cadillac devilles new battery sometimes goes dead while the car is running. what could this be


Most likely a bad alternator. Have a charging system diagnostic performed on the car. Some parts stores will do this free of charge.

Mar 08, 2011 | 1997 Cadillac DeVille

1 Answer

My engine won"t turn over on my 97 cadillac


It could be the starter. It could be a bad battery cable connection. Have you tried jump starting the engine. If it starts, then most likely it's to do with the battery or charging system.

Feb 25, 2011 | 1997 Cadillac DeVille

1 Answer

The car wont start but the power (lights, radio, dash) all works. Also 7% oil ife left..could it be the oil level it to low?


Not likely an oil related problem. More likely battery/charging system problem. Have your battery "load tested" and alternator checked for adequate output.

Jan 05, 2011 | 1997 Cadillac DeVille

1 Answer

Dashlight Stays on and Battery Runs Down Completely After Shutoff


You have a slow short somewhere in the vehicle. Have you had the alternator checked. While the alternator may work fine while running, it is possible that the alternator has "sticking diodes" which will cause the alternator to "stay on" and drain the battery.

Jun 03, 2009 | 2002 Cadillac Deville

1 Answer

Cadillac Seville with new battery won't start, won't even fire up!!


Could be your alternator. If you can get it started again. Try to have the alternator checked out.

May 27, 2009 | 1997 Cadillac DeVille

1 Answer

My cadillac's electric system is dead


Hi, this sounds like a dead battery,you can try jump the battery with another car, or try another battery,

Jan 03, 2009 | 2004 Cadillac Deville

2 Answers

Radio/cd player stopped working after battery replaced


Had battery replaced on 2005 DTS and afterward the radio/NAV/On-Star would not work.(Totally dead) The dealer who installed could not locate problem. (No GM dealer in Amador County, CA). I read several forums citing this/similar problems. I checked the three fuses labelled "radio, audio, NAV" by pulling, checking and reinstalling (all three were good). When I then restarted the car, everything was once again working! Poor connection? Corroded contacts? Some mysterious computer glitch? Who knows?

Oct 11, 2008 | 2004 Cadillac Deville

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