Question about 2002 Cadillac Deville

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2002 Cadillac will not keep charge have changed the battery out two times the raiod went out all you can hear is a thump when the radio comes on the lights on the inside of the car will not turn on when doors are open

Posted by Anonymous on

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 54 Answers

SOURCE: Burning rubber smell inside car-2003 CTS Cadillac

Diagnosing this will be subject to a process of elimination. It could be the radio, blower motor or any other accessory particularly ones with moving parts; Try switching those off and try to note when this problem occurs and what is on/whatyou are doing. Something is getting hot causing the smell so it will be a situation where the accessory will have to run a while before doing it. It is a possibility that there is an electical curcuit overheating, but less likely. Lets rule out accessories first and give us an update. GL

Posted on Feb 04, 2009

  • 221 Answers

SOURCE: Cadillac Deville Electrical problem

You could try checking the fuses to see if any are blown, if the fuses are all good then it's possible the door switch is bad or not making a connection from dirt or debris, the door switch is generally located insdie the door at the hinge or its a push button switch, when the door closes it pushes the switch in, the switch may also be jammed in keeping your lights from turning on.

Posted on Mar 11, 2009

cadman000
  • 607 Answers

SOURCE: 98 cadillac deville battery wont hold a charge

sounds like a 12V drain on the system, like a trunk or glove box light that won't shut off.> Could be many. many other reasons why. The way I would find the draining circuit would be to remove the neg cable of the battery. I then would connect a 12V test light between the neg battery TERMINAL and the neg battery CABLE. With a 12V drain the light will shine. I would install into the light a 9V battery powered recepticle to hold computer and radio station memory. Then I remove fuses 1 at a time, then reinstall, at the same time looking for the 12V light to go out. Hope this helps.

Posted on Apr 05, 2009

iadame
  • 676 Answers

SOURCE: 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.

Posted on May 27, 2009

  • 1 Answer

SOURCE: cadillac 2004 cts, wont start

i had a 2003 ctc that did the same thing, it wouldn't start or would make a clicking sound and about 1 mth after the problem started aND mechanics could not find a problem my car caught on fire and burned completely from something under the right side of the hood. i had just parked the car and got out, it happened really fast. the fire chief said the cause was unknown????

now i have a 2004 cts and i'm having the same problem!!!!!!!!!!!!!!! has anyone else had this happen???? please be cautious if your cts is doing this, during the fire my doors locked and had to be pried into by fire chief.

Posted on Aug 22, 2009

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2 Answers

What is wrong when the battery light comes on while driving?


The battery light comes on when there is an issue with the charging system. Likely your alternator is no longer able to keep up wth the accessories that where on and the charging voltage was dropping to about battery voltage. This is pretty easy to check with a voltmeter. Check voltage at the battery terminals. With the engine off you should see around 12.4 volts. With the ingle running and all the accessories turned on you should see more than 13.5 volts and closer or more than 14 volts would be ideal. If you don't have that than it's probably time for a new alternator.

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No. The battery must be charged, or they need to jump it from another vehicle.

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Radio does not come on after replacing dead battery, fuses are OK.


If you have a theft deterrent system, then when you replaced your battery, you left it disconnected for too long. The radio has a chip that contains all the instructions to operate the radio and needs constant power on it. If some one steals the radio, then the chip looses all its instructions and the radio is no good. The radio normally will keep it's memory for about 30 minutes due to a charged capacitor holding the charge, but a capacitor leaks voltage over time and the radio quits. Normally you do not leave the battery disconnected for longer than 30 min., but changing batteries, what you do is put a nine volt battery across the pos. and neg. leads to hold the charge. The only thing you can do is take the car back to a dealer and have them re-program the radio. The dealer is the only one that is suppose to have the equipment to do this. "Theft deterrent"?

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you want me to post a free solution yet want to charge for info I requested for free?

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sounds like a 12V drain on the system, like a trunk or glove box light that won't shut off.> Could be many. many other reasons why. The way I would find the draining circuit would be to remove the neg cable of the battery. I then would connect a 12V test light between the neg battery TERMINAL and the neg battery CABLE. With a 12V drain the light will shine. I would install into the light a 9V battery powered recepticle to hold computer and radio station memory. Then I remove fuses 1 at a time, then reinstall, at the same time looking for the 12V light to go out. Hope this helps.

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2002 Mercury Marquis Heat only comes out vents


There could be a thermal switch for blower speeds and temp. Since you needed to replace the battery, the thermal switch could have run down the battery. When you restored a dead battery with a fully charged battery a resistor blew. There is a cover underneath the glove box that can be removed and the glovebox lid can easily be unclipped to hang out of the way. Just look at the sides of the glovebox and you will see brackets which can be pinched to let the lid hang down. Unplug the switch and look for melted parts.

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If the battery went dead and you charged it, you need to reboot the system. It has lost them function of radio.
Disconnect both side of the battery and with the battery disconnected, crank the car 3-4 times (This just discharges the computers). Then reconnect the battery cables (pos + first) and you should have a working radio again.

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