Question about Cadillac CTS

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2005 Cadillac cts: brand new battery, wake up to a very low battery every morning. Turn everything off, and still the battery is at 11.2 volts every morning with the battery on. The "service charging station" message comes on every time I start the car, regardless of the battery voltage. Help, any ideas?

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  • Cadillac Master
  • 16,026 Answers

You need to test it for what is called parasitic drain. The way that you test it is to get a good amp meter that measures dc amps at a rate of higher than one amp. Disconnect one battey cable and hook one meter lead to it and the other meter lead to the battery. Make sure that the key is off and no doors are open when you do this. There is a great article on this process here: http://www.popularmechanics.com/cars/how-to/repair/how-to-stop-car-battery-drains

Posted on Feb 10, 2014

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SOURCE: 2003 Cadillac cts battery up/won't start

Its the battery. The colder it gets the less cranking amps it has. Keep the car in garage or get a battery wrap warmer. Also try to get a battery with the most cranking amps for the size battery it will take.

Posted on Jan 18, 2009

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SOURCE: 1983 cadillac fleetwood brougham 4.1 liter battery not charging

check the alternator fuse that can be a fuse link by the battery pole,check alternator voltage on the alternator red wire or connector,it should the same as on the battery ,check ground wires for loose intermitent contact

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SOURCE: MX5 not charging battery. If i disconnect the

usually cars stall when running and the batterie is removed, indicating a bad alternator.
perhaps your batterie is bad

Posted on Sep 19, 2009

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SOURCE: cadillac cts cranks but won't start

My 2003 CTS would not start on the first, second or third try after filling the gas tank. Finally after several months of this occuring every two weeks a check engine light came on. It was the evac purge valve. Tom

Posted on Jan 08, 2010

  • 1 Answer

SOURCE: no sound from radio / now car totally dead

Its you antenna module above your headliner. It controlls your remote for keyless entry as well as your am/fm reception via an amplifier. GM part number is 12233252 for updated and revised version around $100 bucks online.

Posted on Feb 05, 2010

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2005 Cadillac cts: brand new battery, wake up to a very low battery every morning. Turn everything off, and still the battery is at 11.2 volts every morning with the battery on. The "service charging...


Hi
Disconnect battery side and put ampermeter in the middle for checking the use from the car ampers
lock the car by the remote for and wait for checking and see how much amp the car still use
after this if its use more than 1 amper
you must check the user that still work in the car

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