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2001 Cadillac DES Electrical Problems?

Tiny
GIZMORPH
  • MEMBER
  • 2001 CADILLAC DEVILLE DTS
  • V8
  • FWD
  • AUTOMATIC
  • 119,000 MILES
2001 Cadillac DTS DES with 119,000 miles
v8 4.6 liter Northstar Automatic Front Wheel Drive
2001 Cadillac DTS DES

I have a 2001 Cadillac DES. I was driving on the highway and the headlamps began to flicker on and off, same thing with dash lamps and warning lights, electronic speedometer went crazy. Battery said low volts. I got home and turned the car off and went to re-start it and it would just click. I took the battery and had it tested. Tested good. I noticed when I turned the key off the fuel pump would continue running. Unhooked battery cables then re-hooked them and the pump was off, I turned the key over and off again and pump did same thing. Possible Ignition problem? Any help is greatly appreciated.

Additional info: I tried another battery and now it is saying to have the anti-theft system checked.
Thank you,
Nicole
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Friday, March 4th, 2011 AT 11:48 AM

2 Replies

Tiny
FACTORYJACK
  • MECHANIC
  • 4,159 POSTS
Is the charging system functioning, or is it discharging until the voltage is low enough to cause a multitude of faults?
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Saturday, March 5th, 2011 AT 3:54 AM
Tiny
CADIEMAN
  • MECHANIC
  • 3,544 POSTS
Sounds like a loose ground and u set of the alarm. Cycle the key in the key in l/f door will cansel alarm.
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Saturday, March 5th, 2011 AT 4:54 PM

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