Lighting/ electrical problem

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Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, Lighting/ electrical problem in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; I have a 2004 cts and the lights flicker very quickly on occasion usually only at idle. When i turn ...
  1. #1
    AlpineCTS is offline Cadillac Owners Member
    Join Date
    Apr 2013

    Lighting/ electrical problem

    I have a 2004 cts and the lights flicker very quickly on occasion usually only at idle. When i turn of the car and leave the lights on the flickerin stops. I thought this could be a problem with to much draw on the main battery for my apline 10in type-r which is wired to a 500watt mono amp. However i installed a second battery (a dry cell deep cycle audio system battery) in the truck. And i noticed the same flickering today. Anyone else think this may be my alternator like i am thinking? I got a voltimeter out before i did second battery and it was 14.3 at idle and with sub blasted it would fluctuate between 14.0 and 14.6. Which since the voltage stayed above 14 figured my alternator was doing ok i was just curious of any other things it could be. After i got second battery in at idle the voltage on main battery was up to 14.7 i didnt get to test anymore than that.

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  3. #2
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
    Automobile(s): 2002.5 F55 STS - 65500 miles, 2014 Explorer XLT FWD
    Join Date
    Feb 2006
    MD Eastern Shore, Kent Island

    Re: Lighting/ electrical problem

    This has nothing to do with warranty, extended warranty, or recall problems.

    Moved to the proper CTS forums.

  4. #3
    Acdcpsp is offline Cadillac Owners Fanatic
    Automobile(s): 2008 CTS4 3.6 LY7
    Join Date
    Feb 2013

    Re: Lighting/ electrical problem

    Try putting a Capacitor in. I have a 1000 watt amp with two ten inch JL Audio's and I barley get the lights dimmed.

  5. #4
    Kingoftypos is offline Cadillac Owners Master
    Automobile(s): 06 CTS Sport/Luxury package
    Join Date
    Apr 2009
    Ledyard, CT

    Re: Lighting/ electrical problem

    It could simply be that the HID bulbs are old, they are 9 to 10 years old if they haven't been changed. A fast flicker is classic sign of age.


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