Question about 2007 Cadillac DTS Sedan

2 Answers

Battery Drain From Unknown Source

Slow crank more often than not. Battery is draining. Nothing connected anywhere. No courtesy lights stay on. Voltage indicates >13.5 V when engine is running. Already replaced 3 year old battery that really wasn't probably the issue, but at the store it had only 70% charge. New battery takes a 10A charge for a long time using automatic charger, so it's draining down too.

Posted by on

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Cadillac Master
  • 22,095 Answers

Change the alternator is the next step here their are no user servicable parts here ,most likely cause is a diode down causing the alternator to discharge the battery ,disconnect the alternator on the large terminal and see if the battery drains

Posted on Nov 21, 2013

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 129 Answers

If the diodes are bad in your altenator this will happen .even though it still charges . you can take it to a parts store to check this for free .unless your mechanic is a buddy and will do you the favour .

Posted on Nov 21, 2013

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Pyrhyc
  • 2028 Answers

SOURCE: car isn't starting all the

Check if this model has a start injector on it. A start injector is a small injector located on the throttle body that basically primes the system for starting. If you have one and it has malfunctioned, this could be your problem.

Posted on Jul 24, 2008

goalie39
  • 469 Answers

SOURCE: Drained battery

It's a small draw if it takes that long, I would start by checking the under hood lamp, they have a mercury switch which if it is not on level ground have tendency to stay on, the switches also plain and simple fail and keep the light on. Same holds true if it has a trunk lamp, and the third is the glove box lamp. The best was to check these of course is in the dark.
Typically you would remove one of the battery cables use an Ammeter in line and this would give you an amp reading if there is a draw an how much, once you have this, you can pull fuses until the draw stops. which ever fuse or disconnected item will now be exposed.

Posted on Apr 15, 2009

  • 60 Answers

SOURCE: installed new alternator and car battery still will not charge.

did you unhook the battery prior to installing the alternator

Posted on Jul 12, 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

  • 161 Answers

SOURCE: 1994 Cadillac Seville is draining the battery.

Check the cells on the battery, if they are dry or not full of water then they can go bad. That would incorporate the battery to keep dying. When you start the car it feeds off the alternator, and then starts to die.
Check your charging system, test the battery.

Posted on Sep 26, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Battery drain


Someone will need to check the circuits in the car for a voltage drain.
A mechanic would pull the negative battery cable and use a test light to check for a power draw on each circuit. Could be a relay or other electrical component with a short to ground. Could also be a small courtesy light left on.

Jan 17, 2013 | 2001 Buick LeSabre

1 Answer

Courtesy lights stay on after the door has been closed on my 98 LeSabre. What is the cause of that and can I remove the fuse to get the lights off so the battery isn't drained?


Hi Dennis,

Your courtesy lights are controlled by your Body Control Module (BCM). Normal operation is for the courtesy lights to stay on for 2-3 minutes after the door is closed, then turn off.If they stay on longer than about 3 minutes, then there are several possible causes:

1. You may have the "courtesy lamp override switch" in the overide position in the dimmer control on the dash.

2. you may have a door that is not completely closed. You need to check ALL of them.

3. You could have a defective door switch or dimmer control switch

4. you could have a short to ground in one of the door control switch circuits, causing the BCM to "think" that there is a door open.

The CORRECT way to fix this would be to scan your BCM for fault codes and also read the BCM data to find out if it is showing one of the doors as being open when they clearly are not, so you will know which door is causing the problem.

Removing the courtesy lamp fuse will NOT completely fix the battery drain problem if these circuits are shorted or malfunctioning because the BCM will STILL be "trying" to turn these lights on and this will also cause an excessive draw on your battery. However, removing the 15 Amp fuse marked "CTSY LMP/MIRROR" located in the instrument panel fuse block will get the lights turned off and at least slow down how fast your battery is draining.

Oct 25, 2011 | 1998 Buick LeSabre

1 Answer

My 84 nissan pick up 's battery is going dead overnight and the battery is brand new and the regulator and alternator are fine.....any suggestions?


FIRST THING, START THE TRUCK, PLACE A VOLTMETER ON THE BATTERY. VOLTAGE SHOULD READ BETWEEN 13.90 & 14.80. IF THAT IS OK, THERE MUST BE A BATTERY DRAIN. TO CHECK FOR A BATTERY DRAIN, TURN OFF ALL SWITCHES, CLOSE GLOVE COMPARTMENT, MAKE SURE THE LIGHT IN THERE IS GOING OUT. OPEN THE HOOD, CLOSE ALL OF THE DOORS, MAKE SURE ALL OF THE COURTESY LIGHTS ARE GOING OUT.DISCONNECT THE NEG. BATTERY CABLE. CONNECT ONE END OF A 12 VOLT TEST LIGHT TO THE NEG. POST OF THE BATTERY. FASTEN THE OTHER END TO A METAL PART OF THE MOTOR. IF THE LIGHT COMES ON THERE IS A BATTERY DRAIN. NO LIGHT, NO DRAIN. IF THE LIGHT IS ON, YOU NEED TO UNPLUG THE FUSIBLE LINKS FROM THE POSITIVE CABLE ONE AT A TIME TO ISOLATE THE DRAIN. ALSO, DISCONNECT THE ALTERNATOR, & SEE IF THE TEST LIGHT GOES OUT.BAD ALTERNATORS CAN CHARGE THE BATTERY WHEN RUNNING, & DRAIN THE BATTERY WHEN STOPPED.

Jan 28, 2011 | 1984 Nissan Pickup

2 Answers

My 2004 Toyota Matrix will not start, when I turn onver the ignisiton key, nothing happens. The light turns on, radio plays, horn ok and battery voltage is 12,6 volts DC


Do you hear a slight click coming from the engine area??? If not your starter selenoid is bad, and needs replacement. If you do hear a click but the engine is having trouble or slow very slow time turning, then it's your battery. If you hear your starter click, but no turn, then its your starter not turning over. If your instrument lights dim out by alot when trying to turn, then it still your battery which is drain. The battery doesn't completly need to be drain in order for your horn, lights to not work, It could be your battery simply drain and doesn't have enough cranking power to roll over the starter. But in this case issue description, It sounds like it is the starter. Could take it out and bring it to autozone and have them test it out.

Jan 23, 2011 | 2003 Toyota Matrix

2 Answers

My battery has been checked and is fine, but the battery will go dead within approximately 48 hours if the car is not started and run. I checked all of the draw from the battery on each fuse and the #9...


TO CHECK FOR A BATTERY DRAIN. TURN OFF EVERY SWITCH IN THE CAR. CLOSE THE GLOVE COMPARTMENT. MAKE SURE THE LITE IN THERE IS GOING OUT. OPEN THE HOOD CLOSE ALL OF THE DOORS. MAKE SURE ALL OF THE COURTESY LIGHTS ARE GOING OUT. DISCONNECT ANY UNDER HOOD LIGHTS. DISCONNECT NEG. BATTERY CABLE. USE A 12 VOLT TEST LIGHT, FASTEN ONE END TO THE NEGATIVE BATTERY TERMINAL, FASTEN THE OTHER END TO A METAL PART OF THE MOTOR. IF THE LIGHT COMES ON, THERE IS A BATTERY DRAIN. NO LIGHT, NO DRAIN. IF THE LIGHT IS ON, PULL EACH FUSE, BIG & SMALL, ONE AT A TIME, OUT OF THE FUSEBOX THAT IS NEAR THE BATTERY. WHICHEVER FUSE MAKES THE LIGHT GO OUT IS CAUSING THE DRAIN. IF THE LIGHT STAYS ON THROUGHOUT THE FUSE PULLING, DISCONNECT THE ALTERNATOR. IF THERE IS SOMETHING WRONG IN THE ALTERNATOR, IT CAN DRAIN THE BATTERY WHILE SITTING STILL, EVEN THOUGH IT IS CHARGING THE BATTERY WHILE YOU ARE DRIVING. GOOD LUCK

Jan 14, 2011 | 1993 Mercedes-Benz E-Class

1 Answer

Battery keeps draining, turned off radio, nothing plugged in. Gets worse in cold weather


INTERMITTENT BATTERY DRAINS ARE HARD TO FIND. TURN OFF ALL SWITCHES IN THE VEHICLE. MAKE SURE THE GLOVE COMPARTMENT LITE IS GOING OUT. OPEN THE HOOD. CLOSE ALL THE DOORS. MAKE SURE ALL OF THE COURTESY LITES ARE GOING OFF. DISABLE ANY UNDER THE HOOD LIGHTS. REMOVE THE NEGATIVE BATTERY CABLE. USE A 12 VOLT TEST LIGHT, FASTEN ONE END TO A GOOD GROUND, { METAL PART OF THE MOTOR} . FASTEN THE OTHER END TO THE NEGATIVE TERMINAL OF THE BATTERY. IF THE TEST LIGHT LIGHTS UP THERE IS A BATTERY DRAIN. IF NO LIGHT , NO DRAIN. IF THE LIGHT IS ON LOOK IN THE FUSE/RELAY BOX NEAR THE BATTERY. PULLOUT THE FUSES, LARGE & SMALL ONE AT A TIME, IF THE LIGHT STAYS ON PUT THE FUSE BACK IN TRY THE NEXT FUSE. WHEN THE LIGHT GOES OUT, THAT IS THE CIRCUIT CAUSING THE DRAIN. IF IT NEVER GOES OUT, DISCONNECT THE ALTERNATOR. IF THAT MAKES THE LIGHT GO OUT, THERE IS SOMETHING WRONG WITH THE ALTERNATOR. IF THE LIGHT IS NEVER ON, YOU MAY HAVE TO DO THIS ANOTHER DAY TO FIND THE DRAIN. ALSO HAVE THE BATTERY RECHECKED.

Jan 12, 2011 | Ford Escape Cars & Trucks

1 Answer

On my 94 jeep im having an electrical problem, something is killing my battery and i checked the alternator and my starter and i can not find the solution something is killing my battery rapidly please...


START THE VEHICLE, PUT A VOLTMETER ON THE BATTERY. THE VOLTAGE SHOULD READ 13.90 TO 14.80. IF THAT IS OK, THERE MAY BE A BATTERY DRAIN. TURN OFF EVERY SWITCH IN THE CAR.CLOSE ALL THE DOORS. MAKE SURE ALL THE COURTESY LIGHTS ARE GOING OUT. & THE GLOVE COMPARTMENT LIGHT. RAISE THE HOOD. DISABLE ANY UNDER HOOD LIGHTS. DISCONNECT THE NEG. CABLE FROM THE BATTERY. PUT A 12 VOLT TEST LIGHT, ONE END ON THE NEG BATTERY POST & THE OTHER END ON A GOOD GROUND { METAL }. IF THE LIGHT COMES ON THERE IS A BATTERY DRAIN. NO LIGHT , NO DRAIN. IF IT'S ON, ONE AT A TIME PULL THE FUSES OUT OF THE POWER DISTRIBUTION BOX. IF THE LIGHT STAYS LIT, PUT THE FUSE BACK. DO THIS WITH ALL THE FUSES BIG & SMALL. IF THE LIGHT STAYS LIT, DISCONNECT THE ALTERNATOR. THEY CAN CHARGE THE BATTERY WHILE RUNNING, & DRAIN WHEN STOPPED.

Jan 11, 2011 | 1994 Jeep Grand Cherokee

2 Answers

What is the CTSY Fuse? And why do I have a voltage drain in this circuit?


CTSY is the courtesy lamps, the lights that come on when you open the door. You have a drain because something on that circuit is not turning off or a wire may be rubbed bare. Start checking by removing the bulbs from the sockets to see if that kills the drain. If there is a light in the trunk or under the hood remove those too. This should stop the drain. Then replace them one at a time to see which one is the culprit. When you replace the hood and trunk ones make sure the lids are closed when you test. Otherwise you are looking for a chaffed wire somewhere. Hope this helps.

Sep 08, 2010 | Chevrolet Silverado 1500 Cars & Trucks

2 Answers

I have a brand new battery in the vehicle and it went dead in less than 2 weeks. Would the computer located in the fender well have anything to do with the battery being dead? I have had the alternator...


You need to check for something that is a constant drain on the battery.
Is the underhood light staying on?
Are the interior lights left on?
Is the glove box light staying on?
Has anything been added to the van recently like an alarm, radio, amplifier, etc?
Do you leave your GPS unit plugged in or cell phone charger plugged in?
I would start my search (since you have already had the alt output checked) looking for something that is draining the battery slowly.

Feb 23, 2010 | 1998 Chrysler Town & Country

1 Answer

Battery drain


There is a module called the delayed entry module, it keeps the courtesy lights on for about 30-40 seconds when the door is opened, by what you say that may not be the problem, without the load of the light bulbs the timer will not work in the module, this throws off many techs. Have you had the battery tested?? even if it is new it can have a problem, I put three new batteries from Kragen in my Corvette in 1 year, I also thought the system had a drain, but it was the battery every time, finally bought a Delco battery and never had an issue again.

Sep 21, 2008 | 1995 Oldsmobile Cutlass Ciera

Not finding what you are looking for?
2007 Cadillac DTS Sedan Logo

155 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cadillac Experts

yadayada
yadayada

Level 3 Expert

74945 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7697 Answers

Are you a Cadillac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...