Question about 2003 Cadillac CTS

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2003 Cadillac CTS power seats and trunk release are not working. What is cause and how can it be fixed? Fuses have been checked and none were found to be a problem. Could it be a regulator?

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6ya6ya
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Posted on Jan 02, 2017

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  • 239 Answers

SOURCE: 1996 cadillac deville

there is a fuse master center under the hood and one under the dashboard check there and see if that help you out..

Posted on Jun 17, 2008

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  • 1 Answer

SOURCE: trunk release and gas release will not work

did you hit the valet button?

Posted on Jan 26, 2009

  • 5 Answers

SOURCE: 2003 cadillac cts power seats wont work

Hello,
I would first check your owners manual to find where the fuses are and check them to see which one applies to the seats and see if this fuse is bad?? If so go to auto zone and get a replacement. Sometimes there are extra fuses in the fuse box saving you a trip to the auto parts store. If this does not solve the problem then we go to step two. One bridge at a time

Posted on Sep 12, 2009

nors2227
  • 1 Answer

SOURCE: I have a 2003 Cadillac CTS NONE OF MY WINDOWS WANT

look in fuse panel find window relay and or fuse replace. then disconect battery for 30 secs to reset computer.

Posted on Apr 03, 2012

rglock29
  • 1 Answer

SOURCE: 2005 Cadillac STS driver power window switch, mirror, and trunk release

I have the same car and had the same problem. You have to replace the master switch on the drivers side door. It's about 100$ new or 20$ at a junk yard. It's all connected so that's why your truck button won't work. Also your remote start shouldn't work. At least mine didn't. Hope this helps

Posted on Mar 29, 2013

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2 Answers

2008 Cadillac CTS push button to open trunk sometimes works


Do you know anything about automotive electronic's ? The trunk release is controlled by electronic control modules . Having the vehicle check for DTC'S - diagnostic trouble code's should be the first step in the diagnostic procedure . Then reading how it work's !
Factory service repair info.
Rear Compartment Lid Release System Components
• Body control module (BCM)
• Remote control door lock receiver
• Interior rear compartment lid release switch
• Exterior rear compartment lid release switch
• Rear compartment lid release actuator
• Trunk release relay

Rear Compartment Lid Release Operation
The interior rear compartment lid release switch receives a signal from the driver door switch assembly (DDSA). When the interior rear compartment lid release switch is activated, the signal circuit is pulled to ground. The DDSA interprets this and sends a GMLAN serial data message to the body control module (BCM) requesting the rear compartment lid be released. The BCM responds by applying battery voltage to the trunk release relay control circuit which energizes the TRUNK RELES relay. The trunk release relay is supplied with battery voltage at all times. With the relay coil energized, the relay switch contacts close allowing battery voltage to flow to the rear compartment lid release actuator causing the rear compartment lid to release. The rear compartment lid release actuator is permanently grounded at G402.

The trunk release relay is located in the rear fuse box located under the back seat.

Dec 23, 2017 | Cadillac Cars & Trucks

1 Answer

2007 Cadillac CTS driver power seat stopped working. All the fuses marked seat are good


Check connection under seat. Maybe it came loose or the switch went bad

Aug 04, 2016 | Cadillac Cars & Trucks

2 Answers

Where is the key hole in the trunk for a cadillac cts 2003


On page 2-16 in the owners manual there is no mention of using a key to access the trunk. The latch and lock are electric.
You can access the trunk space thru the back seat in an emergency.

Apr 08, 2016 | Cadillac CTS Cars & Trucks

1 Answer

Trunk release not working


Did you check the trunk relese fuse 15amp location rear fuse box . How did you check fuse's an relay's ? Did you use a DMM - digital multi-meter ? Did you check the elcetrical circuit ? Do you know how a relay work's ? The BCM - body control module controls the trunk release relay . Check for B+ voltage at the relay .
VEHICLE RELAYS Operation Diagnosis

Nov 21, 2017 | Cadillac CTS Cars & Trucks

1 Answer

Trunk clicks but does not open and I have a box blocking the rear seat entry


Push down on the lid while you press the release, see if that releases it.

Sep 20, 2012 | 2008 Cadillac Cts

1 Answer

I have a 2003 Cadillac CTS NONE OF MY WINDOWS WANT ROLL DOWN OR UP NOT WILL THE TRUNK OPEN WITH THE RELEASE BUTTON


look in fuse panel find window relay and or fuse replace. then disconect battery for 30 secs to reset computer.

Apr 03, 2012 | 2003 Cadillac CTS

1 Answer

Hello! I have a 2005 Cadillac CTS-V Both the right and left brake lights stopped working at once. The center brake light on the trunk still works. I was googling to see how to change the bulbs but it...


I assume the solution is the same in a CTS as a CTS-V. Remove the plastic molding facing the rear. There are four plastic screws, Unscrew and lift the spare tire cover. Unscrew plastic screws on carpet covering quarter panels pull back for room to work. Each light assembly has two nuts, remove these and assembly will slide out for easy replacement. Since both lights stopped at once, the fuse may be the issue. The fuse box is under the rear seat cushion, behind the driver. Pull the seat up and forward. Pull levers out on each side of fuse box cover and lift. The diagram is inside the fuse box cover. It'll take a 15V. Note: Please take care in replacing and seat and proper seat belt placement. While you're in the backseat, check all the fuses, there's a second fusebox on the passenger side. Also, check floor behind driver's seat for wetness and water. That could cause a short as well. Good luck!

Nov 14, 2010 | 2005 Cadillac CTS

1 Answer

2003 cadillac cts power seats wont work


Hello,
I would first check your owners manual to find where the fuses are and check them to see which one applies to the seats and see if this fuse is bad?? If so go to auto zone and get a replacement. Sometimes there are extra fuses in the fuse box saving you a trip to the auto parts store. If this does not solve the problem then we go to step two. One bridge at a time

Sep 12, 2009 | 2003 Cadillac CTS

2 Answers

2004 cts cadillac trunk will not open with remote or button on drivers door.


Check fuse.. Test for power to trunk release solenoid. When door button, or remote trunk release button is pushed. If there is power ( use a 12 volt test light ) most probably faulty release . Hope this helps

Apr 23, 2009 | 2003 Cadillac CTS

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