Question about 1994 GMC Sierra

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Ctsy fuse k1500 1993 Chevrolet why is this fuse draing the battery?

The ctsy fuse is draining the battery down on my truck. Why and How do I fix it?

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Posted on Jan 02, 2017

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SOURCE: GMC Sierra 1994 The ctsy fuse .

Hi; I believe the cigar lighter is on that fuse and that was a problem on these vehicles.

Posted on Jun 16, 2009

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SOURCE: electrical draw CTSY FUSE

I wonder if the buzzing is coming from the key switch ? (ignition ) . CTSY is always HOT ! you need a wire diagram to see where CTSY wires travel to & from to isolate this draw . I found that the CTSY 20amp fuse is also wired to the parking lights 20A fuse @ fuse block . start there, check all wires, grounds to parking lamps, and switch, it might be your headlight switch thats causing your problem ! replace it and see what happens !

Posted on Mar 24, 2013

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1 Answer

Where is the fuse for the sunroof on a 2002 Tahoe?


Ignition power comes from the 25A PWR WDO circuit breaker in the right I/P fuse block. The 15A CTSY LP FUSE in the underhood fuse block is the source of battery power.

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1 Answer

Electrical draw CTSY FUSE


I wonder if the buzzing is coming from the key switch ? (ignition ) . CTSY is always HOT ! you need a wire diagram to see where CTSY wires travel to & from to isolate this draw . I found that the CTSY 20amp fuse is also wired to the parking lights 20A fuse @ fuse block . start there, check all wires, grounds to parking lamps, and switch, it might be your headlight switch thats causing your problem ! replace it and see what happens !

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'93 buick century battery drain


unhook hot wire to alt at night if batt is up the next morning it is the alt

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99 malibu inop radio fix


Stock radios have 2 fuses that run them.

Fuse 1 is usually labeled as Radio in the fuse box.

The 2nd fuse shares circuits with other devices that are powered straight off of the battery, so look and see if your dome light works, and your cigarette lighter. If either of those aren't working, check the fuse for that item. Cigarette lighters are usually listed as Cigar in the fuse box, and dome light is usually CTSY or Courtesy.

Jun 05, 2012 | Cars & Trucks

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

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

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Wiring Diagram for 1996 Buick Century


Completely remove the dome lite positive wire from the dome lite. If that doesn't fix it, then remove the door lock harness from the back of the door lock switch. Etc, etc. It will eventually indicate which is the problem by the process of elimination. I'd try that method. Eliminate each of the remaining items, until the drain stops. Garcuda

Apr 14, 2010 | 1996 Buick Century

3 Answers

Fuse labled ctsy what does it service


Hello swatem1: My name is Roger and I will help. You did not specify a specific year car you were looking for. This is for a 1988 thru 1991. They do change things from time to time. The ctsy fuse carries power for the inside lights,power antenna,automatic safety belts (1991) and the warning and alarms (1991). Should you need more specific to d different year please just ask. Please rate the answer. This way I know it was helpful. Thank You for using Fix Ya. Roger

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01 Suburban battery draining


take it to an autosparky ......They will check to see if there is a drain on the battery.
cheapest and fastest option.

Jun 26, 2009 | 2001 Chevrolet Suburban

1 Answer

GMC Sierra 1994 The ctsy fuse .


Hi; I believe the cigar lighter is on that fuse and that was a problem on these vehicles.

Jun 16, 2009 | 1994 GMC Sierra

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