Question about 2005 Chevrolet Colorado
it is your door switch.you need to replace it.since the door is open as far as the computer is concerned,it will set off the alarm.
Posted on Jun 12, 2009
Had a similar problem with my Saturn. Door chime going all the time, the seat belts going up - down - up for no apparent reason.
Turned out to be the switch in the door jamb had become unseated. As it randomly made and broke contact, the cars computer thought the doors were opening and closing, then acted accordingly.
I remounted it with the help of a hot glue gun (plastic mount).
Hope this info helps with your problem.
Posted on Aug 19, 2009
I had the same problem as this...
When you open or close your door there is lever that sits just below the the door latch that is attached to the frame of your car by a single screw.
It is a black plastic L shaped bit of plastics that slides on its own guide. It has obviously started to malfunction over time.
To double check this:
Turn the car lights on
Open your door
Locate the black L shaped plastic level.
Wriggle it around sliding back and forth - if it starts to work when you are applying pressure onto it it looks like it has broken.
Go to your local wreckers and ask them for a replacement part (it cost me $2.00 AUD to get mine)
To take the part off all you need to do is push the level back as far as it will go and you will see a phillips heads screw holding it in place.
Undo the screw and detach the part (there will be a wire attached to the back of the metal guide)
Unplug the wire and throw the part into the bin.
Attach the wire to the back of the new part and screw the new one into place.
All should be working fine now.
Posted on Mar 09, 2010
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Posted on Jan 02, 2017
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Go sit in your truck and close all the doors. Light stays on right? Put your key in the ignition. Does the chime start going off when you put the key in? If so, door switch or the GEM thinks a door is open.
To find out which door... Leave the key in the ingntion. Turn to the on position. Even with doors closed, chime sounds once after a few seconds and door ajar light comes on and stays on right? Open each door one by one. The chime should sound each time you open a door. When you find the door that doesn't make the chime sound when you open it, that is the problem. (Don't forget to try the rear hatch and the hatch glass also!) To determine if the switch is bad or if the GEM is having a problem thinking the door is open, just unplug the suspected switch, close all the doors, and see if the problem stops. (don't forget to wait a second to give the lights time to go off) If unplugging the switch solves it, the replace it. If it doesn't, Ford can check your GEM to see if it is the problem.
I hope this helps
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