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Beeping for no reason and alarm going off

Tiny
JOANNSFORD
  • MEMBER
  • 2002 FORD EXPLORER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 130,000 MILES
Hi, my truck has recently begun beeping for apparently no reason. The door ajar light goes on, the check engine light goes on and off. It makes lots of beeping sounds. Last night the horn alarm was going off after I parked the truck, turned it off and locked it. I would turn it off with the remote, but a few minuets later it would start again.
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Thursday, July 23rd, 2009 AT 4:55 PM

11 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Check to make sure all grounds are clean and tight, including the one on the engine block, and body ground straps. If they appear good, the body control module (BCM) could be causing it a CAN scan will help us tell for sure check out this video will show you how.

https://youtu.be/InIlnsjOVFA

Please run down this guide and report back. Let me know what you find.

Joe
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Thursday, July 23rd, 2009 AT 9:17 PM
Tiny
LAWYER_L
  • MEMBER
  • 1 POST
  • 1999 FORD EXPLORER
  • 187,000 MILES
I have a 1999 ford explorer it beeps the first minute of the car being on and the longer I drive it it just randomly again start beeping for a minute or so. I also was wondering what could be wrong, my heat only works and blows when I'm driving atleast 65mph and it still doen't always work then it varies.
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Sunday, October 11th, 2020 AT 1:08 PM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Suspect seat belt buckle
best to check for BCM codes
as for the heat if its blowing cold air check thermostat and coolant suspect clogged heater core
if no air at all
suspect and check
blower motor and or blower motor speed resister
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Sunday, October 11th, 2020 AT 1:08 PM (Merged)
Tiny
NORTHWESTCHILLN
  • MEMBER
  • 1 POST
  • 1999 FORD EXPLORER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 179,000 MILES
When I crank my car it chimes which is normal, its sound slike the same chime as when you have the door ajar but theres no doors open and its doing it like every 25 minutes theres no lights on but the abs light also the dome light is weird you have to putthe roller switch it in a certian spot to make it go off. And the outside temp stays stuck on 40 degrees. Could this all be linked together and what could the problem br? Thanks alot !
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Sunday, October 11th, 2020 AT 1:08 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
That is a good question. I would recommend first checking for bad or loose body ground straps. If you can't find anything wrong there, have the body control module (BCM) tested.
Let me know what you find.

Joe
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Sunday, October 11th, 2020 AT 1:08 PM (Merged)
Tiny
TINA WILBERT
  • MEMBER
  • 1 POST
  • 1998 FORD EXPLORER
  • 2.2L
  • V6
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
What would cause the ignition to ding without a key in the ignition like it would if you left the keys in the ignition? Occurs when you open drivers door.
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Sunday, October 11th, 2020 AT 1:09 PM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
Hello,

Inside the key tumbler there is a contact that detects the key's presents. It sounds like this contact is shorted causing the GEM to think the key is inserted.

Please let us know what happens.

Best, Ken
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Sunday, October 11th, 2020 AT 1:09 PM (Merged)
Tiny
MIMICASE
  • MEMBER
  • 2 POSTS
  • 1997 FORD EXPLORER
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 179,000 MILES
I keep hearing a beeping noise like a battery runniing low on a cell phone or electronic device and I cannot fiugure out were is comming from. Can any one help, please.
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Sunday, October 11th, 2020 AT 1:09 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
That is a good one. Does it happen at any specific time?
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Sunday, October 11th, 2020 AT 1:09 PM (Merged)
Tiny
MIMICASE
  • MEMBER
  • 2 POSTS
No, most of the time it happens everytiime I start the engine. And it is located on the passenger side of the c=vechile side of the dash. Some days I don't hear it at all but if I drive through rough roads or areas which is often here I hear it often.
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Sunday, October 11th, 2020 AT 1:09 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
The only thing I can think of is a relay, or something is lose and making that noise.
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Sunday, October 11th, 2020 AT 1:09 PM (Merged)

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