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Premium Member
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1,998 Posts
Discussion Starter · #1 ·
What is this ? It has a really high pitched beep and sometimes beeps along with the other door ajar beeper. I can't tell if it's OEM or something a PO added. It needs to go it's annoying as hell. But I want to know what it's for before I get rid of it.

Automotive lighting Electrical wiring Gas Electrical supply Wire


Motor vehicle Automotive lighting Bumper Automotive exterior Gas
 

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Addicted to Junk
85 Bronco, 309ci I6 w/4bbl, np435, 4" lift, 37" Irok NDs, 4.56 w/ Detroit Locker and tru trac
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16,035 Posts
Aftermarket alarm? Looks like its been there for quite a while.
 

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Yo N,
92-96 has the warning chime/buzzer module and it produces a repetitive chime or steady buzzing sound for the following conditions:
  • Key-in-ignition warning with driver's door open.
  • Fasten safety belt warning.
  • Headlamp-on warning (available on some models).
  • White Motor vehicle Font Line Art



Rectangle Slope Font Parallel Symmetry
 

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Premium Member
1995 5.8, 2.5" Rough Country Lift, Extended RA's, 4.10's, 33" BFG's
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6,022 Posts
Thats the airbag module. If it beeps there is something wrong, it has a built in(soldered to board)fuse and it might be burnt.
 

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Premium Member
1995 5.8, 2.5" Rough Country Lift, Extended RA's, 4.10's, 33" BFG's
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6,022 Posts
You can pop the black cover off and check the fuse
 

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Premium Member
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1,998 Posts
Discussion Starter · #7 ·
You can pop the black cover off and check the fuse
Thanks I'll check that tomorrow. Tonight after I got back from visiting my mom at the hospital I worked on one of the other issues. 😬
 

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Premium Member
1995 5.8, 2.5" Rough Country Lift, Extended RA's, 4.10's, 33" BFG's
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6,022 Posts
It's toast... Not sure if I should eliminate the module or spend $90-$100 for a used one on Ebay? View attachment 184785
If you don't mind losing your airbag I guess you could eliminate it, I'm not sure if it will keep other stuff from working, your airbag light will constantly blink, if its not blinking now the bulb is probably burnt.
 

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Registered
'94 XLT; 5.8; E40D
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41 Posts
if you decide to replace, make sure you troubleshoot and fix the reason why the thermal fuse blew in the first place.

I did mine a few years ago and got a replacement airbag module from the junkyard.
I replaced my clock spring before installing the junkyard module.
I thought the bad clock spring was the only issue, because I was having some intermittent horn issues while turning.
unfortunately, a bad clock spring isn't the only thing that can cause the thermal fuse failure.
I burned the junkyard unit because I also had a crash sensor short to ground (there are a few other reasons that fuse will fail, but these were my issues).

another trip to the junkyard, and I replaced the crash sensor (at base of passenger side B-pillar) and a replacement for my replacement airbag module.

Just wanted to give my 2 cents.

Good luck
 

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Yo NASSTY,
WISHING your mom a speedy recovery!

"...The thermal fuse is controlled by the diagnostic monitor. The diagnostic monitor will blow the thermal fuse whenever a short on the deployment circuits occurs. The thermal fuse does not blow because of excessive current flowing through it. DO NOT attempt to jumper out the thermal fuse with a circuit breaker or any other type of fuse. WARNING: DO NOT INSTALL A NEW DIAGNOSTIC MONITOR UNTIL THE SHORT HAS BEEN LOCATED AND CORRECTED. The diagnostic monitor measures the voltages at the diagnostic monitor connector Pins. When certain air bag deployment wires are shorted to ground (heavy lines illustrated in the electrical schematic above), the system may become susceptible to unwanted deployment of the air bag(s). The diagnostic monitor senses a short to ground on any of these circuits and helps prevent unwanted air bag deployment by blowing the diagnostic monitor thermal fuse. Blowing this fuse removes all power (battery and back-up power) from the air bag deployment circuits. While the short to ground exists, the monitor will flash diagnostic trouble code 13 or code 14, depending on where the short appears (see code 13 and 14 for more details). If the short to ground is intermittent and temporarily corrects itself, the diagnostic monitor will flash code 51. NOTE: If the short to ground returns, the higher priority codes 13 or 14 will be flashed instead of 51. If the Air Bag indicator is flashing code 51 and a short to ground has not been serviced, this means that an intermittent short to ground exists in the air bag system. The diagnostic monitor should be replaced only after service of the intermittent short has been completed. Some service tips for finding an intermittent short to ground are: 1. Consult OASIS (Restraint Systems service Code 104000) for up to date diagnostics and descriptions of wiring concern locations for the vehicle (VIN number) you are working on. OASIS is updated daily using concern descriptions from engineering and Dealership Service sources. 2. Inspect wiring and harnesses in areas where they pass through or are located next to metal components (i.e. engine compartment bulkhead, body sheet metal, component mounting brackets, etc.) Code 51 After Air Bag Deployment NOTE: Diagnostic monitors can withstand several air bag deployments and do not need to be replaced after every deployment. Only replace the diagnostic monitor if it is damaged. Occasionally, after an air bag deploys, the internal wiring of the air bag(s) may become shorted to the metal housings of the air bag(s). This internal air bag short is detected by the diagnostic monitor as a short to ground in the air bag deployment wiring. Since the diagnostic monitor is still operating immediately after most deployments, the monitor will detect the short and will flash code 13 and blow its internal thermal fuse. After the deployment, as the air bag(s) cool off, the internal shorted wiring may correct itself, therefore the short to ground will no longer exist and the diagnostic monitor will flash code 51. If a vehicle with a deployed air bag is flashing code 51, inspect the vehicle for crushed wiring, sensors, etc. and replace as required. If no damage is found, assume that the deployed air bag was the cause for the intermittent short and replace the diagnostic monitor when the new air bag(s) are installed. After a short to ground has been corrected, the diagnostic monitor will flash out Diagnostic Trouble Code 51. Diagnostic Trouble Code 51 indicates that the thermal fuse inside the diagnostic monitor is blown and the short to ground no longer exists. If a short to ground has not been located and serviced (short to ground corrected itself), consult OASIS for potential wiring shorts. If a short to ground has been correctly located and serviced then replace diagnostic monitor. DO NOT replace diagnostic monitor until the short to ground has been positively located and serviced. Replacing diagnostic monitor before servicing a short to ground will result in repeat service..." by Ford
 
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Addicted to Junk
85 Bronco, 309ci I6 w/4bbl, np435, 4" lift, 37" Irok NDs, 4.56 w/ Detroit Locker and tru trac
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16,035 Posts
I would personally fix it. I've been in an accident where the airbag saved my teeth, literally. Seatbelt locks don't work fast enough, and that was in an 03 mustang. I would've ate the steering wheel if it weren't for that air bag.
 
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The Tennessee Warden
96 XL, built 357W, E4OD, BW1356, 4.56 gears
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