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Mystery Switch! -- SOLVED! #735602
April 27th 2018 1:35 am
April 27th 2018 1:35 am
Joined: Apr 2018
Posts: 11
Boise, ID, USA
Grim Offline OP
stranger
Grim  Offline OP
stranger
Joined: Apr 2018
Posts: 11
Boise, ID, USA
I found out what this is! I was able to trace one of the wires into the front grill and saw a box.

[Linked Image]

Which apparently is a very old radar detector.

-------------------------------------------Below is original post --------------------------------------------

My new '84 Dodge B250 that I purchased through an auction has a mystery switch on the dash that I cannot figure out and I'm hoping to get some ideas before tearing into the dash. The switch is 3 position. It seems to be off when on the left. If I switch it to middle or right it beeps once. If I leave it there, occasionally/randomly it may beep a couple times but I believe only when the engine is running, not when in accessory mode. The little red led above the switch flashes when it beeps. It has 4 wires. Two of the wires head towards the fusebox in the glove compartment and the other two head into the dash towards the instrument cluster. I don't see any aftermarket boxes/devices anywhere on the vehicle that it might connect to. There is some additional wiring that appears to be audio related (a line-in setup I think) but it doesn't appear related. I would appreciate anyone who might have an idea what this could be for.

[Linked Image]

Last edited by Grim; July 02nd 2018 9:47 pm.

1984 Dodge B250 Custom
AdSense long
Re: Mystery Switch! [Re: Grim] #735603
April 27th 2018 2:26 am
April 27th 2018 2:26 am
Joined: Aug 2001
Posts: 11,679
Fircrest, WA
Reed Offline
Maniac
Reed  Offline
Maniac
Joined: Aug 2001
Posts: 11,679
Fircrest, WA
All I can say is that it is definitely not factory. Does the beeping occur when any parameters are constant? Like at a constant speed, or temperature, or some other such condition? Low fuel?


Windows- they're what make a van worth owning!
Re: Mystery Switch! [Re: Grim] #735604
April 27th 2018 3:01 am
April 27th 2018 3:01 am
Joined: Apr 2018
Posts: 11
Boise, ID, USA
Grim Offline OP
stranger
Grim  Offline OP
stranger
Joined: Apr 2018
Posts: 11
Boise, ID, USA
I haven't driven it around with the switch engaged because I'm a little paranoid of what it might actually affect. The random beeping is when the van is in idling in park. Temperature was cold, fuel is 2/3 tank.

Last edited by Grim; April 27th 2018 3:02 am. Reason: Forgot some bits

1984 Dodge B250 Custom
Re: Mystery Switch! [Re: Grim] #735609
April 27th 2018 10:48 am
April 27th 2018 10:48 am
Joined: Sep 2005
Posts: 8,405
Georgia, USA
CatFish Offline
carpal tunnel
CatFish  Offline
carpal tunnel
Joined: Sep 2005
Posts: 8,405
Georgia, USA
Is the beep louder in the second position?
Appears to be a warning device of some type. Headlight sentry? Interior lights left on?
Arming switch for the E.M.P. generator? shocked


They can have my fried bologna sandwich when they pry it from my cold dead hands.
Re: Mystery Switch! [Re: Grim] #735623
April 27th 2018 1:26 pm
April 27th 2018 1:26 pm
Joined: Aug 2001
Posts: 11,679
Fircrest, WA
Reed Offline
Maniac
Reed  Offline
Maniac
Joined: Aug 2001
Posts: 11,679
Fircrest, WA
Flux capacitor! Turn it on and drive 88.8 miles per hour and see what happens!


Windows- they're what make a van worth owning!
Re: Mystery Switch! [Re: Grim] #735653
April 27th 2018 9:53 pm
April 27th 2018 9:53 pm
Joined: Apr 2018
Posts: 11
Boise, ID, USA
Grim Offline OP
stranger
Grim  Offline OP
stranger
Joined: Apr 2018
Posts: 11
Boise, ID, USA
The second positon beeps the same. Considering I also found remnants of evidence seal stickers on all the doors maybe the switch has a more sinister use? I should activate it and look for any secret compartments that have slid open. rofl

Last edited by Grim; April 28th 2018 1:44 am. Reason: Typo

1984 Dodge B250 Custom
Re: Mystery Switch! [Re: Grim] #735654
April 27th 2018 9:57 pm
April 27th 2018 9:57 pm
Joined: Jun 2010
Posts: 13,474
Van Diego California
frscke1 Offline
frscke1  Offline

Joined: Jun 2010
Posts: 13,474
Van Diego California
Its the vibrator for the passenger seat .... Happy Wife Happy Life ....lol


SUNSHINE VANS-VAN DIEGO
ADRENALIN BY THE GALLON & CHASIN RACIN
ONE FOR THE DIRT & ONE FOR THE STREETS
'93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB
'92 CHEVY G30 454 BEAUVILLE EXT 146" WB
Re: Mystery Switch! [Re: Grim] #735666
April 28th 2018 1:53 am
April 28th 2018 1:53 am
Joined: Apr 2018
Posts: 11
Boise, ID, USA
Grim Offline OP
stranger
Grim  Offline OP
stranger
Joined: Apr 2018
Posts: 11
Boise, ID, USA
... or ejection seat. Happy life! :P


1984 Dodge B250 Custom
Re: Mystery Switch! [Re: Grim] #735681
April 28th 2018 11:37 am
April 28th 2018 11:37 am
Joined: Jun 2010
Posts: 13,474
Van Diego California
frscke1 Offline
frscke1  Offline

Joined: Jun 2010
Posts: 13,474
Van Diego California
That would be a push button, with no early warning buzzzer .....lol


SUNSHINE VANS-VAN DIEGO
ADRENALIN BY THE GALLON & CHASIN RACIN
ONE FOR THE DIRT & ONE FOR THE STREETS
'93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB
'92 CHEVY G30 454 BEAUVILLE EXT 146" WB

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