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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: 11,783
Fircrest, WA
Reed Offline
Maniac
Reed  Offline
Maniac
Joined: Aug 2001
Posts: 11,783
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: 8,682
Georgia, USA
CatFish Offline
carpal tunnel
CatFish  Offline
carpal tunnel
Joined: Sep 2005
Posts: 8,682
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



How come you never see a headline saying ‘Psychic Wins Lottery?


Re: Mystery Switch! [Re: Grim] #735623
April 27th 2018 1:26 pm
April 27th 2018 1:26 pm
Joined: Aug 2001
Posts: 11,783
Fircrest, WA
Reed Offline
Maniac
Reed  Offline
Maniac
Joined: Aug 2001
Posts: 11,783
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: 14,107
Van Diego California
frscke1 Offline
frscke1  Offline

Joined: Jun 2010
Posts: 14,107
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: 14,107
Van Diego California
frscke1 Offline
frscke1  Offline

Joined: Jun 2010
Posts: 14,107
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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