Mystery Switch! -- SOLVED! | Joined: Apr 2018 Posts: 11 stranger | OP stranger Joined: Apr 2018 Posts: 11 | I found out what this is! I was able to trace one of the wires into the front grill and saw a box. 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.
Last edited by Grim; July 02nd 2018 9:47 pm.
1984 Dodge B250 Custom | | | Re: Mystery Switch! | Joined: Aug 2001 Posts: 12,107 Likes: 37 Maniac | Maniac Joined: Aug 2001 Posts: 12,107 Likes: 37 | 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! | Joined: Apr 2018 Posts: 11 stranger | OP stranger Joined: Apr 2018 Posts: 11 | 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! | Joined: Sep 2005 Posts: 9,879 Likes: 242 carpal tunnel | carpal tunnel Joined: Sep 2005 Posts: 9,879 Likes: 242 | 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? | | | Re: Mystery Switch! | Joined: Aug 2001 Posts: 12,107 Likes: 37 Maniac | Maniac Joined: Aug 2001 Posts: 12,107 Likes: 37 | 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! | Joined: Apr 2018 Posts: 11 stranger | OP stranger Joined: Apr 2018 Posts: 11 | 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.
Last edited by Grim; April 28th 2018 1:44 am. Reason: Typo
1984 Dodge B250 Custom | | | Re: Mystery Switch! | Joined: Jun 2010 Posts: 18,308 Likes: 569 | Joined: Jun 2010 Posts: 18,308 Likes: 569 | 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! | Joined: Apr 2018 Posts: 11 stranger | OP stranger Joined: Apr 2018 Posts: 11 | ... or ejection seat. Happy life! :P 1984 Dodge B250 Custom | | | Re: Mystery Switch! | Joined: Jun 2010 Posts: 18,308 Likes: 569 | Joined: Jun 2010 Posts: 18,308 Likes: 569 | 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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