smcinc

Does anyone know how to disable the horn alarm that the dealer installed on my truck that sounds when your door is open and you are in gear?

BMH95

It sounds like the best option is going to be a cutoff switch spliced into the door lamp swith in the door jam. That way, the truck won't know the door is open.

Rob C

If you do that, the security system doesn't know the door isn't open, and then a thief can break in when ever.

BMH95

That's why you'd use a switch. That way you could just flip it off when you need to back up.

boarbuster

Or to make it easier just put a connector between the wires on the seat belt. Then it thinks the seatbelt is buckled all the time so no horn honking.

Desert Dually

can you explain this in a bit more detail?

DevilDogge

Sorry... that doesn't work... I cut the two wires on the seatbelt receiver and spliced them together because I was sick of the dinging when I didn't have my seatbelt on. Then when I got my U joint fixed at the dealer, they went ahead and put that fantastic little recall program on for me. It still honks... even with the seatbelt wires are spliced together.

az.mopar

I used a relay to open the circuit to the horn when the reverse lamps are on. The relay coil is energized by the reverse lamps. The common to normally closed points on the relay allow the horn to operate when not in reverse, and break the circuit in reverse....

DevilDogge

Genius!! Now I jus have to decide if I want to tackle that project.

frwinks

do you have a pic of this install? Where exactly do you put the relay, how do you wire it?
The seatbelt jumperwire trick does not work, even with the seatbelt pluged in the thing still goes off everytime you put it in R
thanks

BMH95

I'd love to know how to wire the relay for the reverse lamps / horn cuttoff. Doen't the lights still blink?

az.mopar

The only thing this does is disable the horn. Ill have to find my notes on this.

You need a Bosch/Tyco 30A SPDT relay - commonly available from AZ or CSK for "fog light" control. The terminals on the relay are numbered. Terminal 30 is connected to terminal 87A when the relay is not picked (de-energized). On my truck (2007) each horn has a ground wire on terminal 2 of the horn. Those wires are BK/DB and BK/OR. You have to break those two wires and connect the horn terminals (where the 2 wires went) to terminal 30 on the relay. Then connect the two wires (BK/DB and BK/OR) that were connected to the horn to terminal 87A on the relay. Terminal 85 on the relay is connected to ground. And terminal 86 is connected to the backup lamp circuit - I gotta find my note on that... OK the reverse light feed comes from the TIPM connector C8 pin 11 - a WH/LG wire. You can splice into that wire and connect it to pin 86 on the relay... you should be good to go.

CAVEAT::::::

This is on my 2007 CTD Ram and it looks like the 2006 is the same. Don't know for other years...

AND

If your not at home working on your vehicle electrical system, or don't understand the vehicle electrical system or relays... let someone who knows what their doing and has a "shop manual" with the wiring diagrams, do the work for you... so you don't cause any catastrophic vehicle failures!!!

boarbuster

Well it does work on mine. I didn't cut the wires by the way. I just used a scotch lock and put both wires in it.

DevilDogge

That's essentially the same thing. Maybe the trucks that had the recall done on them it doesn't work on them, but the ones that come from the factory already "honked" up it works on. I wish mine would be as easy as yours to fix.

boarbuster

I don't know what the deal is but maybe someone with greater knowledge than me will comment and explain it.