Need help with 95 roadmaster sedan

[roctreese1]

First of all, love my RM sedan! Awesome riding and 27mpg! (1) Horn blows intermittently. I researched and found the probable culprit is airbag expansion. Since new replacement parts don't exist, I want to relocate horn switch to driver door control panel where window, mirror, seat controls are. I want to disconnect wires at steering wheel and add new wires to control from side control panel. Where do I start to find where to connect new wires? (2) Courtesy lights intermittently stay on. Seems the instrument panel round dimmer switch might the culprit. Problem goes away when finding sweet spot on switch. Is it common to replace that switch? (3) Door locks intermittently activating randomly while driving. What is the most likely cause of that? I read somewhere that it might be the ignition switch. What's the best way to troubleshoot to be sure where the problem is? (4) When driving without radio on, I can hear the hvac control box cycling. It appears when the inside temperature reachs the set point, the controller seems confused. Do I need to replace the control module or is that normal? Thanks in advance! Roc

 

[Gluttenforpunishment]

Try this website, no clue how far it goes back, but you may get lucky. Wiring diagrams for cars – Technical support for auto electrician repair

 

[HotZ28]

The wires to the horn in the air bag, are nothing but a ground switch/contact to the horn!

 

[ilgoldstein]

I still find it hard to believe no one has come up with a repair solution to the horn contact membrane issue. Roadies are not the only cars that use this. For some Corvettes there are replacement membranes, but our airbags are riveted together. Used airbags come up every once in a while on EBay, and on some junkyard exchanges. Last one I got was from someone on a Facebook group (check the profile carefully, lots of scammers.)

Here is an interesting mod:

 

[roctreese1]

I still find it hard to believe no one has come up with a repair solution to the horn contact membrane issue. Roadies are not the only cars that use this. For some Corvettes there are replacement membranes, but our airbags are riveted together. Used airbags come up every once in a while on EBay, and on some junkyard exchanges. Last one I got was from someone on a Facebook group (check the profile carefully, lots of scammers.)

Here is an interesting mod:

🙂 I saw that same video. Maybe something like that would work, but this guy's job seems pretty shoddy to me. I think I am going to try to run an entirely new wire to the horns directly to a add-on relay and add a momentary switch to the left side control panel that has the mirror, seat, window controls on it. That's the best I could come up with. Thanks for your input! Roc

 

[nate7799]

I know this isn't the best solution , but it works for me . I took two wires and stuck them where the horn fuse is . Then I put a spring loaded button next to the steering column. Sometimes I have to press the horn and the button at the same time , because it only sticks on intermittently. I used to have a toggle switch , but I'd forget to turn it off and would get woken up at 2am with my horn blaring . So at least that doesn't happen anymore .