Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×

Thread Tools Search this Thread Display Modes
Old 05-28-2014, 09:26 AM   #1
4 Rivet Member
mprokop87's Avatar
1978 28' Argosy 28
Victor , New York
Join Date: Sep 2012
Posts: 408
Brake lights always on

Recently I have noticed that my brake lights are always on, even after the key is off. If I pull up on the pedal really hard I can get them to turn off, however, I need to use a lot of force. Is there some adjustment under the dash that I can change? It was hard to see under there so I figured I would ask first in case someone else has seen/done this.
mprokop87 is offline   Reply With Quote
Old 05-28-2014, 10:16 AM   #2
Rivet Master
overlander63's Avatar
1993 21' Sovereign
Colfax , North Carolina
Join Date: Jun 2003
Posts: 21,252
The stoplight switch on your motor home should be adjustable.
Unplug it, and rotate the switch on its threads until it is slightly closer to the brake pedal. Usually, however, the reason this happens is the plastic threads have stripped, allowing the switch to ride up to the point the lights stay one. If you crank the switch down far enough that no longer happens, the brakes themselves will be slightly applied.
overlander63 is offline   Reply With Quote
Old 05-28-2014, 10:24 AM   #3
Rivet Master
Smartstream's Avatar

1982 28' Airstream 280
Port Angeles , Washington
Join Date: Aug 2008
Posts: 1,916
There is quite bit of linkage from the pedal to the master cylinder. The pedal pushes a rod through the firewall to a bell crank to a rod that goes down to another bell crank to a rod that connects to the master cylinder. Lack of use can allow corrosion to bind the system. Cleaning the joints and lubrication will fix your problem. The is a picture of the system in the P-30 Service manual. I can try to copy it later if you need.
Cheers, Dan

"Socialist governments traditionally do make a financial mess. They always run out of other people's money. It's quite a characteristic of them."
~ Margaret Thatcher ~
Smartstream is offline   Reply With Quote
Old 05-28-2014, 10:38 AM   #4
Rivet Master
HowieE's Avatar
1991 34' Excella
Princeton , New Jersey
Join Date: Aug 2003
Posts: 7,065
Images: 12
The stop light switch is a normally open switch that closes as you depress the brake pedal. For what ever reason the brake pedal arm is not returning enough to open the switch. It could be, as noted above, the linkage. It could be a weak return spring. Less likely is the switch adjustment as there is little that would have caused that to move.

Try lubing the linkage first than look at the pedal return spring. Adjusting the switch at this point may just be masking the original problem.
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles

HowieE is offline   Reply With Quote
Old 05-28-2014, 11:27 AM   #5
4 Rivet Member
mprokop87's Avatar
1978 28' Argosy 28
Victor , New York
Join Date: Sep 2012
Posts: 408
I will check the linkage over and also adjust the switch. The pedal does return to the top without any issues so hopefully the switch just needs some messing with.

Last night I did reach up trying to feel for the switch but had no luck so thats why I wrote this. If I have time tonight I will look at it, however, I think it will be tomorrow.

Smartstream, thanks for offering to copy the service manual but I already have a copy of it. It came with my Argosy!
mprokop87 is offline   Reply With Quote
Old 05-28-2014, 01:21 PM   #6
Rivet Master
Currently Looking...
Gainesville , Florida
Join Date: Jul 2005
Posts: 7,061
Blog Entries: 2
If your lights are on and draining the battery, you can pull a fuse temporarily. Do not drive that way because your brake lights will not work. Jim
xrvr is offline   Reply With Quote
Old 05-28-2014, 06:22 PM   #7
4 Rivet Member
mprokop87's Avatar
1978 28' Argosy 28
Victor , New York
Join Date: Sep 2012
Posts: 408
It's fixed! The issue was much simpler than I thought and I feel embarrassed to tell you. The switch has two metal nuts on it that you can push on but need to twist off. Well one had loosened up and caused the switch to come loose. I took the nut off, rebent it, and put it back on. Problem solved

Sent from my SCH-I605 using Airstream Forums mobile app
mprokop87 is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Brake lights, brake controller not functioning adwriter73 Brakes & Brake Controllers 17 01-16-2014 09:37 AM
E53 w/ Tekonsha brake controller lights 3rd brake light when manual lever applied warmrain Brakes & Brake Controllers 10 11-14-2013 09:35 AM
tail and clearance lights always on?? bhutch74ly Lights - Interior & Exterior 4 11-20-2012 08:46 PM
brake controller light is always on nomader Brakes & Brake Controllers 5 03-04-2010 11:21 PM
Lights Always On? The Flintstones Electrical - Systems, Generators, Batteries & Solar 9 02-12-2007 03:25 PM

Featured Campgrounds

Reviews provided by


This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.

All times are GMT -6. The time now is 12:36 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.