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Old 05-16-2022, 09:25 AM   #1
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Join Date: Mar 2022
Location: IL
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Year: 2007
Thomas safe-t-liner alarm help

Hello! I turned on the bus today, opened the stop signs, closed them, and now every time I try to turn off the bus the alarm keeps blaring. Any ideas??

So far I've disconnected the camera (weeks ago) but all the other electrical systems are intact. Never had this problem before. All the doors are closed and everything.

Thanks!

Edit: the brake error light is on, that's new too.

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Old 05-16-2022, 09:50 AM   #2
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Join Date: Jun 2015
Location: Toledo OH
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Year: 2006
Coachwork: Thomas
Chassis: MVP-EF
Engine: Cat C7 + Allison 3000PTS
Sounds like a student check alarm. I don't have one but I've heard many buses have a "hidden" button near the rear door that you have to go press, which was designed to ensure the driver walks through the bus to check for hidden kids at the end of a route. Usually it's triggered by operating the warning lights; once you've done that it arms the system to remind you when you shut off the bus at the end of a route.
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Old 05-16-2022, 04:42 PM   #3
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Join Date: Jul 2021
Location: Southern Oregon
Posts: 998
Year: 1996
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Engine: DT444E (7.3L) International
Rated Cap: 31,800 pounds
Quote:
Originally Posted by dbsoundman View Post
Sounds like a student check alarm. I don't have one but I've heard many buses have a "hidden" button near the rear door that you have to go press, which was designed to ensure the driver walks through the bus to check for hidden kids at the end of a route. Usually it's triggered by operating the warning lights; once you've done that it arms the system to remind you when you shut off the bus at the end of a route.

Yup, ripped mine right out along with the camera, the "DVD", the door and window alarms, the computer modules stuffed into the electrical panel to run them, and HUNDREDS of feet of wound up cables that the installers were too lazy to shorten.
There's a whole bunch more room in my electrical panel now......and I'm not even close to done yanking wires out of that bugger.
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Old 05-17-2022, 10:55 AM   #4
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Join Date: May 2022
Location: Williamsburg
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Year: 2007
Coachwork: Thomas FS-65
Chassis: Freightliner
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Before doing anything to your Thomas School Bus, go through these slides.

https://slideplayer.com/slide/6051140/
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