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Old 09-12-2019, 12:53 PM   #1
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2006 Thomas - What are these?

A church where I help with the vehicles recently acquired a 2006 Thomas Freightliner C2 ex school bus. I am trying to eliminate some of the clutter. Can anyone tell me what these switches do? Are they needed?
One is a little silver push button with a green ring light flashing on/off. Pushing it does nothing.
The other is the red round button with the little red button.
The bus gad one of those precheck/post check systems with all those little discs located throughout the bus. A Zonar system. Not sure if it had anything to do with those unknown buttons.

Any help?
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Old 09-12-2019, 01:07 PM   #2
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A photo might help... But if it was originally a school bus there could be 2 switches that operated the flashers and stop sign.
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Old 09-12-2019, 01:23 PM   #3
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My bad on the photo
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Old 09-12-2019, 01:40 PM   #4
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That little white one is the rocket launcher
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Old 09-12-2019, 02:21 PM   #5
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I need to find out the launch code or stop in for a reload. Must be for the people that blow past the blinking stop signs.
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Old 09-12-2019, 02:28 PM   #6
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I don't recognize these buttons but hopefully someone who is familiar with the Freightliner models will chiume in.
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Old 09-12-2019, 05:08 PM   #7
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Mine had an identical button ring light thingy that was hooked to the zonar when I got it, I don’t have a clue about the other one.
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Old 09-12-2019, 08:50 PM   #8
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Thanks, that's half the battle
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Old 09-20-2019, 04:40 PM   #9
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Damn, saw this thread and was hoping for an answer -- oh well...

I too have the zonar and the round, white/silver button with the green illumination ring around it. I don't have the red button...

The green ring continues to flash for a while after shutting off the engine.
But nothings killed my batteries yet...
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Old 09-20-2019, 06:43 PM   #10
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That’s good to know. Thanks. I’ll eventually be tracing it out when I look at removing things that have no purpose.
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Old 09-23-2019, 01:09 AM   #11
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Originally Posted by Mikey_HD View Post
That’s good to know. Thanks. I’ll eventually be tracing it out when I look at removing things that have no purpose.
Please post what you find...

And what is this zonar anyway...?
(I know it's a tracker but what are the individual discs and can I just rip them off the bus or...?)
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Old 09-23-2019, 10:39 AM   #12
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From what I understand they are part of the precheck and postcheck for driving. I could be wrong but the driver would go around the bus to the various discs with a hand held device forcing them to go to each location to verify all is well and the bus is ready to drive.
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Old 10-02-2019, 02:04 PM   #13
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Originally Posted by Mikey_HD View Post
From what I understand they are part of the precheck and postcheck for driving. I could be wrong but the driver would go around the bus to the various discs with a hand held device forcing them to go to each location to verify all is well and the bus is ready to drive.
Crazy! Like the night watchman's clock/punch at all the doors on the route?!

Mine must already be bypassed 'cause the bus can move...
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Old 10-02-2019, 02:19 PM   #14
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Crazy! Like the night watchman's clock/punch at all the doors on the route?!

Mine must already be bypassed 'cause the bus can move...
The Zonar equipped buses that I have worked on have not had an ignition interlock. The gizmo that the drivers carried stored time, date and which thingy that was scanned.

Forgive the technical jargon.

At the end of the day they would put the Zonar scanner into the cradle in the office recharge and download the data.

Not to say that they all work that way. Just the ones I have tinkered with.
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Old 10-02-2019, 02:45 PM   #15
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Originally Posted by PNW_Steve View Post
The Zonar equipped buses that I have worked on have not had an ignition interlock. The gizmo that the drivers carried stored time, date and which thingy that was scanned.

Forgive the technical jargon.

At the end of the day they would put the Zonar scanner into the cradle in the office recharge and download the data.

Not to say that they all work that way. Just the ones I have tinkered with.
Thanks PNW!

Mikey_HD -- sorry to have hijacked the thread a bit...
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