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Old 04-19-2017, 09:10 AM   #1
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T444E cruise control not working

I picked the bus up a couple months ago and the cruise has never worked. I don't get any response from the cruise controls.

Could something be disabled? What should I be looking at?
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Old 04-19-2017, 09:48 AM   #2
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Usually you have to go to an International dealer to have it unlocked. Have you tried using it when in neutral with the bus running? They're commonly used as a high idle to keep the revs up when warming a bus in very cold weather...

Start the bus with the trans in neutral and the parking brake on. Then flip the cruise on/off switch to the on pos(mine seems backwards from what it should be). Then hit the accel button till the engine revs up. It should hold that rpm until you disengage it.

On my bus it works great as a high idle lock but once its in gear the cruise is disabled. Haven't gotten around to going in for a quote to get it unlocked, but I think some people have needed paperwork from International before they will actually unlock it...
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Old 04-19-2017, 09:51 AM   #3
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Originally Posted by slaughridge85 View Post
Usually you have to go to an International dealer to have it unlocked. Have you tried using it when in neutral with the bus running? They're commonly used as a high idle to keep the revs up when warming a bus in very cold weather... On my bus it works great as a high idle lock but once its in gear the cruise is disabled. Haven't gotten around to going in for a quote to get it unlocked, but I think some people have needed paperwork from International before they will actually unlock it...
Good info, thanks. I will check on the idle control. What paperwork are they looking for?

Is there any software out there that will let you do the unlock? Servicemaxx?
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Old 04-19-2017, 09:57 AM   #4
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I think the paperwork was some sort of affidavit stating that its not being used to transport people anymore, but like I said I haven't gotten into the particulars of it yet. So far my heavy ass foot seems to work just fine on the highway as my personal cruise...

Also not sure about the software, wait till Chris chimes in as he is the guru of all things electronic/software related around here. He makes us all look like Luddites on a regular basis...
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Old 04-19-2017, 10:02 AM   #5
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I can't tell you anything about the T444E computer's cruise setup but I would speculate that the bus wouldn't have been delivered with a button on the dash but with the feature turned off in software. Seems like they'd have just put a blank in rather than a non-operational switch.

My Blue Bird with Cummins ISC has a cruise switch on the dash, too. Seems like it quit working once because a wire on the park brake switch had come loose. Anyway, the point is to at least make a cursory inspection of the wiring early in the troubleshooting. Some cruise controls may be enabled only in a specific speed range, so try setting it at various speeds between 35 and 65 MPH.
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Old 04-19-2017, 10:20 AM   #6
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the busses werent delivered swith a button and the feature turned off... the buttons are there as a High idle setting as well... you flip the left-hand button down (like a light switch off).. then you hold the ACCEL button until you reach the RPM you want and the SET will slow the idle down... this is the primary function of why those buttons are added.. it is Required in cold weather if the bus is to idle longer than 5 mintues that you run it at least 1300 RPM to keep it warm.. esp with the heaters on...

Cruise control is selectable from the computer interface... many schools have it turned off as they dont wanrt bus drivers using it... the high idle feature could also be set automatic based in coolant temperaure.. (I programmed mine this way)..

in that mode the idle speed will adjust itself after the bus is stopped and in neutral with no brake pedal applied for 5 minutes.... it will strive to meet I believe 160 degrees coolant temp

the cruise control will also fail to function for the Key cycle if either of the 2 brake light circuits shows a fault.. there will be a code set (cant remember the code #) but it wont activate the WARN ENGINE light. you can retrieve the flash-codes with the diagnostic button under the dash...

where are you located? if its close to ohio or Florida or anywhere in between (i go back n forth a lot).. I have the programmer and software and could run the commands to turn on the cruise

-Christopher
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Old 04-21-2017, 09:14 PM   #7
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Quote:
Originally Posted by cadillackid View Post
the busses werent delivered swith a button and the feature turned off... the buttons are there as a High idle setting as well... you flip the left-hand button down (like a light switch off).. then you hold the ACCEL button until you reach the RPM you want and the SET will slow the idle down... this is the primary function of why those buttons are added.. it is Required in cold weather if the bus is to idle longer than 5 mintues that you run it at least 1300 RPM to keep it warm.. esp with the heaters on...

Cruise control is selectable from the computer interface... many schools have it turned off as they dont wanrt bus drivers using it... the high idle feature could also be set automatic based in coolant temperaure.. (I programmed mine this way)..

in that mode the idle speed will adjust itself after the bus is stopped and in neutral with no brake pedal applied for 5 minutes.... it will strive to meet I believe 160 degrees coolant temp

the cruise control will also fail to function for the Key cycle if either of the 2 brake light circuits shows a fault.. there will be a code set (cant remember the code #) but it wont activate the WARN ENGINE light. you can retrieve the flash-codes with the diagnostic button under the dash...

where are you located? if its close to ohio or Florida or anywhere in between (i go back n forth a lot).. I have the programmer and software and could run the commands to turn on the cruise

-Christopher
Ok, just got a chance to start it up tonight and confirmed the high idle function works. Given this I am assuming that it is turned off in the computer.

How do I use the diagnostic button? Key in accessory, codes display..?

I wish I could take you up on that! I picked the bus up in VA but live in Massachusetts.
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Old 06-14-2017, 10:25 PM   #8
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Make sure your brake lights are working, my cruise control stopped working due to a bad brake light switch on the pedal assembly. replaced switch and came back to life. was also able to tell if you have hydraulic brakes, my pump wouldn't run when the ignition was off. step on the brakes and no growling noise under the floor.
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Old 03-18-2018, 12:28 AM   #9
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Quote:
Originally Posted by cadillackid View Post
the busses werent delivered swith a button and the feature turned off... the buttons are there as a High idle setting as well... you flip the left-hand button down (like a light switch off).. then you hold the ACCEL button until you reach the RPM you want and the SET will slow the idle down... this is the primary function of why those buttons are added.. it is Required in cold weather if the bus is to idle longer than 5 mintues that you run it at least 1300 RPM to keep it warm.. esp with the heaters on...

Cruise control is selectable from the computer interface... many schools have it turned off as they dont wanrt bus drivers using it... the high idle feature could also be set automatic based in coolant temperaure.. (I programmed mine this way)..

in that mode the idle speed will adjust itself after the bus is stopped and in neutral with no brake pedal applied for 5 minutes.... it will strive to meet I believe 160 degrees coolant temp

the cruise control will also fail to function for the Key cycle if either of the 2 brake light circuits shows a fault.. there will be a code set (cant remember the code #) but it wont activate the WARN ENGINE light. you can retrieve the flash-codes with the diagnostic button under the dash...

where are you located? if its close to ohio or Florida or anywhere in between (i go back n forth a lot).. I have the programmer and software and could run the commands to turn on the cruise

-Christopher
Hi, do you still have programming equipment? I need a few things done to my bus. I'm in ohio. Thanks, Robb
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Old 03-18-2018, 07:30 AM   #10
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Originally Posted by rube2112 View Post
Hi, do you still have programming equipment? I need a few things done to my bus. I'm in ohio. Thanks, Robb
I sure do! what are you looking to change in the program?
-Christopher
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