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Old 03-25-2019, 04:03 PM   #1
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Cruise Control on a Frieghtliner FS-65

Hey everyone. I'm looking at a Frieghtliner FS-65 but it doesn't have cruise control. This is one of my major requirements for a bus ( I'll be driving almost 4000km in 2 days from Toronto to Black rock city in this bus every year for the foreseeable future). Cruise control is a must. Has anyone added on cruise to their Fs-65 after purchase?

Cheers.
AB
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Old 03-25-2019, 04:39 PM   #2
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Great question!
I've got a SWEET FS65 and want to add cruise.
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Old 03-25-2019, 04:43 PM   #3
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Great question!
I've got a SWEET FS65 and want to add cruise.
I called Thomas but I don't have the vin yet. They couldn't do anything without it. Other than cruise it's a sweet bus. Original owner is a bus company, full service records, DOT every 6 months and oil changes regular. It's a cat 3126 with a md3060 behind it. If I get it I will definitely be unlocking 6th gear. Much excitement!
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Old 03-25-2019, 05:14 PM   #4
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Originally Posted by Ab01ns View Post
I called Thomas but I don't have the vin yet. They couldn't do anything without it. Other than cruise it's a sweet bus. Original owner is a bus company, full service records, DOT every 6 months and oil changes regular. It's a cat 3126 with a md3060 behind it. If I get it I will definitely be unlocking 6th gear. Much excitement!
Let us know how you get it unlocked. Many of us have been unsuccessful in getting Allison to ok it. They end up saying the bus is too old to allow the unlock. There have been some after market places recommended , but I find they don't have the necessary software to do it on the older models
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Old 03-25-2019, 05:19 PM   #5
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Let us know how you get it unlocked. Many of us have been unsuccessful in getting Allison to ok it. They end up saying the bus is too old to allow the unlock. There have been some after market places recommended , but I find they don't have the necessary software to do it on the older models
I know I guy who knows someone local with the cracked software, but I'd have to talk to him. Otherwise I could always try the Thomas/Allison route. I will ask about that and cruise when I call with the vin
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Old 03-25-2019, 06:06 PM   #6
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I know I guy who knows someone local with the cracked software, but I'd have to talk to him. Otherwise I could always try the Thomas/Allison route. I will ask about that and cruise when I call with the vin

I tried to do it with cracked software.. unless he has some saved CIN's that had 6th unlocked, its tough to do.. I learned that allison never lets even their elite dealers at the actual calibration files.. however the cracked allison DOC can load a different calibration in that has 6th unlocked.. theoretically we could get one TCM from each generation unlocked , download the CAL out of it and upload it into other people's TCMs.



I found out from ivestigating, that when getting allison 6th unlocked, they simply edit the CIN directly in their office, send a new Cal fike out and then the dealer flashes it onto your TCM.. but the dealer cant edit the Cal..



I had hoped to find 6th inhibit enabled as a CMC in the TCM. but wasnt so lucky with the couple TCMs I got into.. I was successful in flashing a 4th gen 5-only TCM into a 6th enabled by simply taking my cal file and flashing it onto the guy's bus.. in this case, the guy has a IC BE with a 6 speed 1000 in it.. it was only enabled as 5.. after doing the flash, he has 6 gears now..



the ones that you will be told are too old are typically Gen2 TCMs.. or "WTEC-II" logic from the mid 90s. it ran through till jan 98. if your bus is older than that. then you probably have WTEC-II which isnt compatible with allison DOC or any other current. scan tool except the old prolink stuff.




WTEC-III was introduced in physical year 1998.. so likely made it into a lot of trucks / busses for late 98 / 99+ model years.. WTEC-III supports J1939 abd is compatible with allison DOC (current allison scan tool).



Gen4 is mid 00;s and introduced 6 gears to the 1000/2000.. (some of the GMC 1000s got 6th in 05.. most of the rest didnt get 6 speed till 2006.. so if your bus has a 2000 series (2100,2200,2500PTS,2400) pre yeaer 2005/2006 it cant be upgraded to 6 speeds with a computer program.. )..


Gen5 is somewhere in the 2011/2012 timeframe and is still in use today.. it is harder to unlock stuff in as they invented "protected parameters".. there is cracked software to edit these.. but still no ability to edit cal..



if you have an A41(gen4) TCM you can break into it's OS and access the calibration with EFIlive Flashscan 2. and enable 6th gear.. as well as edit all of its shift tables..


most of these transmissions support J1939 commandsets.. its theoretically possible you can send a J1939 PGN / SPN combo to disable 6th inhibit and get 6th to operate... I dont have one to try.. though I do have the J1939 command-book for the 4th gen stuff. and what ive tested so far on my Gen4 works..



ECM / TCM "creative investigation" is a passion of mine.. was at it this weekend


IMG_0333.jpg


Christopher
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Old 03-25-2019, 06:15 PM   #7
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Cruise Control

This has been mentioned here before, I forget the exact thread, but the website explains whet he did.

Not FS-65 specific, but may be adaptable?

I don't know your bus or powertrain, but if it's new enough to have an electronic pedal, you might look at this:

Cruise Control for GM LS Drive-by-Wire Engines

It plugs inline between the pedal and ECM, takes over sending a pedal signal to the ECM when in cruise mode.
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Old 03-25-2019, 06:19 PM   #8
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Originally Posted by cadillackid View Post


Gen4 is mid 00;s and introduced 6 gears to the 1000/2000.. (some of the GMC 1000s got 6th in 05.. most of the rest didnt get 6 speed till 2006.. so if your bus has a 2000 series (2100,2200,2500PTS,2400) pre yeaer 2005/2006 it cant be upgraded to 6 speeds with a computer program.. )..




if you have an A41(gen4) TCM you can break into it's OS and access the calibration with EFIlive Flashscan 2. and enable 6th gear.. as well as edit all of its shift tables..


most of these transmissions support J1939 commandsets.. its theoretically possible you can send a J1939 PGN / SPN combo to disable 6th inhibit and get 6th to operate... I dont have one to try.. though I do have the J1939 command-book for the 4th gen stuff. and what ive tested so far on my Gen4 works..



ECM / TCM "creative investigation" is a passion of mine.. was at it this weekend


Attachment 31135


Christopher
Christopher,

I have a 2002 MD-3060 with 6th locked out.

Do I understand correctly that I can enable 6th gear myself with EFI Live?
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Old 03-25-2019, 06:23 PM   #9
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Originally Posted by PNW_Steve View Post
Christopher,

I have a 2002 MD-3060 with 6th locked out.

Do I understand correctly that I can enable 6th gear myself with EFI Live?

you are Gen3.. I dont know if EFI can enable Gen3.. the best way for you im thinking is we need to find a Cal from a similar vehicle that has the same Gen TCM..


your TCM has 2 connectors (Gen3). and will list throttle type and governed RPM on it... we find a TCM that has similar parameters with 6th enabled.. and then flash it onto your TCM..



there are often medium duty trucks wit hthe same engines that have 6th enabled... or non-school busses.. ie transits with same engine..



governed RPM is important as is throttle type.. this dictates when the trans will shift in kickdown mode as well as how it gets throttle info...

-Christopher
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Old 03-25-2019, 06:25 PM   #10
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as for cruise control... the FS-65 is very similar to the FL60/70 chassis.. im thinking you look at an FL60/70 wiring diagram, poke the pins in the ECM and see if it just works.. it may already be enabled in the computer, just needs the buttons installed..
im pretty sure the 3126 was before the Multiplex system that the C7s got.. so its discreet switches for cruise..
-Christopher
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