Pulling ECM and Transmission Codes on 2006 Thomas HDX with Allison 3000

[Consciousbeast]

I have a 2006 thomas HDX cat C7 and Allison 3000pts - after going up a steep hill its stuck in a first gear limp. I want to run the codes to see whats up, but didnt feel like spending $400 plus on a scanner. Any thoughts on this?

 

[ewo1]

$400 bucks on a scanner that YOU WILL use again in the future.... Me I have a scanner and when the bus rolls, so does the scanner... I consider this a MUST HAVE if your gonna drive a bus!

What you need today is a tranny scanner and not an engine scanner.
If you have an Allison 3000 you can pull tranny codes thru the pushpad. If you have an Allison 2000 your gonna need Allison doc.

If you have a 2000 tranny you can also do the "Limp home" test to find out if it is electrical or hydraulic, the tranny failure.

Limp home test, post #17

Allison Transmission trouble

I have a 2007 Thomas c-2 Freightliner I bought with Check Transmission light on.The bus did move with no problem when I got it,then it sat for a while and I had to floor it to get it to move,reverse was fine.Now it won't move either way.I read all the stuff about brakes being locked...

www.skoolie.net

Link-> Allison 3000 manual, post #11

Stranded Skoolie in Kansas City

Hi! New Skoolie owner here! My father-in-law bought us a Skoolie and when driving it to us, it began having trouble with transmission (Allison transmission?). They aren’t able to find anyone to work on it to get it to us! The certified Allison transmission mechanics won’t touch it because it’s...

www.skoolie.net

pulling trouble codes
download this md3060 operators manual and on page 23 of the PDf you will see the process on how to pull trouble codes thru the pushpad.
have a pen and paper ready because you have to count how many times the light blinks.

 

[Consciousbeast]

$400 bucks on a scanner that YOU WILL use again in the future.... Me I have a scanner and when the bus rolls, so does the scanner... I consider this a MUST HAVE if your gonna drive a bus!

What you need today is a tranny scanner and not an engine scanner.
If you have an Allison 3000 you can pull tranny codes thru the pushpad. If you have an Allison 2000 your gonna need Allison doc.

If you have a 2000 tranny you can also do the "Limp home" test to find out if it is electrical or hydraulic, the tranny failure.

Limp home test, post #17

Allison Transmission trouble

I have a 2007 Thomas c-2 Freightliner I bought with Check Transmission light on.The bus did move with no problem when I got it,then it sat for a while and I had to floor it to get it to move,reverse was fine.Now it won't move either way.I read all the stuff about brakes being locked...

www.skoolie.net

Link-> Allison 3000 manual, post #11

Stranded Skoolie in Kansas City

Hi! New Skoolie owner here! My father-in-law bought us a Skoolie and when driving it to us, it began having trouble with transmission (Allison transmission?). They aren’t able to find anyone to work on it to get it to us! The certified Allison transmission mechanics won’t touch it because it’s...

www.skoolie.net

pulling trouble codes
download this md3060 operators manual and on page 23 of the PDf you will see the process on how to pull trouble codes thru the pushpad.
have a pen and paper ready because you have to count how many times the light blinks.

Brother, thank you so much for the intention you put into this response. I honor that. What scanner would you buy if you were me? Would you use the same 9 pin port to read those codes? This is an 06 with an Allison 3000 pts - I will check out this link you sent regarding that transmission.

 

[ewo1]

I xan't reccomend a scanner for the cat engine. I never played with a Cat motor. then you will need Cat diag software.
For the allison, a Nexiq clone will do just fine. You will need allison doc for diag software. Older versions (cracked) will do just fine. The Nexiq clones come with all the cables you need.

Again, with an allison 3000, you can pull codes thru the shifter push pad. try that and see what you get.

 

[Consciousbeast]

Ok sweet brother - I bought the Ancel HD601 which will read the J1939 protocol. I found a tech at a shop with the Allison Doc software so I am going to call him and get him the codes that I pull as the vehicle is in the middle of nowhere at the moment.

 

[ewo1]

Ok sweet brother - I bought the Ancel HD601 which will read the J1939 protocol. I found a tech at a shop with the Allison Doc software so I am going to call him and get him the codes that I pull as the vehicle is in the middle of nowhere at the moment.

Do your self a BIG favor...

Look at the Allison manual, how to pull codes. Print it out and when your tech buddy comes by with Allison Doc ask him to show you if your pulling codes correctly on the push pad.

It is real important to know how to do this because one day, you WILL be on the side of the road wishing you had learned!

your not always gonna have help readily available.

 

[nikitis]

Again, with an allison 3000, you can pull codes thru the shifter push pad. try that and see what you get.

Unless it was an upgraded 3000 using existing old 3 or 4 speed shifter.

 

[Consciousbeast]

Do your self a BIG favor...

Look at the Allison manual, how to pull codes. Print it out and when your tech buddy comes by with Allison Doc ask him to show you if your pulling codes correctly on the push pad.

It is real important to know how to do this because one day, you WILL be on the side of the road wishing you had learned!

your not always gonna have help readily available.

Ok brother you got it. I am happy to keep educating myself on this. I haven't found the troubleshooting guide for that trans. Section 6.3 of the manual I found online has a section
"USING SHIFT SELECTOR FOR ACCESSING DIAGNOSTICS INFORMATION"

This is in the operators manual, I am wondering if there is a more in depth troubleshooting manual somewhere -

 

[Consciousbeast]

Unless it was an upgraded 3000 using existing old 3 or 4 speed shifter.

Good call, no I check the VIN with Thomas and got the serial # on the trans to verify. Its a 5spd Allison 300pts

 

[ewo1]

Good call, no I check the VIN with Thomas and got the serial # on the trans to verify. Its a 5spd Allison 300pts

When you turn the key ON, the shifter will display an "N". Put it in gear and if it is a 5 speed it wiil display "5". 6 speed will display "6". It's that simple.

 

[ewo1]

Ok brother you got it. I am happy to keep educating myself on this. I haven't found the troubleshooting guide for that trans.
This is in the operators manual, I am wondering if there is a more in depth troubleshooting manual somewhere -

post #24

Troubleshooting manual WTEC 3 - 3000 & 4000 series​

Allison 3000 push pad dead - no start - repair tips

Instructions for WTECII system (two digits on Your shift selector) LINK-> https://www.transmissioninstruments.com/troubleshooting/ This is a must have, print it and keep it in the bus! For 1992, 1993, 1994, and early 1995 models if experiencing erratic or no display; especially when there is...

www.skoolie.net

BTW, the search engine here is your best friend!

​

 

[Consciousbeast]

When you turn the key ON, the shifter will display an "N". Put it in gear and if it is a 5 speed it wiil display "5". 6 speed will display "6". It's that simple.

Okay sweet brother thank you so much, I also got the operating manual on the other post now period I will begin reading some sections of it and preparing myself