Help: Service Brake Sytem in DIC
- Thread starter Dirtbikindad393
- Start date
X2 you should still check these and have a look at the brakes even if your TCM is bad
The problem is this problem is very intermittent. I had the truck and it didn't do it to me one time....
Can't narrow down a problem when it is not doing it...
I personally still feel it is wiring related somehow just due to how intermittent it is.
It could be a TCM though. As i told Dane, i have never seen it, but it's a possibility.....
Can't narrow down a problem when it is not doing it...
I personally still feel it is wiring related somehow just due to how intermittent it is.
It could be a TCM though. As i told Dane, i have never seen it, but it's a possibility.....
I have had an ABS DTC that doesnt trigger the MIL but if I look for DTC's it's there.I think it is one of the front sensor codes. I had heard that there were problems being experienced regarding the reluctor ring and the sensor not transmitting proper pulse signal.
I have'nt heard how to correct it though.
I have'nt heard how to correct it though.
The dealer that had the truck last says his tech did all the steps leading up to the diagnoses that the TCM is bad.
He said they tested the TCM and is getting no signal from it. I emailed that place Stewie told me about PCM Performance I am emailing with Alex there and he is great help. I will be buying a unit from them and they will vin flash it for me $175.00 shipped. I sure hope its the problem I want to get back to working on my Mods for mileage and dirtbikin!
He said they tested the TCM and is getting no signal from it. I emailed that place Stewie told me about PCM Performance I am emailing with Alex there and he is great help. I will be buying a unit from them and they will vin flash it for me $175.00 shipped. I sure hope its the problem I want to get back to working on my Mods for mileage and dirtbikin!
Update
Ok so I got another TCM and installed it. So far its working fine but haven't had the chance to drive it more than a few miles. I have a job today that will get 70 miles on it and I will know then if the TCM was the problem.
On the weird side: After installing the TCM I got a DIC message saying "Range Shift Inhibited" and it wouldn't go into gear at all. It was late and dark so I left it and fumed all that night. I posted that on one of the sights and a guy said that can happen if you don't disconnect the batt. when installing the TCM. I didn't disconnect the batt just threw it in.
The next day I decide to try it one more time before switching back to old TCM and its fine with an engine light still on but TCM is working fine. I then get my KB IOH kit so I install it right away. In the morning I disconnected the batt for about an hour to try and clear the codes and see if the engine light goes out. That night my wife and I go to dinner and take the truck to see if everything is working ok. I turn on the A/C and its blowing cold on my side and very hot on hers. She said she never turned on the seat heater when she got in but when we started driving her seat was heating up and the lights were on. Then after a couple miles the engine light goes out and never comes back on. I shut the A/C down and try it again same thing. Shut it off and go have dinner come back out try it again and its works fine blowing cold air from both sides. We teased each other that the truck is possesed!!!!! uuuuwwwwweeeee uuuu
Today is a new day I will put about 70 miles on it and we will see what happens today.
Ok so I got another TCM and installed it. So far its working fine but haven't had the chance to drive it more than a few miles. I have a job today that will get 70 miles on it and I will know then if the TCM was the problem.
On the weird side: After installing the TCM I got a DIC message saying "Range Shift Inhibited" and it wouldn't go into gear at all. It was late and dark so I left it and fumed all that night. I posted that on one of the sights and a guy said that can happen if you don't disconnect the batt. when installing the TCM. I didn't disconnect the batt just threw it in.
The next day I decide to try it one more time before switching back to old TCM and its fine with an engine light still on but TCM is working fine. I then get my KB IOH kit so I install it right away. In the morning I disconnected the batt for about an hour to try and clear the codes and see if the engine light goes out. That night my wife and I go to dinner and take the truck to see if everything is working ok. I turn on the A/C and its blowing cold on my side and very hot on hers. She said she never turned on the seat heater when she got in but when we started driving her seat was heating up and the lights were on. Then after a couple miles the engine light goes out and never comes back on. I shut the A/C down and try it again same thing. Shut it off and go have dinner come back out try it again and its works fine blowing cold air from both sides. We teased each other that the truck is possesed!!!!! uuuuwwwwweeeee uuuu
Today is a new day I will put about 70 miles on it and we will see what happens today.
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Update
Everything worked great no codes or lights or bells. The last big test will be towing the trailer.
Everything worked great no codes or lights or bells. The last big test will be towing the trailer.
I had weird codes when I bought my 2001. I bought a 2003 TCM at a junkyard for $150 and it fixed her right up!!
Sounds like this is the fix...A friend has an '05 6.0 w/ Allison and it's doing the same thing...I guess the TCM is the answer...Thanks for the info...
You mean 8.1?
It's a 3/4 ton CC/SB that runs on unleaded, I guess it's a 8.1
Why you gotta put me on front street primo?
It's a 3/4 ton CC/SB that runs on unleaded, I guess it's a 8.1
Why you gotta put me on front street primo?
LOL Sorry primo, I don't think the allison came with a 6.0
Everything is great now! Went to Tucson, AZ. for Thanksgiving and averaged 18 MPG combined (hand calc) and it ran great with no issues. Still haven't towed the trailer but that will happen this weekend.