Computer will not relearn

Tiny
KEVIN GODWIN
  • MEMBER
  • 2008 CHEVROLET SILVERADO
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 80,000 MILES
P0569 code will not clear. And transfer case will not relearn. Replaced range sensor and shift motor. And re flashed tcm with the lasted calibration don't know what to do next. Will not do a atc relearn because of dtc and not clear dtc because of relearn has not been done updated tcm was exposed to fix this issue but it did not
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Monday, December 16th, 2013 AT 8:45 PM

10 Replies

Tiny
HMAC300
  • EXPERT
That is a code for the cruise control not coasting. Does the cruise work?
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Tuesday, December 17th, 2013 AT 6:31 AM
Tiny
KEVIN GODWIN
  • MEMBER
No it doesn't.
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Tuesday, December 17th, 2013 AT 2:45 PM
Tiny
HMAC300
  • EXPERT
The system will not relearn anything if there is a code. I have seen the steering wheel clock spring break causing the code which when fixed will allow the reprogram. Here is a guide to help you see what you are in for when doing the job and diagrams below to show you what it will be like for your truck.

https://www.2carpros.com/articles/steering-wheel-clock-spring-removal

Disconnect the battery before you begin. Check out the diagrams (Below). Please let us know what you find.

Cheers
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Tuesday, December 17th, 2013 AT 3:09 PM
Tiny
KEVIN GODWIN
  • MEMBER
Great insight there, I have order the clock spring because the cruise is not working, I cant see how they are connected but I will give it a shot.
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Tuesday, December 17th, 2013 AT 3:56 PM
Tiny
HMAC300
  • EXPERT
Has this thing been modified? Like with one of the bully dog as an example pcm redo? Thatmay be your problem. Or it may be a bad module as i'm assuming you have tried to reprogram the module and that is what is screwing up. I am also assuming yo have checked all the circuits for shorts etc as well as poor connections or connectors. There is a tsb on this 09-04-21-001,
but not sure that it will help you. Also was the tccm replaced? Kinda sounds like it but it may have been one of the other issues. Other than what I've suggested prior I have no idea. Also here is a thing on tips page, maybe not flowing a fuse but still shorting out causing your problem.

If you have fuse 67 30 amp popping (is mis-labeled on wiring diagram as being a 10 amp fuse), look right in front of where your left knee would be if you were sitting in driver's seat, where the wires come out of the t-case module they can rub on the metal support bracket that's right by it, shorting it out the ground in pic is clean and good i'm assuming as well. Can't think of anything else unless another trans wire is bad or poor connection causing it.
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Tuesday, December 17th, 2013 AT 4:17 PM
Tiny
KEVIN GODWIN
  • MEMBER
Yea I reprogramed the module (tccm) for this problem and it had an update to address this issue but still doing the same thing I was wondering if anyone else had ran into this problem. I was leaning towards a bad module but it was shifting fine between ranges only the problem of getting stuck every now and then before I replaced the shift motor
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Tuesday, December 17th, 2013 AT 4:28 PM
Tiny
HMAC300
  • EXPERT
This may be a screwy bu the tccm also grounds through the position actuator. Do you possibly think that the actuator sensor isn't grounding enough to cause this problem. See pic.
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Tuesday, December 17th, 2013 AT 4:29 PM
Tiny
KEVIN GODWIN
  • MEMBER
I can check that circuit again in the morning
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Tuesday, December 17th, 2013 AT 4:42 PM
Tiny
KEVIN GODWIN
  • MEMBER
That checks out fine, I got the clock spring part and installed it, the cruise stated working and the code is gone! I will take it to be re-programmed now thanks for your help I will get back to you if it doesn't work, Thanks again ;) I love this site.
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Friday, December 20th, 2013 AT 3:01 PM
Tiny
HMAC300
  • EXPERT
Good to hear, please use 2CarPros anytime we are here to help.

Cheers
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Saturday, December 21st, 2013 AT 5:58 AM

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