Remote Start Troubleshooting - SOLVED

[Fless]

Oh man, I WAS selecting the C option, thought "C" was for Chevy!

Welp, that makes sense now!
Thanks Fless!! I would have lived my whole life not knowing...

Ha! Now you're on the right "path!"

 

[mikez71]

Heres a few snapshots for comparison..

 

[mikez71]

 

[DaveO9]

Found a company that does TCCM programming...

GM TCCM Transfer Case Control Module Programming — Ewalt's Auto Tuning

This listing is for a transfer case control module (TCCM) that is programmed/flashed for your vehicle with the newest updates from GM using your VIN to match your vehicle. After you purchase the TCCM you will need to provide us with your VIN so we can program it before we ship it to you. The followi

www.ewaltsautotuning.com

Thanks, I will contact them to see if they can help.

One thing I was thinking about, regarding the fact that RA does not list a TCCM for single speed t-case: I wonder if the 2-speed one covers both single and 2-speed? I noticed that my original TCCM P/N is listed in the long list of OEM TCCMs it replaces.

View attachment 445548
View attachment 445551

Thanks for posting these screen shots. I went through every parameter and compared with mine. The only one that was significantly different was "Range Actuator Command" - yours is 0%, mine is 49%. Not sure if that means anything. I was doing the diagnostic key-on, engine-off, in 2-high. Looks like you were in 2-high as well.

I re-ran the ATC learn procedure with the Tech 2, just for grins. No change to remote start status.

 

[mikez71]

Interesting, I was also key-on, engine-off, 2-hi.
And your theory makes sense why we only see one TCCM module forsale.

Might check what the Tech2 shows with your old TCCM regarding "range actuator command"

 

[swathdiver]

One thing I was thinking about, regarding the fact that RA does not list a TCCM for single speed t-case: I wonder if the 2-speed one covers both single and 2-speed? I noticed that my original TCCM P/N is listed in the long list of OEM TCCMs it replaces.

ACDelco lists 24261367 covering the NP0, NQF and NQH transfer cases.

 

[DaveO9]

Looking at the cardone brand on rockauto, it says "vehicle specific programming required ON the vehicle."

While not cheap, a new Dorman module looks to be $120 after you return core..
I'm thinking not a whole lot more than having a dealer reprogram.
(I'd pay that to avoid going to the dealer!)

Return it if it doesn't work. Send the core in if it does work.

(unless the Dorman requires programming too, hopefully they bypassed the VIN programming..)

I finally ordered the Dorman unit today from RA. We will see in a few days if it works!

ACDelco lists 24261367 covering the NP0, NQF and NQH transfer cases.

Hmmm, interesting. Since they all use the same module now, it would seem as if I should be able to find someone that could reprogram my original 24261367 to work with the 2-speed. I will look into that further if the Dorman unit I just bought doesn't solve my issue.

 

[swathdiver]

Hmmm, interesting. Since they all use the same module now, it would seem as if I should be able to find someone that could reprogram my original 24261367 to work with the 2-speed. I will look into that further if the Dorman unit I just bought doesn't solve my issue.

Just logged into ACDelco TDS and got big messages about using counterfeit clones (J2534) and a warning that doing so would get one locked out.

Anyhow, I plugged in my '13s VIN and saw a menu description for programming all three transfer cases and then part numbers for what I believe were the two 2-speed variants.

 

[mikez71]

Awesome! But since they show part numbers for the 2 speed xfer module, possible original 1 speed modules can't be reprogrammed to 2?

But angry because they gotta screw with us little guys trying to program our own modules they made this stupid way..

 

[Doubeleive]

Just logged into ACDelco TDS and got big messages about using counterfeit clones (J2534) and a warning that doing so would get one locked out.

Anyhow, I plugged in my '13s VIN and saw a menu description for programming all three transfer cases and then part numbers for what I believe were the two 2-speed variants.

there must be some ***** ones out there my clone mdi updated with the bosch software multiple times and never have had a issue
this is there warning message on the website
Access Unauthorized with Destination System Error
ONLY if you get an Access Unauthorized with Destination System error - This is more than likely caused by the use of a counterfeit MDI or MDI 2. Aftermarket J2534 devices are not impacted. Please use the contact us form https://www.acdelcotds.com/contactus instead of calling in for support.

WARNING- USE OF COUNTERFEIT "CLONE" GM MDI DEVICES
will result in your account being locked. Aftermarket J2534 devices are not impacted

 

[Doubeleive]

my guess is there is some compromised clones out there trying to backdoor into the gm servers when they are connected and that's the reason for the error message
that's my educated guess anyway

 

[swathdiver]

Awesome! But since they show part numbers for the 2 speed xfer module, possible original 1 speed modules can't be reprogrammed to 2?

But angry because they gotta screw with us little guys trying to program our own modules they made this stupid way..

Ideally, I'd like to get the VIN of a truck with the MP3010 and see what programming options are available to it.

The NP0 wasn't available in 2009 and my other two also have the MP3023.

 

[DaveO9]

I'm pleased to report back that @mikez71 suggestion of trying out a new Dorman TCCM worked! New module installed, did the learn procedure, and everything's working - all T-case modes AND REMOTE START!!! Thanks to Mike and everyone else for the help. Sorry this was such a wild goose chase.

We may not ever know the whole explanation as to why the module worked fine for its function, but prevented remote start. There is one small possibility.... the Dorman module had a sticker over the connector ports saying to "four- pin connector must be connected last to avoid communication errors." (Four-wire connector is the one that supplies power to the module) I did not know that rule when I did the t-case conversion, so it's possible I toasted a circuit or something inside the module.

 

[Fless]

I'm pleased to report back that @mikez71 suggestion of trying out a new Dorman TCCM worked! New module installed, did the learn procedure, and everything's working - all T-case modes AND REMOTE START!!! Thanks to Mike and everyone else for the help. Sorry this was such a wild goose chase.

We may not ever know the whole explanation as to why the module worked fine for its function, but prevented remote start. There is one small possibility.... the Dorman module had a sticker over the connector ports saying to "four- pin connector must be connected last to avoid communication errors." (Four-wire connector is the one that supplies power to the module) I did not know that rule when I did the t-case conversion, so it's possible I toasted a circuit or something inside the module.

Just remember that most of the Dorman stuff (as bad as the electronic stuff can be) has a lifetime warranty. Every once in a while they do score some points.

 

[j91z28d1]

I'm pleased to report back that @mikez71 suggestion of trying out a new Dorman TCCM worked! New module installed, did the learn procedure, and everything's working - all T-case modes AND REMOTE START!!! Thanks to Mike and everyone else for the help. Sorry this was such a wild goose chase.

We may not ever know the whole explanation as to why the module worked fine for its function, but prevented remote start. There is one small possibility.... the Dorman module had a sticker over the connector ports saying to "four- pin connector must be connected last to avoid communication errors." (Four-wire connector is the one that supplies power to the module) I did not know that rule when I did the t-case conversion, so it's possible I toasted a circuit or something inside the module.

that's awesome it worked.

the wild goose chase is a good thing, I learned some stuff from this thread and I'm sure others will too.

 

[Doubeleive]

that's awesome it worked.

the wild goose chase is a good thing, I learned some stuff from this thread and I'm sure others will too.

ditto I sub'd to it from the get go, even digging around trying to help out learned some new stuff

 

[mikez71]

I learned alot too! Let's go TYF!!!
Only threw the dorman suggestion out there because I was out of ideas..
It may not have been caused by the '4 pin connector' since you had no communication errors.

Super glad you have it squared away.. You know what to do now.. (SOLVED!)

 

[DaveO9]

I learned alot too! Let's go TYF!!!
Only threw the dorman suggestion out there because I was out of ideas..
It may not have been caused by the '4 pin connector' since you had no communication errors.

Super glad you have it squared away.. You know what to do now.. (SOLVED!)

OK, I give, how the heck do you change the thread title? i know I've seen many do that, and I think I've even done it myself, but now I'm not seeing the button or link to "edit thread"

 

[mikez71]

@Fless might know how..

I can't find it either!

 

[Doubeleive]

OK, I give, how the heck do you change the thread title? i know I've seen many do that, and I think I've even done it myself, but now I'm not seeing the button or link to "edit thread"

I believe the option to make changes to the title "times out" you could ask @Fless to make a change, admins have the option to edit