ECU module programming guide using FDRS

[Ajzride]

You are a genius @Bob_Mac. Manually changing my two Forscan changes back and then running configuration (not PMI) followed by a self-test cleared the DTC on my IPC. I can't believe those two benign changes caused this headache.

EDIT:

However, my part numbers are still wrong. Hopefully now that the DTC is gone the SW update will come back shortly.

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[20ecoboost21]

If I made any changes with forscan, will this possibly cause my GWM to not update? I can't seem to get it to clear.

 

[Ajzride]

If I made any changes with forscan, will this possibly cause my GWM to not update? I can't seem to get it to clear.

two hours ago I would have said no. Now I say possible. We’re any of your changes in the gateway?

 

[20ecoboost21]

No I've only made BCM and IPC changes

 

[Skier167]

Can you change the values back to what the originals ones were? If you don't have them then try this as last resort.

720-01-01 2F0A 1064 F4CA

@Bob_Mac. This did the trick!! Thank you. The update completed and now a new apim update showed up. I did have to go through the usb update process again but glad I was able to avoid the much longer update

 

[Skier167]

I’ve now run all the updates and the only ones that are still there is a apim and the gear shift update even though both were successful. My sync rev is 144. So now it’s just a waiting game till more populate from the sounds of it.

 

[rpeterslll]

I’ve now run all the updates and the only ones that are still there is a apim and the gear shift update even though both were successful. My sync rev is 144. So now it’s just a waiting game till more populate from the sounds of it.

Try clicking the refresh button on right of the Green Run button for the APIM and then run the APIM update again. This downloaded and installed the next available APIM update for me immediately rather than waiting.

 

[Snakebitten]

I gotta admit that it was a fair bit more productive when there was a convoy of us all plowing through the whole process simultaneously.
The latecomers don't have the advantage of the wave and momentum and collective absorption of all the nuance that's required.

As a result it's more like oral surgery now than a chiropractor visit. ???

 

[Bob_Mac]

You are a genius @Bob_Mac. Manually changing my two Forscan changes back and then running configuration (not PMI) followed by a self-test cleared the DTC on my IPC. I can't believe those two benign changes caused this headache.

EDIT:

However, my part numbers are still wrong. Hopefully now that the DTC is gone the SW update will come back shortly.

The IPC USB update did complete correct? It's just the CANBUS that didn't?

 

[Ajzride]

The IPC USB update did complete correct? It's just the CANBUS that didn't?

Yes, the USB completed, and the can did not.

After undoing my forscan changes I was able to do a “configure IPC” and the u2100 cleared. So now I have no DTC on any modules.
However my part number is still corrupted, and even after a dozen network scans the IPC update hasn’t come back I to my list so I can finish it.

 

[Skier167]

Try clicking the refresh button on right of the Green Run button for the APIM and then run the APIM update again. This downloaded and installed the next available APIM update for me immediately rather than waiting.

Thank you!! Got my rev up to 358 now

 

[Bob_Mac]

Yes, the USB completed, and the can did not.

After undoing my forscan changes I was able to do a “configure IPC” and the u2100 cleared. So now I have no DTC on any modules.
However my part number is still corrupted, and even after a dozen network scans the IPC update hasn’t come back I to my list so I can finish it.

Now run a PMI on the IPC and report back.

 

[Snakebitten]

Thank you!! Got my rev up to 358 now

You are 1 revision away from the finish line.
I predict it will go smoothly.
Just be sure that you give your truck time to wake up between each shutdown and ignition-on/engine off BEFORE you click anything in FDRS.

 

[JaHoova]

Game changer??? If I had to guess, which I do, I believe this procedure will allow the Stuck OTA 1.7.1 update to clear allowing the APIM to update via USB immediately rather than have to wait that extended period of time.

I downloaded the TSB and the required F-F mini-standard USB and the male to male cable are on their way. Should be here Friday and I'll give this a try

 

[Skier167]

You are 1 revision away from the finish line.
I predict it will go smoothly.
Just be sure that you give your truck time to wake up between each shutdown and ignition-on/engine off BEFORE you click anything in FDRS.

Thank you. When it says to restart I head in the house for 15 mins with it shut off. Just finished the usb portion of a new Gwm update that populated on the scan after the apim update.

I’ve been at this since yesterday afternoon. My router doesn’t like the Fdrs servers for some reason. I kept switching from my 2g-5g WiFi signals then it would connect for a while and then I’d have to do it again.

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