Dealer gave me 4 digit pin...alphaobd is asking for a 5-digit pin to reset rf-hub? NOW MULTIPLE FAILURES...

[timothy585]

All I wanted to do was change the tire circumference to match my new tires AND lower the tire pressure threshold a little.

Following an online video, I made the changes and the final step was to reset the RF-HUB. Everything is going great until AlfaOBD is asking for a 5-digit pin and I got a 4-digit pin from the dealer.

Where do I go from here??

Thanks.

 

[timothy585]

Ok, what the hell did I do?

I backed out of the program and now when I started the truck I'm getting multiple errors...
4WD disabled
Stability control disabled
TPMS disabled
Cruise disabled

WTF did I do and how do I recover?

 

[Dean2]

Did you make a Log record of the settings before you changed any of them. If so print it out and go through and make sure all the settings are back to their original values. If you didn't do that basic step, which is clearly laid out in all the instructions and the threads on here, then you got a lot of work to do.

Make a log of all current settings. Go back through all the settings you changed and put them back to the original value. Work from there. That, or you need to take it to the dealer and get it re-flashed.

 

[timothy585]

I can take it to the dealer to get re-flashed Monday, not a problem.

But, do you know why it would have asked for a 5-digit PIN instead of a 4-digit PIN which is what I've seen in every instruction/video that I've found?

Also, literally, the only two changes I made to ANYTHING were changing the mm value for tire circumference from 2646 to 2791 and tire pressure threshold from 60psi to 50psi. I can't go back and change a setting back to something when I never modified it...unless since it took the changes as I made them, BUT I didn't have the PIN, the download/update got corrupted maybe?
I dunno, but it seems like not having the correct PIN would cause the update to be cancelled and the original config numbers loaded and the unit returned to "As Found" values.

 

[oe542bob]

On my 2018, it was a 4 digit pin to reset the RF Hub after I changed TPMS settings. There also was a 5 digit pin that wasn’t needed nor did I have it.
When I bought my 2022 1500, the shop manager/owner said that I wouldn’t be able to do that anymore because there was a pin that had to be accessed through Wi-Tec. Then it was only good for a short period of time. It wasn’t a static number like the previous years had. Might be that your dealer can change what you want, but I doubt they will be able to lower your TPMS thresholds. Tire circumference probably.
Using AlfaOBD, the only change I’ve made to my 2022 was the fog light drop out to “no”.

 

[Dean2]

I reset the tpms on my 2021 2500 with 6.4. After 2019 you do not have to reset the rf hub to do that. I have never reset the tire size but my understanding is you do not need to reset rf for that either.

 

[timothy585]

On my 2018, it was a 4 digit pin to reset the RF Hub after I changed TPMS settings. There also was a 5 digit pin that wasn’t needed nor did I have it.
When I bought my 2022 1500, the shop manager/owner said that I wouldn’t be able to do that anymore because there was a pin that had to be accessed through Wi-Tec. Then it was only good for a short period of time. It wasn’t a static number like the previous years had. Might be that your dealer can change what you want, but I doubt they will be able to lower your TPMS thresholds. Tire circumference probably.
Using AlfaOBD, the only change I’ve made to my 2022 was the fog light drop out to “no”.

Ok, thanks. That makes sense. I got the 4-digit code from my dealer this morning, but he said it was only good for a 12 hour period.

I just tried resetting the TPMS thresholds back to 60PSI (it accepted the change) and tire circumference back to OEM (it accepted the change), but it still re-starting with Check Engine(solid), BRAKE, ABS lights all on and the above mentioned systems are all still disabled/need service.

 

[timothy585]

I reset the tpms on my 2021 2500 with 6.4. After 2019 you do not have to reset the rf hub to do that. I have never reset the tire size but my understanding is you do not need to reset rf for that either.

Ok, thanks. At this point will probably disconnect batteries for awhile and see if a system "reset" helps at all. Maybe the download process got locked somehow because of the PIN issue and just needs a cold-start??

Unless someone knows of a reason to not do this?

 

[Dean2]

Record all error codes. Clear the codes using the obd reader or alpha. That is one of its main functions. See if they come back. If they do, record them again, then disconnect the battery for a few hours and try again.

 

[oe542bob]

Hmm, so you got a 4 digit pin and that allowed you to go back to square one. Did AlfaOBD ask for it?
Also, I’m not an expert here, but I believe there is an ABS reinitializing setting to run in AlfaOBD for the ABS. I didn’t ever have to do or use that however. Hopefully someone will chime in for ya.

 

[timothy585]

I noticed every system error is related to speed, directly or indirectly.
1) Speedometer only shows three dashes "---"
2) Traction Control is disabled (requires wheel speed differentials)
3) Cruise Control is disabled (requires known speed)
4) Trailer braking is disabled (current speed is a variable)
5) Stability control is disabled (requires wheel speed differentials)
6) ABS is temporarily unavailable (requires wheel speed differentials)
7) 4WD is temporarily unavailable (requires wheel speed for shift-on-the-fly)

Also got the pop-up below regarding resetting the ABS system. I didn't get an error specific to the EGS, so I'm not resetting that one yet.

Also, a PIN was NOT asked for until I got to the reset RF-HUB option...but a poster mentioned that wasn't required for him past 2019 models, so that may have nothing to do with any of this.

When I made the only two changes...tire size and tire pressure threshold, I received an acknowledgment that those two parameters were changed successfully. RF-HUB (and PIN) issue might not even come into play.

I'll update after I reset the ABS.

 

[timothy585]

Also, I have heard that depending on what changes are made, a little driving is required to populate the database, if you will, with trended data before the function starts to work properly again. I'll also try that soon...just a little tentative getting up to highway speeds for a little while with all these errors still present.

 

[G-Ride990]

Ok, thanks. That makes sense. I got the 4-digit code from my dealer this morning, but he said it was only good for a 12 hour period.

I just tried resetting the TPMS thresholds back to 60PSI (it accepted the change) and tire circumference back to OEM (it accepted the change), but it still re-starting with Check Engine(solid), BRAKE, ABS lights all on and the above mentioned systems are all still disabled/need service.

That guy is full of crap.

Try a zero in front or at the end of your pin.

the 5 digit is known as a, "rolling" pin and is only good for a certain amount of time.

The 4 digit pin you need is a static pin and is good forever.

As far as I know dealerships are only allowed to pull a certain number of pins per day. So sometimes they charge you for it or give you a hard time to get it.

Take a look at the HUGE Alfa thread to see what I am talking about if you need more info.

Sometimes you will need some key-cycles or drive-cycles to make everything happy. If you look in that Alfa thread I had a setting that took a few days to finally work. Can't remember what it was off the top of my head.

 

[timothy585]

Thanks. Yeah, I'm leaning towards a little drive time so it can collect some data. A common error below is "Signal not valid" for wheel rotation direction, etc. Also, code C0078 (tire-size mismatch). I'm going to clear that and get this thing on the road for awhile.

 

[timothy585]

OK. GOT IT!!!!

The ABS error was causing ALL the other errors listed in my previous post.

Followed the ABS Initialization procedure below EXACTLY and all seven items in my list cleared.

Took most of the day for me to do a 20 minute job I suppose...but it's done, and I learned quite a bit.

 

[oe542bob]

Nice. Great feeling when it works out! Can be frustrating though.

 

[Dean2]

Tim - very happy you got that cleared up and working good. Thanks for updating the thread.

 

[RamDiver]

OK. GOT IT!!!!

The ABS error was causing ALL the other errors listed in my previous post.

Followed the ABS Initialization procedure below EXACTLY and all seven items in my list cleared.

Took most of the day for me to do a 20 minute job I suppose...but it's done, and I learned quite a bit.

I've been tweaking the tire circumference sizes on my '21 Warlock using AlfaOBD for a couple of years, twice /year for summer and winter wheels. I have never had to reset the ABS module, but during the last tweak, everything went crazy.

A long story short, while I was driving home from a dealership after a maintenance/warranty check that included changing to my summer wheels, I had the brilliant idea of resetting the wheel circumference.

After resetting the wheel circumference, I received 5 or 6 notifications on the dash, CEL, no EPS or speedo. I toured the settings and found a few things out of whack, so I tried to restore the settings to several backup files using AlfaOBD. No Joy.

I'm sitting at the side of the road in rural BFN on a Friday afternoon, a bit more than mildly concerned and decided to bail out after having no success with restoring to backups.

I called an SA I knew at the dealership, drove back on the highway with no speedo or EPS, and he re-flashed the BCM. Solved my headaches for no charge with a smile.

After I got home, I read much of the AlfaOBD thread again and many other posts here, there and elsewhere about changing the wheel circumference sizes using AlfaOBD.

I'm convinced that any grief with CELs or failure notifications after a wheel circumference tweak should be responded to by re-initializing the ABS module as a SOP.
There is a reason that Alexey has this ABS module init. warning.

I suspect that the ABS module occasionally loses its mind after a wheel circumference change and spews out garbage on the CAN bus network, killing the connection to many other modules. Hence, the myriad of unrelated modules that fail to connect.

I've learned my lesson and won't forget about that ABS module that requires a slap to get back in line.


Thanks for sharing your story and adding support to my belief in how we must remember to reset the ABS module when communication on the CAN bus takes a dump.

.

 

[Big3MG]

For what it’s worth, when I used AlfaOBD in 2020 to adjust TPMS thresholds on a 2020 RAM 1500 Rebel, I did not need any PIN. I also used a bypass cable harness to make the change. It took about 30 min of driving before the settings kicked in.