Went to dealer to claim my pin number

As i want to get the Alfaobd and change my tpms thresholds, they asked me for driver license and registration to verify i was the onwer, then grabbed the vin and gave me a 4 digit number but said the thing will expire after 24 hours ? If this how this pin number thing is supposed to work ? I'll be ordering the odb2 device today from Amazon but more likely i'll get on Wed, so that means another trip to the dealer to get anoter temp pin code ?

You don't need the pin for tpms, or most of what you can do with AlfaOBD. You need it for programming new remotes (I had to do this) and possibly something with the radio, but not sure on that one.

As far as the number expiring, I have no idea what they are talking about. The code is programmed into your vehicle computer. There is no way for it to expire, unless they gave you a bogus number or something.

JMod45 said:

You don't need the pin for tpms, or most of what you can do with AlfaOBD. You need it for programming new remotes (I had to do this) and possibly something with the radio, but not sure on that one.

As far as the number expiring, I have no idea what they are talking about. The code is programmed into your vehicle computer. There is no way for it to expire, unless they gave you a bogus number or something.

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I found this couple of min ago looking to see what i needed to lower the TPMS threshold, hopefully the dealer guy didn't give me the one that really expires if such a thing exist.
It says i need the pin to lower the tmps ??
https://www.ramforum.com/threads/tpms-setting-lowered.104111/

I had to use a PIN to lower mine. I used the Pin Puller app because my dealer was not cooperative.

Maybe a pin is necessary for programming new TPMS. Not sure. I updated the thresholds on my 2014 2500, didn't require a pin. 80psi is a bit high for normal driving, I only air the back up that much when I'm towing my TT.

Would it be any difference in the procedure for a 1500 vs a 2500 ? i guess more importantly can Alfaobd do it in my 1500 or do i need to get something different ? i was going to order the odb device thing from Amazon and get the Alfaobd today, all i need is to lower the TPMS not interested in anything else.

4 digit number should be your PIN.

You do need it to adjust TPMS threshold, AFAIK.

You wont need it for changing to different TPMS sensors, as the system should automatically pick up the new sensors once you drive them for a bit.

Check out the huge AlfaOBD thread (https://www.ramforum.com/threads/alfaobd.123982/) the first post has a bunch of links to known working stuff, along with TPMS and tire size changing. Pretty sure its the same/similar for a 1500.

As far as the 24 hour thing, I *think* that only applies to 2018+ trucks since they have a "more secure" setup in regards to connecting to the BCM.

chrisbh17 said:

4 digit number should be your PIN.

You do need it to adjust TPMS threshold, AFAIK.

You wont need it for changing to different TPMS sensors, as the system should automatically pick up the new sensors once you drive them for a bit.

Check out the huge AlfaOBD thread (https://www.ramforum.com/threads/alfaobd.123982/) the first post has a bunch of links to known working stuff, along with TPMS and tire size changing. Pretty sure its the same/similar for a 1500.

As far as the 24 hour thing, I *think* that only applies to 2018+ trucks since they have a "more secure" setup in regards to connecting to the BCM.

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Thanks a lot for the link.
From the links in that thread this is the TPMS one
https://drive.google.com/file/d/16GbPkcfRuN0KIXkyi8ALPmXgR3QuHDZh/viewhttps://drive.google.com/file/d/16GbPkcfRuN0KIXkyi8ALPmXgR3QuHDZh/view
I'll order the ODBLink MX now from Amazon.

I clicked on that google doc page, and read the instructions. I just updated my pressure thresholds, and quit getting alarms in my EVIC. I didn't go past step 4 and everything works fine in my truck.

I've only heard of the RF-HUB reset/replace being used if you have to change that part, which is a security thing, therefore why you would need the PIN.

I guess this may be a question for one of the experts, but what is the point of resetting the RF Hub if you're just changing some numbers in the BCM? It's just reading data from the hub, and if it is below the threshold, then it triggers an alarm.

I'm no expert at this, and only able to tell you what worked for me, so take that for what it is worth.

JMod45 said:

I clicked on that google doc page, and read the instructions. I just updated my pressure thresholds, and quit getting alarms in my EVIC. I didn't go past step 4 and everything works fine in my truck.

I've only heard of the RF-HUB reset/replace being used if you have to change that part, which is a security thing, therefore why you would need the PIN.

I guess this may be a question for one of the experts, but what is the point of resetting the RF Hub if you're just changing some numbers in the BCM? It's just reading data from the hub, and if it is below the threshold, then it triggers an alarm.

I'm no expert at this, and only able to tell you what worked for me, so take that for what it is worth.

Click to expand...

The TPMS sensors communicate to the RF hub, so if you change stuff in the RF hub you may (or may not) need to reboot it to save the changes.

Im not 100% sure on how the BCM and RF hub go together....like does the BCM pull the data from the RF hub when it boots up or does the RF hub push messages to the BCM real-time.

FWIW I did *not* need to reset my RF hub when installing the keyless enter n go, but some people did have to. Not sure why.

JMod45 said:

I clicked on that google doc page, and read the instructions. I just updated my pressure thresholds, and quit getting alarms in my EVIC. I didn't go past step 4 and everything works fine in my truck.

I've only heard of the RF-HUB reset/replace being used if you have to change that part, which is a security thing, therefore why you would need the PIN.

I guess this may be a question for one of the experts, but what is the point of resetting the RF Hub if you're just changing some numbers in the BCM? It's just reading data from the hub, and if it is below the threshold, then it triggers an alarm.

I'm no expert at this, and only able to tell you what worked for me, so take that for what it is worth.

Click to expand...

Found a video that describes how to do the config with Alphaobd and they seem to be two independent procedures, which of course makes me wonder as well why do we need to reset that hub if all we're doing is just lowering the PSI threshold. Maybe for the change to take place inmediatly ? Did you have to drive the truck long after just lowering the threshold ?

Btw i just ordered the odb2 MX thing from Amazon and tonight i'll download the obdalpha from Google Play, i think i have a couple of Android tablets at home that should work for this.

chrisbh17 said:

The TPMS sensors communicate to the RF hub, so if you change stuff in the RF hub you may (or may not) need to reboot it to save the changes.

Im not 100% sure on how the BCM and RF hub go together....like does the BCM pull the data from the RF hub when it boots up or does the RF hub push messages to the BCM real-time.

FWIW I did *not* need to reset my RF hub when installing the keyless enter n go, but some people did have to. Not sure why.

Click to expand...

Sounds like everyone's truck has a different personality to satisfy it. I can barely keep the wife happy, now I have to figure out the specific truck too? Dang

ram1500rsm said:

Found a video that describes how to do the config with Alphaobd and they seem to be two independent procedures, which of course makes me wonder as well why do we need to reset that hub if all we're doing is just lowering the PSI threshold. Maybe for the change to take place inmediatly ? Did you have to drive the truck long after just lowering the threshold ?

Btw i just ordered the odb2 MX thing from Amazon and tonight i'll download the obdalpha from Google Play, i think i have a couple of Android tablets at home that should work for this.

Click to expand...

I bought my truck on a Thursday and it had a slow leak in the rear passenger tire. Went from 80 at night, to 45 in the morning. Airing that thing up to 80 psi took a good 5 minutes with my 30 gallon air compressor cranked up to 100 psi. So I changed the threshold to around 60 psi on Friday afternoon/evening. Saturday morning, I still had to air it up, but didn't have to get to 80 before the TPMS light went away. I had new tires put on that day, and at some point changed the setting back to 70 psi for the rear, but haven't had the air get low since then, so I have no idea how long it took.

You can always try doing it with the pin code method, and if the pin doesn't work, see if the numbers update. If they don't, go back and get a new pin. I can see the new models having a different BCM that could have an expiring pin since everything nowadays is connected to satellites somehow, but you have a 2014 (same year as mine) so as far as I know, that pin should be good for life. As far as 2500 and 1500 BCM, just looking through all of the settings in there, I am guessing it is the same thing. There are options for auto lift gate and other items that are obviously not on a truck, so I'm guessing it is a pretty universal module.

whomever gave you the pin may not have known the security difference in the newer Rams to old..or forgot it's different. i bet your PIN is permanent being a 2014.

They gave me the same response when I asked for mine. The four digit pin is not the revolving one that changes. The guy just didn't know what he was talking about.

As far as I know you will need the pin to adjust the threshold. If you have to get into the RFH then you can bet on needing it.

4 digit pin is for the RF hub and fob programming.

5 digit pin is the revolving pin you won’t need. Only the dealer uses it

See post below

AlfaOBD
https://r.tapatalk.com/shareLink?sh...rum.com/index.php?posts/1842921/&share_type=t


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G-Ride990 said:

They gave me the same response when I asked for mine. The four digit pin is not the revolving one that changes. The guy just didn't know what he was talking about.

As far as I know you will need the pin to adjust the threshold. If you have to get into the RFH then you can bet on needing it.

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G-Ride is correct. The PIN you need is a four digit PIN. There IS also a key code. It is different and has 5 digits, one of them is a LETTER and its NOT the one you need for resetting the RFH hub.

Keep in mind those posting here, anyone who has a 3500 the TPMS system is different than the 2500's and no RFH hub update is needed.

For others you DO need to update the RFH hub. Its a two step process. You update the BCM FIRST with the new PSI thresholds you want to set. At this point after changing the PSI setting in the BCM, the PSI settings will NOT match what is stored in the RFH hub. You need to change the PSI settings in the RFH hub as well. To do so you do a re-set of the RFH hub. You need your 4 digit PIN to do that.

When you re-set the RFH hub the RFH will look at the BCM for any changes. It will then see the new PSI settings you just put in. The RFH hub updates itself to those new settings during the re-set.

(edited to correct info per Jimmy07 post below)

mjf6175 said:

G-Ride is correct. The PIN you need is a four digit PIN. There IS a ROLLING code that expires in 24 hours. It is different and has 5 digits, one of them is a LETTER and its NOT the one you need for resetting the RFH hub.

Keep in mind those posting here, anyone who has a 3500 the TPMS system is different than the 2500's and no RFH hub update is needed.

For others you DO need to update the RFH hub. Its a two step process. You update the BCM FIRST with the new PSI thresholds you want to set. At this point after changing the PSI setting in the BCM, the PSI settings will NOT match what is stored in the RFH hub. You need to change the PSI settings in the RFH hub as well. To do so you do a re-set of the RFH hub. You need your 4 digit PIN to do that.

When you re-set the RFH hub the the RFH will look at the BCM for any changes. It will then see the new PSI settings you just put in. The RFH hub updates itself to those new setting during the re-set.

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Minor clarification- the 5 digit code that has a letter is not a rolling code. It is the code to cut the physical key that’s inside the fob. If the dealer retrieved the code, then that is your permanent code. The only way to get a code that expires (which will be a 4 digit), is when a locksmith logs into techauthority with his credentials and the vehicle’s VIN.

Aight so i got the OBDlink MX thingy this afternoon and i downloaded the Alphobd app on my Android phone, connected the device to the truck, and was able to lower the TPMS threshold to 32psi front/rear and also did the Hub reset with the pin provided. Curiosity as you thought got the best of me so i don't know if the hub reset thing was needed or not but everything worked exactly as it did in the video i posted with the RAM 2500 with two separate procedures. I needed to make sure the dealer dude gave the right number so i went ahead and did the reset with it and it worked.
Thanks everybody for all the help provided.

ram1500rsm said:

Aight so i got the OBDlink MX thingy this afternoon and i downloaded the Alphobd app on my Android phone, connected the device to the truck, and was able to lower the TPMS threshold to 32psi front/rear and also did the Hub reset with the pin provided. Curiosity as you thought got the best of me so i don't know if the hub reset thing was needed or not but everything worked exactly as it did in the video i posted with the RAM 2500 with two separate procedures. I needed to make sure the dealer dude gave the right number so i went ahead and did the reset with it and it worked.
Thanks everybody for all the help provided.

Click to expand...

Nothing will hurt resetting the RF hub. It just wipes it clean and re downloads all relevant settings and information from the Truck that the RF hub requires. So making changes to settings that the RF hub controls say in the BCM. Instead of waiting for the RF hub to download the change you fast forward it


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What is the threshold for the TPMS warning to appear? I tried using the Alpha OBDLX ,followed the instructions and lowered mine from 80 to 65 all around, the problem I encountered was when I put the dealer provided 4 digit Pin in it said it was wrong. I backed out and saw on the screen that all tires showed 65 and no warning but not sure if that would have set off the warning as I wanted to lower it further... Really didn't want that icon to show up ..any help appreciated..