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Tire Size Calibration, Shift Points and Tire Pressure Adjust(warnings/setpoints)
- Thread starter desert_wagon
- Start date
I'm interested in the shift points and if I need to be concerned.
I have 37s on my 3500 non-PW truck. I have AlfaOBD and a OBDLink MX adapter. Need to get bypass cable.
Does changing the tire size address the shift points based on the tire size and speed being correct? Or does something else need to be addressed?
I'm willing to use a different product if necessary.
Thank you.
jadmt
Well-Known Member
calibrating for the tire size will do it.
PMHQ
Member
I gotta say, I just got done with using AlphaOBD, and it was pretty easy.... I adjusted My TPMS to 35 and adjusted for 37s....I like that it goes down to the Millimeter instead of .25in like the Procal, but I am OCD.....I have a Procal coming for my 2022, that I will never use---I bought AlphaOBD because I did not want to wait and I am not disappointed! I can adjust so much other stuff that it boggles my mind! I am going to put the option back on that shows which gear I am in, as I miss that from my 2019 1500 Limited....The fog light drop out with the high beams is another I might try out as I like to go out in the desert a lot at night.......I cant say enough about it....Thank you fellas that helped me out with it (I saved all of the instructions in an envelope in my truck and on my Desktop for others to utilize) Stay blessed and Happy New Year
adamkeenum
New Member
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- Oct 27, 2021
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I'm using hypertech to just reprogram tire size and have my TPMS light on, so not ideal. I felt like the truck drove better with the tire size corrected. Been hoping AEV's procal would be updated to support the PW. Some have used it with success.
Tazer RAM and AlfaOBD are options that I know of where you can change tire diameter and TMPS along with a lot of other options, both require a security module to be bypassed. From my understanding the Kaodtech security bypass is the easiest option. Think there is a thread on here about it.
Security Module Bypass | KaodTech
If you have a 2018+ RAM and would like to perform diagnostics or make changes to the modules of your truck using tools like AlfaOBD or AutoEngenuity, this bypass is for you.Does this allow access to all modules?It has been tested connecting to the BCM and RFH. Since it bypasses the security...www.kaodtech.com
Tazer Ram Security Bypass Modules – Z Automotive
www.zautomotive.com
In your above you mention the BCM and RFH can.....which is which on a 2021 RAM 3500 Laramie?I'm using hypertech to just reprogram tire size and have my TPMS light on, so not ideal. I felt like the truck drove better with the tire size corrected. Been hoping AEV's procal would be updated to support the PW. Some have used it with success.
Tazer RAM and AlfaOBD are options that I know of where you can change tire diameter and TMPS along with a lot of other options, both require a security module to be bypassed. From my understanding the Kaodtech security bypass is the easiest option. Think there is a thread on here about it.
Security Module Bypass | KaodTech
If you have a 2018+ RAM and would like to perform diagnostics or make changes to the modules of your truck using tools like AlfaOBD or AutoEngenuity, this bypass is for you.Does this allow access to all modules?It has been tested connecting to the BCM and RFH. Since it bypasses the security...Tazer Ram Security Bypass Modules – Z Automotive
One is Black/Breen
One is White/Green or Whie/Whie
You're mixing metaphors, so to speak.
BCM = Body Control Module
RFH = RF Hub
Bypass goes into the CANBUS connectors.
White/Green wire to WHITE base connector (CANBUS-IHS)
Yellow/Blue wire to BLACK base connector (CANBUS-C)
AlfaOBD
Has anyone played with AlfaOBD on their 2019 HD's yet? I'm curious if anything is accessible to "change" and if it just works. There is lots of different info out there on other forums, but i haven't found anything in regards to the 2019's. EDIT: AlfaOBD does work, here is the what is needed...
hdrams.com