SPEEDO PROGRAMER

[gmcadams]

Sorry I'm new to the thread and I'm sure this has been covered but only find bits on this.
I have a 2021 Ram 1500 Lonestar 5.7 4x4 with 392 gears
I'm installing 2.5" level in front level with new rough country control arms, I have the OEM 22" rims and just got new Yokohama Geolander A/T G015 in 285/55r22's.
the tires. I believe the tire measure 34.6" tall and 11.5" wide. I know this will affect my speed calibration so I have been looking at programmers to set my speedo and there are a lot out there. I don't want to spend a lot of money and this will all I will be programming.
can I get some experience on this please.

 

[HSKR R/T]

Sorry I'm new to the thread and I'm sure this has been covered but only find bits on this.
I have a 2021 Ram 1500 Lonestar 5.7 4x4 with 392 gears
I'm installing 2.5" level in front level with new rough country control arms, I have the OEM 22" rims and just got new Yokohama Geolander A/T G015 in 285/55r22's.
the tires. I believe the tire measure 34.6" tall and 11.5" wide. I know this will affect my speed calibration so I have been looking at programmers to set my speedo and there are a lot out there. I don't want to spend a lot of money and this will all I will be programming.
can I get some experience on this please.

For the cheapest route, get alfaOBD and a SGW bypass and do it yourself. Can get everything needed for under $100. And with alfaOBD you have access to a lot of other things you can change.

 

[Choate]

Jscan app if you have an iPhone, the security bypass cable and a Bluetooth OBD2 scanner compatible with Apple. I’m about to do this too. I hope I know what I’m doing. PM me if you want

 

[EJ84]

Did you ever recalibrate your Speedo with Jscan?

 

[Choate]

Did you ever recalibrate your Speedo with Jscan?

Yes

 

[EJ84]

What scanner did you use? Is it as easy as it seems?

 

[Choate]

The jscan website lists ones they suggest. It’s as simple as it sounds. The only thing is when you do the recalibration for the tires you have to click at the top something like reset ECU for it to take and follow the instructions from there. Key off. Key on. You’ll just have to go through it. I can’t remember every single step but that’s it. I had zero issues.

 

[VectorZ]

The jscan website lists ones they suggest. It’s as simple as it sounds. The only thing is when you do the recalibration for the tires you have to click at the top something like reset ECU for it to take and follow the instructions from there. Key off. Key on. You’ll just have to go through it. I can’t remember every single step but that’s it. I had zero issues.

View attachment 122900

Did you measure your tires or just wing it?

 

[Choate]

Did you measure your tires or just wing it?

Took a ruler and laid it on top of the front tire. Measured from ground to the ruler. The app lets you go in 1/4” increments

 

[VectorZ]

Took a ruler and laid it on top of the front tire. Measured from ground to the ruler. The app lets you go in 1/4” increments

I'm having a hard time figuring out how to plug in the security bypass cable. There's a ton of different videos showing different locations. Can you tell me how to do it?

 

[Idahoktm]

I'm having a hard time figuring out how to plug in the security bypass cable. There's a ton of different videos showing different locations. Can you tell me how to do it?

Here's a thread with a pic I took of the security bypass module. Release the two security plugs and plug in your cable. The module is just to the left of the hood release cable.

Post in thread 'Where to plug in Autostop Eliminator 2021 RAM Laramie' https://5thgenrams.com/community/th...eliminator-2021-ram-laramie.36911/post-540124

 

[VectorZ]

Here's a thread with a pic I took of the security bypass module. Release the two security plugs and plug in your cable. The module is just to the left of the hood release cable.

Post in thread 'Where to plug in Autostop Eliminator 2021 RAM Laramie' https://5thgenrams.com/community/th...eliminator-2021-ram-laramie.36911/post-540124

You're my hero, thanks!

 

[VectorZ]

I was able to get in and make some changes, it looks like hundreds of different options are available. What have you all changed on your trucks?

 

[HSKR R/T]

I was able to get in and make some changes, it looks like hundreds of different options are available. What have you all changed on your trucks?

A lot of the options don't pertain to our trucks and do nothing

 

[VectorZ]

A lot of the options don't pertain to our trucks and do nothing

The app does show our trucks supported now.

 

[Idahoktm]

Speedometer calibration, tailgate open, seatbelt chime, performance and off-road pages. Here's a few of the results.

 

[VectorZ]

Speedometer calibration, tailgate open, seatbelt chime, performance and off-road pages. Here's a few of the results. View attachment 122988View attachment 122992View attachment 122993View attachment 122991

Good stuff, which section did you find the those pages? I don't see them.

 

[Idahoktm]

Good stuff, which section did you find the those pages? I don't see them.

I had to search through the AlfaOBD threads. I am still very new to AlfaOBD, so I can't remember the settings. There are a lot of smart guys on this forum that have posted very detailed instructions.

 

[VectorZ]

I had to search through the AlfaOBD threads. I am still very new to AlfaOBD, so I can't remember the settings. There are a lot of smart guys on this forum that have posted very detailed instructions.

Oh, I have Jscan so that's probably why.

 

[Jimmy07]

Oh, I have Jscan so that's probably why.

If using Jscan, choose a jeep gladiator JT for it’s adaptations, and off road pages should be under misc settings. You can find performance pages using Dodge Challenger adaptations.