Using OBD JSCAN to Re-Calibrate Jeep Speedometer After Tire Upgrade

So you put new bigger tires on your Jeep, but now the speedo is off, right? Well there's a pretty cool app you can get that will let you fix it!
JSCAN Website: jscan.net/
Download iOS: itunes.apple.com/pl/app/obd-j...
Download Android: play.google.com/store/apps/de...
Compatible OBD Adapters: jscan.net/supported-and-not-s...
Amazon Affiliate Links:
OBDLink LX (Android Only): amzn.to/484pClj
OBDLink MX+ (recommended for Android & iOS): amzn.to/3w3OyvT
OBD2 Bluetooth Sensor Review: • OBDLink Bluetooth OBD2...
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[@garyandtricia1]

This is really well done.

[@rhynosgarage]

Thanks!

[@GoldenK9Campers]

Awesome video.. one of the best i've seen. What was the website that you we're using that compared the different tire diamaters and the affect on the speedometer? That was so cool.

[@rhynosgarage]

The one I used here was tiresize.com/calculator/

[@GoldenK9Campers]

@@rhynosgarage Thanks so much !! Great stuff. Keep up the good work !!

[@travisyuga]

I saw another video that stated you should adjust your axle ratio after putting in your new tire size. Do you how to determine what your axle ratio should be set at?

[@rhynosgarage]

Not just for tire changes. I think only if you change axles or gears.

[@travisyuga]

@@rhynosgarage got it, thanks for taking the time to get back to me!

[@edmundofguimaraes]

Tenho pneu 33x12.50r17 com lift de 2".....queria saber se tenho que configurar para 35"?

[@rhynosgarage]

Sorry man...not sure I'm picking up what your saying. But I think you're asking if you have to do anything from 33" to 35" tires. Yes, you would.

[@teon39]

You forgot about the cable needed to bypass the security gateway under the dashboard.

[@rhynosgarage]

What cable? There wasn't one on this model. The newer FCA vehicles need a special adapter for scanners to work I think, but that wasn't the case in the JKs.

[@teon39]

@@rhynosgarageDoesn’t your JK have a security gateway module?

[@rhynosgarage]

@@teon39 No they added that in...I think...2018 on the Wranglers. It was definitely in the JL series, not the JK's.