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
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OBD2 Bluetooth Sensor Review: • OBDLink Bluetooth OBD2...
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[@garyandtricia1]

This is really well done.

[@rhynosgarage]

Thanks!

[@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!

[@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.