OBD JScan

In-app purchases
4.7
1.53K reviews
100K+
Downloads
Content rating
Everyone
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About this app

What is OBD JScan?

OBD JScan is powerful Jeep diagnostic application. JScan allows reading standard Diagnostic Trouble Codes (emission related), Generic Live Data and much more. That's not all. JScan can access all modules avilable on your vehicle. ABS, Steering Column, Automatic Transmission, Radio, Sway Bar, Hvac and much more.

What can I Do with JScan?
JScan allows you to access, diagnostic trouble codes and Live Data in all modules. You can easily Read, Clear, Share vehicle Trouble Codes. View Live Data from all sensors in vehicle. View and Change vehicle settings like tires size, axle ratio, DRL Settings, and more. Identify modules, VIN, Part Number.

Some supported cars:
Jeep Wrangler JK,
Jeep Wrangler JL/JT - additional hardware required to bypass security gateway*
Jeep Grand Cherokee WK
Jeep Grand Cherokee WK2 11-13
Jeep Grand Cherokee WK2 14-20 - 18+ - additional hardware required to bypass security gateway*
Jeep Commander XK
Jeep Liberty/Cherokee KK,
Jeep Compass, Jeep Patriot MK

Dodge Avenger,
Dodge Grand Caravan RT,
Dodge Journey - 18+ - additional hardware required to bypass security gateway*,
Dodge Caliber,
Dodge Durango 2004-2009,
Dodge Durango 2011-2013,
Dodge Durango 2014-2020 - 18+ - additional hardware required to bypass security gateway*,
Dodge Ram,
Dodge Nitro,
Dodge Magnum,
Dodge Challenger - 08-14,
Dodge Challenger - 14+,
Dodge Charger - 06 - 10,
Dodge Charger - 11+,

Chrysler Town & Country RT,
Chrysler 200,
Chrysler 300C,
Chrysler 300,
Chrysler Sebring,
Chrysler Aspen,
and more..

* WK2 / Durango/ Journey - all 2018+ models requires securit bypass cable
* JL requires security bypass cable
* JT requires security bypass cable
* http://jscan.net/jl-jt-security-bypass/ - learn more here

Supported and recommended OBD ELM327 adapters:
Bluetooth:
- OBD ELM327 iCar Vgate v2.0 Bluetooth.
- OBD ELM327 iCar Vgate v3.0 Bluetooth.
- OBD ELM327 iCar Vgate v4.0 Bluetooth LE - this adapter will also work with iOS
- OBD LinkMX Bluetooth
- OBD LinkMX+ Bluetooth

- OBD adapters based on STN1170 chip

WiFi:
- OBD ELM327 iCar Vgate v2.0 WiFi.
- OBD ELM327 iCar Vgate v3.0 WiFi.
- OBD ELM327 iCar Vgate v4.0 WiFi.

Warning!!! There are reports on connection issues when using some cheap "clones" of ELM327 (mostly marked as v2.1)!

More info about supported and recommended adapters:
http://jscan.net/supported-and-not-supported-obd-adapters/

Facebook:
https://www.facebook.com/obdjscan/

Website:
http://jscan.net/
Updated on
Aug 4, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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4.7
1.53K reviews
A Google user
February 4, 2020
I don't usually post review but this app deserves one. It allows you to change tire air pressure sensor and tire size/drive ratio settings to accommodate changes you've made to your vehicle. It also has tons of other options and modules that can be activated and deactivated through the app. If your not sure it will do what you need d/l it and browse the demo. It does require a OBD2 adapter, but they're inexpensive. 100% worth the price. A big thanks to the developers.
25 people found this review helpful
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A Google user
July 4, 2019
What a difference an app makes! I drive a 2011 JKU with 35 inch tires and a 3.5" dealer installed lift. Always wondered if the computer onboard the Jeep was updated after the lift, which I found out is was not via this app. Using a GPS to determine the actual speed, I found it was 4MPH too fast. I then adjusted the actual speed to be correct using the app. It is AMAZING what the change did by simply correcting for the 4MPH caused by the tire size. It is abundantly obvious that the (auto) transmission shifts when it should now as compared to not shifting as it should before. The Jeep runs so much smoother and fuel economy has improved. All the other app features are great, but I am so thrilled for this easy and quick adjustment.
15 people found this review helpful
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A Google user
March 30, 2019
Most user friendly programmer - a little buggy I would easily give this app 5 stars if it weren't so buggy. Had problems communicating with ECM using recommended iCar module. Communication tests fail. I have to delete app and reinstall after each use, then re-pair module. A little frustrating, but when working this app is absolutely amazing!! Adding presets such as economy, power, etc. would put the icing on the cake. Thank you to the developer for their work on this!
6 people found this review helpful
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What's new

04.08
- Maintenance update
24.07
- HVAC - Calibration
15.07
- Missing Trouble Codes Description update
- ABS Pump Brake Bleed procedure - WK2 2011-2014
12.07
- ACC - calibration GC2, Durango, Challenger, Charger
01.07
- Key Programing update for Dodge Ram
30.06
- HVAC - Calibration
- UI icon update
22.06
- Trail View Transmission bug fix
21.06
- Key programing bug fix for Durango HB
02.06
- ELSD - Quick Learn update
25.05
- AFLS - Calibration
24.05
- EPB - procedures for Ram DT and Pacifica RU