AEV ProCal Module

AEV ProCal Module
AEV ProCal Module

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Vehicle Fitment

2007-2017 Jeep Wrangler JK & Wrangler Unlimited JK

See Product Details Below

Part Number:
AEV-30406007AG AEV
Our Price:

$170.00 Guaranteed Lowest Price

+ Free Shipping*

In Stock

In stock, Ships Monday

Customer Reviews:
5 2

* This product is excluded from all promotions.

Product Name:

AEV ProCal Module

Important Notes:

  • Sold individually
  • WILL enable axle gear ratio changes to be made to JK models equipped with A580 automatic transmission (2011+ 2.8L, 2012+ 3.6L).
  • CANNOT change axle gear ratios for 2011+ JK models with a 2.8L CRD diesel and a manual transmission.
  • Transfer Case Calibration function allows you to install a non-stock transfer case onto 2012+ JK models with a A580 transmission without causing the vehicle to go into limp mode. This includes 2-speed Atlas transfer cases as well as Chrysler's Command-Trac NV241 and Rock-Trac NV241 transfer cases.


  • 2007-2017 Jeep Wrangler JK
  • 2007-2017 Jeep Wrangler Unlimited JK


The AEV ProCal Module allows you to make a variety of useful changes to your Wrangler JK that are not offered by the dealer or any other re-programmer. It gives you the ability to correct the speedometer and gear ratio when larger tires are installed. This is especially useful because when the speedometer is left uncorrected there is a major degradation in the performance of the stability control (ESP), transmission shifting, and overall engine performance. The Tire Pressure Monitoring System can also be re-calibrated to better suit aftermarket tires without triggering the dash light. This module can also activate daytime running lamps, allow for "one-touch" turn signals, clear engine codes, enable a temporarily increased engine idle speed for winching, and can help alignment technicians align the vehicle perfectly for optimal ESP performance. It is equipped with a series of easy-to-use DIP switches that can be set before plugging the module into your Jeep's OBDII. The included Quick Reference Guide has all of the codes for desired re-calibration. It takes only minutes to complete the entire process and is just as easy to restore the vehicle back to its original settings.

Product Details:

  • Corrects your speedometer
  • Easy to use DIP switches
  • Optimizes ESP performance
  • Ability to clear engine codes
  • Can increase engine idle speed
  • Recalibrates tire pressure monitor
  • Transfer case calibration available
  • Allows for "one touch" turn signals
  • Takes around 10 minutes to install
  • Made in the USA

Parts Included:

  • (1) AEV ProCal Module
  • Instruction Manual
  • DIP Instruction Sheet

Years Covered:

2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 and 2017

*Some Items may require additional shipping surcharges such as Oversize Freight and Truck Freight items.

Verified Buyer 01/23/2017
5 out of 5 stars

Great Service

Arrived as expected and on the date promised. Morris 4X4 Center is greeat to work with. Haven't had a chance to try the unit yet due to not having the new wheels and tires on the Jeep.
Verified Buyer 12/18/2016
5 out of 5 stars

Muy bueno