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TrailCal for Jeep® JL Wrangler® - 41051-JL

Suggested retail: $488.95
Your Price: $439.95
Orders over $100 ship free. Orders placed before 2 PM MT will ship same day.

Product Accessories

Product Details

Saves factory setting and returns easily to stock

The TrailCal for JL Wrangler is an all-new, premium product. TrailCal offers monitoring, calibration, and control features without any modifications to the vehicle. Calibrate for larger aftermarket tires, adjust for gear ratio changes, and enjoy best-in-class monitoring and control features, all without popping the hood. TrailCal for JL also includes new, exciting features like Auto Start/Stop disable.

*Product includes module to use with the install. Refer to install guide.*

JL WranglerMonitor & Calibration Features:

Best-in-Class, 5", Full-Color, High-Resolution, Touch Screen
Custom Color Mixer for Gauge Arcs, Needles, & Backgrounds
Multiple Gauge Screen Layouts
Power Switch Gauge Screen to Engage LED Lights & Other Accessories
Fully Customizable Backgrounds
One Simple HDMI Plug for Power
Easy Menu Navigation
5" high definition touchscreen
Inclinometer gauges
Customizable digital gauges (Reads numerous PIDs)
Maintenance Manager (schedule and track maintenance)
Performance tests
Corrects speedometer for tire upgrades between 26- 40
Speedometer recalibration for gear /axle swaps
Swaybar disconnect
Engine idle adjustability for winching
Daytime running light options
TPMS On/Off and Adjust options

The monitor includes video input and can run backup or other camera accessories.

Internet updateable.

Hook up LIT aftermarket lighting or any aftermarket accessories using the EAS Power Switch!


Gear Ratio: 2.0-10.0
Low Gear Ratio: 1.0-15.0
Tire Size: 22.50-40.00
TPMS Threshold: 22-64 PSI
Daytime Running Lights
High Beams/Low Beams
Turn Signals/Fog Lights/Stock
Fog with High Beams
Idle Up: 800-2000 RPMs
One-Touch Turn Signal: ON/OFF
Swaybar Connect/Disconnect: ON/OFF
Auto Start/Stop: On/Off
Auto Traction Control: On/Off
Daytime Running Lights with Turn Signal: On/Off

Available Data Parameters:
Barometric Pressure
Engine Coolant Temp
Intake Air Temp
Engine RPM
Battery Voltage
Vehicle Speed
Fuel Remaining
Ambient Air Temp
Knock Sensor 1
Knock Sensor 2
Global Knock Sensor
Mass Air Flow
Spark Timing
Trans Fluid Temp
Gear (Auto Only)
Throttle Position
Corrected Speed
Mileage Inst.
Time 0 to 60
Time Quarter Mile
Mileage Avg.
Mileage Coach
Run Time
Trip Odometer
G-Force Lateral
G-Force Calculated
Percent Grade
Horse Power
Trans Fluid Temp (Calc)

You must configure your vehicle to view Product Features

TrailCal for Jeep® JL Wrangler® is rated 4.0 out of 5 by 1.
Rated 4 out of 5 by from Easy to install I bought this to recalibrate the speedometer after a 35” tire upgrade. It worked great! Got my shift points back to normal. Wish the rubicon setting worked for all jeeps.
Date published: 2018-10-18
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can i adjust when the cooling fan comes on like i can on my jk

Asked by: jeep jl
We do not offer cooling fan control on the JL
Answered by: Anthony M
Date published: 2019-02-26

Can you read and clear diagnostic codes with this?

Asked by: JohnFrank
Yes you can
Answered by: Anthony M
Date published: 2018-09-26

Anthony answered a previous question, that the TrailCal does not have any performance tunes because they are still working on them. Does that mean we would be able to download them for free when they are available for the TrailCal?

Asked by: Gadgetguru
You will be able to upgrade the cal into the dash once tuning is available but it will not be free. The Traildash will require an unlocked pcm in order to tune the engine (2015+) You will be able to do the upgrade for the difference in price once tuning is available
Answered by: Anthony M
Date published: 2018-09-11

Does this tuner have performance tunes on it?

Asked by: Mikeyt
No we are still working on the engine tuning for the 18 jk and Jl
Answered by: Anthony M
Date published: 2018-09-05

Can it adjust throttle sensitivity or do you still need to buy the Amp'd?

Asked by: Gadgetguru
If you are wanting to adjust throttle sensitivity you can add the Ampd. You will notice more response with our tuning alone but the ampd will give you more adjustment for the throttle
Answered by: Anthony M
Date published: 2018-09-07

I have a TrailCal PN 41051 says 15-17 Jeeps but was using in on a 2018 JK. It was just purchased a few months ago. Would this be the same one that would work on the JL?

Asked by: Casper2
You will need the 41051-JL for the 2018 JL. The actual module is the same but the only difference for the JL package is the bypass cable needed for 2018 Jl
Answered by: Anthony M
Date published: 2018-08-29

I have a jl with the 2.0 turbo motor,will this work on my jeep ?

Asked by: Brian12
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