AEV ProCal SNAP User manual

USER GUIDE | JL WRANGLER
AEV30348AA

1
2
3
4
5
6
1. INSTRUMENT CLUSTER DISPLAY CONTROL BUTTONS
2. INSTRUMENT CLUSTER DISPLAY
3. CRUISE CONTROL BUTTONS
4. STEREO DISPLAY
5. OBDII PORT
6. ENGINE START/STOP BUTTON
OVERVIEW
The AEV ProCal SNAP is a simple, easy to use electronic
recalibration module for 2018+ Jeep JL model Wranglers.
ProCal SNAP has the ability to recalibrate your vehicle’s
speedometer to compensate for non-factory tire sizes,
replacement axle gear ratios and aftermarket or dierent
transfer case gear ratios by simply plugging into the OBDII
diagnostic port and inputting the numerical values using the
stereo’s audio equalizer.
PLEASE read these instructions completely before
attempting to use this module. Follow these order of
operations:
1. Install the included AEV JL ProCal Harness (PN 30301046)
using instructions from aev-conversions.com.
2. Pair ProCal SNAP to the vehicle.
3. Recalibrate vehicle with ProCal SNAP
NOTE: The ProCal SNAP does not record the changes into
your vehicle’s history with FCA/Jeep. Any Warranty or Recall
that requires a re-programming of the modules may erase
the ProCal SNAP settings and require you to use the ProCal
SNAP to adjust your settings again.

BRAKE
SET+
SET-
RES
CANC
Wait for a blinking GREEN
light on the SNAP and a
blinking BRAKE light on the
speedometer.
With your foot on the
brake, PRESS and HOLD the
CRUISE ON/OFF button for
3 SECONDS.
HONK! HONK! HONK! When the pairing process is
complete, the horn will sound quickly 3 times. Your
ProCal SNAP is now paired and ready to recalibrate
your vehicle.
+
34
5
PAIR PROCAL SNAP TO VEHICLE
R
U
N
START
ENGINE
STOP
Insert ProCal SNAP into the
OBDII port.
1 2
Press 2 times to put into the
“RUN” position.
NOTE: The ProCal SNAP must be paired to a vehicle before
it will recalibrate any settings. Once completed, the ProCal
SNAP will be permanently locked to this vehicle.

ACTUAL MEASURMENT
TO THE NEAREST 10th IN.
PROGRAMMING VEHICLE
Once the pairing process has been completed, you are ready
to recalibrate your vehicle. Use the following method to
recalibrate Tire Size, Axle Ratio, or Transfer Case Ratio.
To recalibrate Tire Size: Begin by physically measuring your
tire diameter IN INCHES from the ground to the top of front
tire with the vehicle level and on the ground.
Recalibrating gear ratios is only necessary if you have
physically changed the vehicle’s axle gears or replaced the
transfer case with a dierent ratio. Press 2 times to put into the
“RUN” position.
Insert ProCal SNAP into the
OBDII port.
Wait for a solid GREEN light
on the SNAP.
2
R
U
N
START
ENGINE
STOP
1
3

+
–
+
–
+
–
  


+


+
Tr e b
—
Mid
—
Bass
—
Tr e b
+
Mid
+
Bass
+
+3
+4
+2
+
–
+
–
+
–
  


+


+
Tr e b
—
Mid
—
Bass
—
Tr e b
+
Mid
+
Bass
+
+3
+4
+2
Adjust the stereo’s EQUALIZER SETTINGS to the values you
wish to set.
• Example A: 34.2” Tires, Bass = 3, Mid = 4, Treb = 2.
• Example B: 4.10 Axle Ratio, Bass = 4, Mid = 1, Treb = 0.
• Example C: 3.80 T-Case Ratio, Bass = 3, Mid = 8, Treb = 0.
Note that some stereos display EQ horizontally with Bass at
the bottom. It is important to remember all settings must be
entered in the correct order, Bass, Mid, Treb.
4
UCONNECT 4 and 4C (Example A shown) UCONNECT 3 (Example A shown)

SET+
SET-
RES
CANC
SET+
SET-
RES
CANC
SET+
SET-
RES
CANC
+
+
+
SET TIRE SIZE
SET AXLE RATIO
SET TRANSFER
CASE RATIO
To program the EQ values to the vehicle settings,
press the corresponding combination below.
PRESS and HOLD for 3 SECONDS. Programming is
complete when the horn sounds twice.
BRAKE PEDAL
BRAKE PEDAL
BRAKE PEDAL
SET +
CRUISE ON/OFF
SET –
5VIEW SETTINGS
If you wish to view the current settings, you can do so on the
Instrument Cluster Display. Insert the ProCal SNAP into the
OBDII port. Turn the radio o and use the Instrument Cluster
Display Control Buttons to navigate to AUDIO. The Instrument
Cluster Display will cycle through showing the current setting
for Tire Diameter, Axle Ratio, and 4Low Ratio.

DIAGNOSTIC CODES
BLINKING GREEN: ProCal SNAP ready to pair
SOLID GREEN: ProCal SNAP paired and ready
SLOW PULSING ORANGE: Waiting for vehicle ignition
to be turned to RUN.
SLOW PULSING BLUE: Inserted into incorrect vehicle.
FAST PULSING ORANGE: No connection. Check that
the harness is properly installed.
FAST PULSING BLUE: There has been an error in
programming. Turn the radio o. Use the Instrument
Cluster Display Control Buttons to navigate to AUDIO.
Record the error message and contact AEV support
with the information shown.
ADDITIONAL FUNCTIONS
To use ProCal SNAP to clear DTC codes or restore your
vehicle’s factory settings, follow programming steps 1 and 2
then PRESS/PULL and the combinations below and HOLD for
3 SECONDS.
SET+
SET-
RES
CANC
SET+
SET-
RES
CANC
+
+
+
+
CLEAR DTC CODES
RESTORE FACTORY SETTINGS
BRAKE PEDAL
BRAKE PEDAL
RES
CRUISE ON/OFF
PULL HIGH BEAM
PULL HIGH BEAM

Q: No light on the ProCal SNAP.
A: Contact Support.
Q: The light was solid green, I attempted to program
something, there was no honk and now the ProCal SNAP has a
fast pulsing blue light.
A: Turn the radio o. Use the Instrument Cluster Display
Control Buttons to navigate to AUDIO. Record the error
message and contact AEV support with the information shown.
Q: What if I don’t have a factory stereo?
A: Contact AEV support, some aftermarket radios could still
function properly. We’ll be able to advise you before trying.
AEV Customer Support: [phone]
Email: [email protected]
TROUBLESHOOTING INCLUDED PARTS
AEV PROCAL SNAP
AEV JL PROCAL HARNESS

AEV-CONVERSIONS.COM
©2019 American Expedition Vehicles WRANGLER® is a registered trademark of FCA US, LLC