FIRST START UP AND STOCK TUNE READ INSTRUCTIONS

*HP Tuners recommends using a battery tender set to 12.5 volts or more for reading and programing your ECU, I have tuned hundreds of vehicles without a battery tender without issue so long as you have at least 12.0 volts.  Up to you on if you want to use one or not, just know that if voltage gets too low, you could brick an ECU 

*You may notice a check engine light on first start up, don’t worry about it! It’ll go away, the multiple codes are all related to the ECU being disconnected.

1.      Grab your PC, MPVI4, and included USB-C cable. 

2.      Go to HP Tuners and download the LATEST BETA OF VCM SUITE, install it. DO NOT USE THE “STABLE” VERSION, DON’T EVEN INSTALL THE STABLE VERSION!

3.      Open VCM Scanner (yellow lightning bolt icon, you may have to search for it)

4.       Plug your MPVI4 into your OBD2 port, then plug your USB-C cable into it and your PC. If you don’t have a USB-C port on your PC, make sure you use a quality adaptor or other traditional USB cord that has DATA CAPABILITY, a cheapo cord will cause issues.

5.      Turn your key to the “ON” position WITHOUT STARTING THE ENGINE (two pushes on the button with foot off the brake, all dash lights should come on)

6.      Click the blue vehicle icon to “Connect to Vehicle”

7.      Click the orange check engine light for “Diagnostics and Info”

8.      Read DTCs, various codes relating to throttle body and other circuits is normal.

9.      Clear DTCs. Some may remain as “permanent” but they will go away eventually with some drive cycles if they don’t clear right away. This is NOT AN ISSUE.  Nothing is wrong with your Jeep and this happens on every one.

10. Start engine and ensure CEL is off, if it is on, you may still have DTCs displayed as permanent or pending, this is normal!! It should clear with drive cycles or after we flash your new tune.

11. Turn Engine Off

12.  Close VCM Scanner and open VCM Editor (Grey wrench icon).

13.  With Key On but the Engine Off, Click the “Read Vehicle” button (Black with green arrow).

14. Click “Gather Info”, it will determine what PCM and TCM you have

If your OS is newer and not defined by HP Tuners, these boxes will be empty or blank, if this is the case you just have to manually select your PCM and TCM.  Scroll and find Stellantis GPEC2A or GPEC5 as needed.  For TCM, select Dodge ZF8HP2.

15. Click “Read”.

16. When the Read is done, SAVE THAT FILE!!!! THIS IS YOUR STOCK/AS FOUND READ. You can flash back to stock at any time with this file if you chose to do so.

17. Email me that .HPT read file.  I will build your tune from that.

18. You can drive your Jeep as normal while waiting for me to send your tune.

FLASHING YOUR NEW CUSTOM TUNE

Again, ensure your battery is healthy, battery tender is recommended but not absolutely required during flash/read process

1.      Plug the interface cable into the vehicle's OBD-II port. Connect the other end to your PC's USB port. 

2.      Open VCM Editor. Open the tune file I sent you.

3.      Select Write Vehicle from the Flash menu.

NOTE: The first time you attempt to write to each vehicle, you will be prompted to purchase a license for that vehicle, if already purchased credits, you apply them at this time.

4.      Turn the vehicle ignition to the ON (or RUN) position, but do not start the engine.

5.      Make sure the doors are closed and all accessories are turned off. CAUTION: Do not use any vehicle accessories, including the door locking mechanism, during reading or writing procedures.

6.      Wait 10 to 15 seconds.

7.      Make sure ‘write calibration’ is selected for both the PCM and TCM if you’re an automatic. 

IF YOU ARE AN ETORQUE MODEL, CLICK ‘WRITE ENTIRE!’

8.      Click “Write” and follow the prompts on the screen. Don’t worry about any voltage messages unless you are under 12.0 volts.

9.      After the flash process is complete, exit out of VCM Editor.

10.  For eTorque only – Open VCM Scanner and read and clear DTCs as previously described above.  This MUST be done or your engine may not run properly.  This only applies to eTorque.  The codes may remain after clearing, don’t worry, they will go away with driving, we just need to make sure the check engine light itself is off after first start up.