Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSJEEP2014GRAND CHEROKEE LAREDO, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 21 (3.0L DIESEL NAFTA - INTERMITTENT DTC, PCM/ECM/TCM PROGRAMMING, PCM VERIFICATION TEST & PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE)STANDARD PROCEDUREPCM/ECM/TCM PROGRAMMINGREPAIR PROCEDURE - USING STARSCAN® OR STARMOBILE® DESKTOP CLIENT
2014 Jeep Grand Cherokee Laredo, AWD
Repair Procedure - Using STARSCAN® Or STARMOBILE® Desktop Client
2014 Jeep Grand Cherokee Laredo, AWDSECTION Repair Procedure - Using STARSCAN® Or STARMOBILE® Desktop Client
WARNING: This page is about a different variant/trim than selected.
NOTE:
If this flash process is interrupted or aborted, the flash should be restarted.
- Open the hood of the vehicle and install a battery charger. Verify that the charging rate provides a continuous charge of 13.2 - 13.5 Volts.
- Connect the StarSCAN® or StarMOBILE® to the vehicle data link connector located under the steering column and turn the ignition key to the "RUN" position.
- Power on the StarSCAN® or StarMOBILE®. If the StarMOBILE® is being used, launch the StarMOBILE® Desktop Client and connect to the appropriate StarMOBILE® device.
- Retrieve the old ECU part number. From the tool's Home screen,
- Select "ECU View"
- Select "PCM/ECM"
- Select "More Options"
- Select "ECU Flash"
- Record the part number at the top of the Flash PCM/ECM screen for later reference.
- Program the ECU as follows:
- Using the StarSCAN®/StarMOBILE® at the Home screen, select "ECU View"
- Select "PCM/ECM"
- Select "More Options"
- Select "ECU Flash"
- Select "Browse for New File" and follow the on screen instructions
- Highlight the appropriate calibration based on the part number recorded in Step 4 e , or by using Year/Model/Engine and appropriate emissions selection for the vehicle being worked on
- Select "Download to Client/Scantool"
- Once the download is complete, select "Close" and then "Back"
- Highlight the listed calibration, select "Update Controller" and follow the on screen instructions
- When the PCM/ECM update is complete, select "OK"
- Verify that the part number at the top of the Flash PCM/ECM screen has updated to the new part number
NOTE:If this flash process is interrupted or aborted, the flash should be restarted.
- Continue to complete the process if the ECU has been replaced.
- Type the necessary information on the "Authorized Modification Label" (p/n 04275086AB) and attach near the VECI label (See for details). Refer to SECTION 3 - AUTHORIZED MODIFICATION LABEL .
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.