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.
Repair Procedure - Using STARMOBILE® Desktop Client
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 StarMOBILE® to the vehicle data link connector located under the steering column and turn the ignition key to the "RUN" position.
- Power on the StarMOBILE®. Launch the StarMOBILE® Desktop Client and connect to the appropriate StarMOBILE® device.
- Retrieve the old ECU P/N. From the StarMOBILE® Home screen:
- Select "ECU View"
- Select "PCM"
- Select "More Options"
- Select "ECU Flash"
- Record the P/N at the top of the Flash PCM screen for later reference.
- Program the ECU. From the StarMOBILE® Home screen:
- Select "ECU View"
- Select "PCM"
- Select "More Options"
- Select "ECU Flash"
- Select "Browse for New File" and follow the on screen instructions.
- Highlight the appropriate calibration based on the P/N recorded in Step 4e, or by using Year/Model/Engine and appropriate emissions selection for the vehicle being worked on.NOTE:
If the tool is not connected to the vehicle, flash files can be searched for by selecting the "Flash Download" button from the Home screen.
- Select "Download to 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 update is complete, select "OK".
- Verify that the P/N at the top of the Flash PCM screen has updated to the new part number.
NOTE:If the flash process is interrupted or aborted, the flash should be restarted.
- Continue to SECTION 2 - ADDITIONAL PCM/TCM REPLACEMENT PROCEDURES 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 SECTION 3 - AUTHORIZED MODIFICATION LABEL for details).
NO RELATED
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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.