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Home >> Jeep >> 2007 >> Liberty Limited, 4WD, Part Time >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Electrical Diagnostics - Pcm & ECM Programming - Gas - Powertrain Verification Test >> Standard Procedure >> Pcm/ECM Programming - Gas >> Repair Procedure Using Software Update Cd To Retrieve The Flash File:

Repair Procedure Using Software Update Cd To Retrieve The Flash File:

NOTE: If this flash process is interrupted/aborted, the flash should be restarted.
NOTE: For detailed information on the operation of the StarSCAN® or equivalent, refer to the Quick Reference documentation provided in the StarSCAN® or equivalent documentation kit. In addition, more recent information may also be available at the www.dcctools.com website. Look under Training Aids and also under Download Center > Frequently Asked Questions for more help.
  1. Open the hood, install a battery charger and verify that the charging rate provides approximately 13.5 volts. Set the battery charger timer to maintain the charging voltage for the duration of the flash process.
  2. Connect the CH9404 StarSCAN® or equivalent vehicle cable to the StarSCAN® or equivalent and the vehicle.
  3. Power ON the StarSCAN® or equivalent.
  4. Retrieve the old ECU part number. Using the StarSCAN® or equivalent at the "Home" screen:
    1. Select "ECU View"
    2. Touch the screen to highlight the PCM in the list of modules.
    3. Select "More Options"
    4. Select "ECU Flash"
    5. Record the part number at the top of the "Flash PCM" screen for later reference.
  5. Replace the PCM with the appropriate Generic PCM. Refer to the detailed service information available in TechCONNECT, under REMOVAL .
  6. Insert the StarSCAN® or equivalent Software Update CD into the TechCONNECT or equivalent PC. The StarSCAN® or equivalent Software Update CD will start automatically. Select "Download Flash Updates".
  7. At the "Select a method for looking up controller flash updates.  " screen:
    1. Select "Enter part number". Enter the "Part Number" recorded in step 4  e when prompted to do so.
    2. Using the mouse highlight the appropriate "Calibration". Select "Next".
    3. Follow the on screen instructions.
    4. When completed, proceed to step  8.
  8. With the StarSCAN® or equivalent powered OFF, connect the USB Key and Gender Changer to the StarSCAN® or equivalent USB port. See Fig 1.
    Fig 1: USB KEY, GENDER CHANGER, AND StarSCAN® Or Equivalent TOOL
    GC0048709Courtesy of CHRYSLER LLC
  9. Connect the StarSCAN® or equivalent to the vehicle (if not already connected).
  10. Power ON the StarSCAN® or equivalent.
  11. Download the flash file from the USB key to the StarSCAN® or equivalent. Using the StarSCAN® or equivalent at the "Home" screen:
    1. Select "Flash Download", then select "Retrieve files from the USB storage device"
    2. Highlight the appropriate calibration. Select "Download to Scan Tool"
    3. When the download is complete, select "Close" and "Back".
  12. Reprogram the ECU. Using the StarSCAN® or equivalent at the "Home" screen:
    1. Select "ECU View".
    2. Select More Options".
    3. Select "ECU Flash".
    4. Highlight the appropriate calibration.
    5. Select "Update Controller". Follow the on screen instructions.
    6. When the update is complete, select "OK".
    7. Verify the part number at the top of the "Flash PCM" screen has updated to the new part number.
  13. Is "WCM - Wireless Control Module" displayed in the "ECU Overview" screen list of modules?
    1. Yes >> go to step  14.
    2. No >> go to step  15.
  14. Program the PCM to the Wireless Control Module (WCM). Using the StarSCAN® or equivalent at the "Home" screen:
    1. Select "ECU View"
    2. Scroll through the list of controllers and highlight the WCM.
    3. Select "Misc. Function".
    4. Highlight "PCM Replaced".
    5. Select "Start"
    6. Follow the on screen instructions. Select "Next" after each step. Select "Finish" after completing the last step.
    7. When complete proceed to step  16.
  15. Program the VIN into the PCM.
    1. Scroll through the list of controllers and highlight the PCM.
    2. Select "Misc. Function".
    3. Highlight "Check PCM VIN".
    4. Select "Start"
    5. Follow the on screen instructions. Select "Next" after each step. When the window appears with 17 boxes, select "Show Keyboard". Place the cursor to the right of the last box and then backspace to delete the boxes from the window. Enter the VIN. Select "Finish" after completing the last step.
    6. Unplug the scan tool from the Data Link Connector.
    7. At the "Vehicle Disconnected" screen, press "OK".
    8. Connect the scan tool to the Data Link Connector and verify that the VIN is visible at the top of the "Home" screen.
  16. Is the vehicle equipped with a 3.7L or 4.7L engine?
    1. Yes >> go to step  18.
    2. No >> go to step  17.
  17. Using the StarSCAN® or equivalent at the "Home" screen:
    1. Select "ECU View"
    2. Scroll through the list of controllers and highlight the PCM.
    3. Select "Misc. Function".
    4. Highlight "Learn ETC".
    5. Select "Start"
    6. Follow the on screen instructions. Select "Next" after each step. Select "Finish" after completing the last step.
    NOTE: Due to the PCM programming procedure, a DTC may be set in other modules (TCM, BCM, MIC, SKIM, etc.) within the vehicle, if so equipped. Some DTC's may cause the MIL to illuminate. Check all modules using "ECU View" from the Home screen, record the DTC's, and erase these DTC's prior to returning the vehicle to the customer. Erase any DTC's in the PCM only after all other modules have had their DTC's erased.
    NOTE: The following step is required by law.
  18. Type the necessary information on the "Authorized Modification Label" p/n 04275086AB and attach near the VECI label. See Figure.
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