FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Service Procedure

Program the ECM

NOTE:
This procedure must be performed using StarSCAN with release 9.04
or higher before this procedure can be performed. The software release level is visible in the blue header at the top of the StarSCAN screen. If the flash is aborted or interrupted, repeat the procedure.

1. Open the hood. Install a battery charger and verify that the charging rate provides 13.0 to 13.5 volts. If the battery charger is timer controlled, set the battery charger to continuous charge. Do not allow the charger to time out during the flash process.

NOTE:
Use an accurate stand alone voltmeter. The battery charger volt
meter may not be sufficiently accurate. Voltages outside of the specified range will cause an unsuccessful flash. If voltage reading is too high, apply an electrical load by activating the park or headlamps and/or HVAC blower motor to lower the voltage.

2. Remove the OBD/fuse cover located at the lower left side of the steering column and open the black plastic cover of the data link connector. Connect the CH9404D vehicle cable to the StarSCAN and the vehicle data link connector.

3. Turn the ignition key to the "RUN" position.

4. Power "ON" the StarSCAN.

5. Retrieve the old ECM part number. With the StarSCAN on the "Home" screen, follow the procedure below:

a. Select "ECU View".

b. Touch the screen to highlight "ECM" in the list of modules.

c. Select "More Options".

d. Select "ECU Flash".

e. Record the "Part Number" displayed at the end of the "Resident flash file for" statement near the top of "Flash ECM" screen for later reference.

6. Download the flash file from the internet to the StarSCAN. With the StarSCAN on the "Flash ECM" screen, follow the procedure below:

a. Select "Browse for New File". Follow the on screen instructions.

b. If the newly downloaded flash file "Part Number" description is the same as the number recorded in Step 5e, then the ECM is up to date. Continue to Step 10.

c. Highlight the listed calibration on the StarSCAN screen.

d. Select "Download to Scantool".

e. Select "Close" after the download is complete, then select "Back".

f. Highlight the listed calibration.

g. Select "Update Controller" and follow the on screen instructions.

h. When the update is completed, select "OK".

7. Disconnect the CH9404D StarSCAN vehicle cable from the vehicle. Wait until the StarSCAN screen reads "Vehicle Disconnected", then press "OK".

8. Reconnect the CH9404D StarSCAN vehicle cable to the vehicle.

9. Retrieve the ECM part number. With the StarSCAN on the "Home" screen, follow the procedure below:

a. Select "ECU View".

b. Touch the screen to highlight "ECM" in the list of modules.

c. Select "More Options".

d. Select "ECU Flash".

e. Verify the "Part Number" (displayed at the end of the "Resident flash file for" statement) has been updated to the new part number. If it has updated, then the flash has been completed successfully.

10. Clear any Diagnostic Trouble Codes (DTCs) as follows:

NOTE:
Due to the ECM programming procedure, DTC(s) may be set in other modules (TCM, ABS, BCM, MIC, WCM, etc.) within the vehicle, if so equipped. Some DTC's may cause the MIL to illuminate.

a. From the "Home" screen select "System View".

b. Select "All DTCs".

c. Press "Clear All Stored DTCs" if there are any DTCs shown on the list.

11. Turn the ignition key to the "OFF" position.

12. Remove the StarSCAN unit, StarSCAN cable and battery charger from the vehicle.

13. Close the black plastic cover of the data link connector and install the OBD/fuse cover.

14. Return the vehicle to the customer.

Install the Authorized Modifications Label:





1. Type or print (with a ballpoint pen) the recall number, repair
modification, dealer code and date Reprogram Engine Control Module
on the Authorized Modifications Label (Figure 1).

2. Attach the label near the VECI label and then close the hood.

3. Complete Proof of Correction Form for California Residents.

NOTE:
This recall is subject to the State of California Registration Renewal/Emissions Recall Enforcement Program. Complete a Vehicle Emission Recall Proof of Correction Form (Form No. 81-016-1053) and supply it to vehicle owners residing in the state of California for proof that this recall has been performed when they renew the vehicle registration.