B. Reprogram the CCN Module Using StarSCAN

NOTE:
The StarSCAN tool must be at version 7.03 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.

NOTE:
Replacement instrument clusters will already contain the latest software and do not require reprogramming.

1. Open the hood and install a battery charger. Verify that the charging rate provides approximately 13.5 volts.

2. Use the following procedure to determine the CCN Control Module software part number:

a. Connect the StarSCAN to the vehicle data link connector located under the steering column and turn the ignition key to the "RUN" position.

b. Power ON the StarSCAN.

c. From the StarSCAN Home Screen, select "ECU View".

d. From the StarSCAN ECU View Screen, select "CCN" from the list of modules.

e. Select "More Options" and then select "ECU Flash"

f. Record the part number displayed at the top of the "Flash CCN" screen for later reference.

3. Connect the CH9410 StarSCAN ethernet cable to the StarSCAN and the dealer's network drop.

4. Select "Browse for New File" and follow the on screen instructions.

5. Highlight the calibration and then select "Download to Scantool".

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

7. Highlight the listed calibration.

8. Select "Update Controller" and follow the screen instructions.

9. When the CCN update is complete, select "OK".

10. Verify the part number (resident flash file) at the top of the screen has updated to the new part number.

11. Vehicles equipped with overhead temperature display, place the ignition key in the "Run" position and observe temperature reading at the overhead console display window.

If the temperature reading matches approximately ambient temperature, proceed to Step 12.

If the temperature reading is -40 degrees, place the ignition key in the "Off" position and disconnect the negative battery cable from the battery for 10 seconds, then reconnect the negative battery cable. This will reset the overhead temperature reading.

12. Perform the following procedure to initiate the new cluster self diagnostics for the dome lamp circuit:

a. With all other doors closed, open the driver's side door.

b. Verify that the dome lamps are "On".

c. Turn the ignition to the "RUN" position.

d. Close the driver's side door.

e. Verify that the dome lamp goes off after approximately 3 seconds.

f. Turn the ignition to the "OFF" position.

e. Repeat steps a. through f. two more times.

> If the dome lamp operates correctly after three cycles, proceed to Step 13.

> If the dome lamp stops functioning, the self diagnostics found an additional problem in the cluster that was not detectable with the ohmmeter test previously performed. Replace the cluster assembly.

13. After completing the CCN reprogramming, performing the cluster self diagnostic test and resetting the overhead temperature display, clear all Diagnostic Trouble Codes (DTC's) using the following procedure:

a Return to the "Main Menu" (Home Page)

b. Select "System View"

c. Select "All DTC's

e. Select "Clear All Stored DTC's"

f. Follow the screen prompts.

14. Disconnect and remove the StarSCAN and battery charger from the vehicle.

15. Continue with Section D. Install Instrument Cluster.