Envoy 4WD V8-5.3L VIN P (2004)
6. Follow the menu select items for reprogramming and provide information as to what type of device you are programming and whether you are
reprogramming or replacing the Electronic Control Unit (ECU).
7. Select "vehicle" from the selection menu.
8. Select the module you wish to Program.
9. Select "Normal" for Programming Type.
10. Select the applicable software calibrations.
11. Transfer data file to the scan tool.
12. Reconnect the scan tool to the vehicle.
13. Turn ON the ignition, with the engine OFF.
14. Select the Service Programming feature on the scan tool.
15. Press the Program button on the scan tool.
Programming Using Scan Tool Pass-Through Connection
1. Connect the scan tool to vehicle and power it up.
2. Connect the computer station to the scan tool.
3. Select "PC Using Scan Tool Connection" from the programming menu on the computer station.
4. Follow the menu select items for reprogramming and provide information as to what type of device you are programming and whether you are
reprogramming or replacing the Electronic Control Unit (ECU).
5. Select "vehicle" from the selection menu.
6. Select the module you wish to program.
7. Select "Normal" for Programming Type.
8. Select the applicable software calibrations.
9. Transfer data file to the scan tool.
