Re-Calibrating Actuators - Primary

When replacing the HVAC control module it will be necessary to allow the HVAC control module to perform a re-calibration process. When installing the HVAC control module be sure to perform the following:
1. Place the ignition switch to the OFF position.
2. Disconnect the scan tool.
3. Install the HVAC control module.
4. Re-connect all previously disconnected components.
5. Place the ignition switch in the RUN position.
6. Wait 40 seconds for the HVAC control module to re-calibrate.
7. Verify that no DTCs have set as current DTCs.

When replacing the motor assembly it will be necessary to allow the HVAC control module to perform a re-calibration process. When installing the motor assembly be sure to perform one of the following:

Preferred Method (W/Scan Tool)
1. Clear all DTCs
2. Place the ignition switch in the OFF position.
3. Install the motor assembly.
4. Re-connect all previously disconnected components.
5. Place the ignition switch in the RUN position.
6. With the scan tool, initiate the Motor Re-calibration feature of the HVAC module Special Functions menu.
7. Verify that no DTCs have set as current DTCs.

Alternate Method (W/O Scan Tool)
1. Clear all DTCs
2. Place the ignition switch to the OFF position.
3. Disconnect the scan tool.
4. Install the motor assembly.
5. Re-connect all previously disconnected components.
6. Remove the HVAC B fuse for a minimum of 10 seconds.
7. Re-install the HVAC B fuse.
8. Place the ignition switch in the RUN position.
9. Wait 40 seconds for the HVAC control module to re-calibrate.
10. Verify that no DTCs have set as current DTCs.