TrailBlazer 2WD L6-4.2L VIN S (2003)
Tighten
Tighten the screws to 1.9 N.m (17 lb in).
3. Connect the electrical connector to the mode actuator-auxiliary (1).
4. Install the right rear quarter trim panel.
5. Calibrate the HVAC module actuators, See: Testing and Inspection/Programming and Relearning
Recirculation Actuator
RECIRCULATION ACTUATOR REPLACEMENT
REMOVAL PROCEDURE
1. Remove the HVAC module assembly.
2. Remove the air inlet assembly.
3. Remove the screws from the air inlet assembly.
4. Remove the recirculation actuator screws.
5. Remove the recirculation actuator.
INSTALLATION PROCEDURE
1. Install the recirculation actuator.
2. Install the recirculation actuator screws.
NOTE: Refer toFastener Notice in Service Precautions.
Tighten
Tighten the screws to 1.9 N.m (17 lb in).
3. Install the air inlet assembly.