Sierra 3500 4WD V8-6.0L VIN U (2004)
1. Install the blower motor control processor (2) to the HVAC module (1).
NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the blower motor control processor retaining screws.
Tighten
Tighten the screws to 1.6 N.m (14 lb in).
3. Connect the electrical connector (4) to the blower motor control processor (2).
4. Connect the electrical connector at the blower motor.
5. If equipped, install the sound insulator panel.
HVAC Control Module Replacement
HVAC CONTROL MODULE REPLACEMENT
REMOVAL PROCEDURE