gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Blower Motor Relay > < Auxiliary Cabin Heater Control Module|Locations|Page 104
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Caution:  Refer to Fastener Caution   (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution).

3. Install the heater coolant heater control module retaining screws.

*

Tighten the upper screws to 3 Nm (27 lb in).

*

Tighten the lower screws to 6 Nm (53 lb in).

4. Connect the heater coolant heater electrical connectors.
5. Lower the vehicle.

Blower Motor Relay > < Auxiliary Cabin Heater Control Module|Locations|Page 104