GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
1999
🢒
GMC Suburban - 4WD
🢒
Body and Accessories
🢒
Lighting Systems
🢒 Heater Blower Controls Component Views
Figure
1:
Auxiliary Heater Wiring
(1)
Auxiliary Blower Resistor
(2)
Auxiliary Blower Relays; Low/Medium/High
(3)
Auxiliary Blower Motor Connector
(4)
C401
(5)
Front to Rear Body Harness
(6)
C400
(7)
Auxiliary Blower Motor
Figure
2:
Rear Heater Fan Switch
(1)
Rear Fan Switch Connector
(2)
Rear Fan Switch
Figure
3:
HVAC Control Module (Rear View)
(1)
Dash
(2)
HVAC Control Module Connector, C1
(3)
HVAC Control Module Connector, C2
(4)
IP Harness
(5)
HVAC Control Module Connector, C3
(6)
HVAC Control Module (Rear View)
Figure
4:
Front HVAC Assembly
(1)
Blower Resistor
(2)
Blower Motor
(3)
Blower Motor Connectors
(4)
C230
(5)
C203
(6)
C204
(7)
Temperature Door Motor
(8)
HVAC Plenium
(9)
Mode Door Motor
(10)
HVAC Wiring Harness
(11)
Blower Motor Relay, High