GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2001 🢒 Express 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 HVAC Component Views
Figure 1:

A/C Compressor
Object Number: 310511 Size: MF
(1)A/C Compressor Clutch Connector
(2)A/C Compressor
(3)Exhaust Gas Recirculation (EGR) Valve Connector - 4.3L
(4)A/C High Pressure Switch Connector
Figure 2:

A/C Low Pressure Switch
Object Number: 375615 Size: MF
(1)A/C Low Pressure Switch
Figure 3:

Auxiliary Heater and A/C Wiring
Object Number: 375651 Size: MF
(1)C407
(2)Blower Motor High Speed Relay - Auxiliary
(3)Blower Motor Medium Speed Relay - Auxiliary
(4)Blower Motor Low Speed Relay - Auxiliary
(5)Blower Motor - Auxiliary
(6)Mode Actuator - Auxiliary
(7)Air Temperature Actuator - Auxiliary
(8)Blower Motor Resistor - Auxiliary
(9)C408
Figure 4:

Auxiliary Heater and A/C Wiring Controls
Object Number: 375647 Size: MF
(1)HVAC Control Processor - Auxiliary
(2)HVAC Control Assembly - Front Auxiliary
(3)HVAC Control Assembly - Rear Auxiliary
Figure 5:

Auxiliary Blower Motor Switch
Object Number: 375620 Size: MF
(1)Auxiliary Blower Motor Switch
Figure 6:

Defroster Actuator
Object Number: 375646 Size: MF
(1)Air Inlet Valve Actuator
(2)Defroster Actuator
Figure 7:

Heater and A/C Controller
Object Number: 375623 Size: MF
(1)Heater and A/C Controller - Base
(2)Blower Motor Switch - Part of Heater and A/C Controller
(3)Heated Mirror Switch - Part of Heater and A/C Controller
Figure 8:

Instrument Panel Wiring, HVAC
Object Number: 375645 Size: MF
(1)Recirculation Solenoid Valve
(2)Air Temperature Actuator
Figure 9:

Underhood Lamp, Blower Motor, Blower Motor Resistor/Relay
Object Number: 690730 Size: MF
(1)Underhood Lamp
(2)Underhood Lamp Reel
(3)Blower Motor
(4)Blower Motor Resistor/Relay