GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Blazer - 2WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E/4L65-E 🢒 HVAC Component Views
Figure 1:

A/C Accumulator (4.3L)
Object Number: 614435 Size: LF
(1)A/C Low Pressure Switch
(2)A/C Accumulator
(3)High Side Service Port
(4)C100
(5)Low Side Service Port
Figure 2:

Body Wiring to Blower Motor and Resistor (RPO C42)
Object Number: 595462 Size: MF
(1)Blower Motor and Connector
(2)Blower Motor Relay
(3)Blower Motor Resistor and Connector
Figure 3:

Body Wiring to Blower Motor and Resistor (RPO C60)
Object Number: 531763 Size: MF
(1)Blower Motor and Connector
(2)Blower Motor Relay
(3)Blower Motor Resistor and Connector
Figure 4:

Engine Harness to A/C Compressor and Diode (4.3L)
Object Number: 392568 Size: MF
(1)A/C Compressor Clutch Connector
(2)A/C Compressor High Pressure Switch Connector
(3)A/C Compressor Clutch Diode, S103 and S104
(4)Fuse Block - Underhood Connector C2
(5)A/C Compressor
Figure 5:

Air Temperature Actuator
Object Number: 1726578 Size: MF
(1)Air Temperature Actuator
(2)Vacuum Harness
(3)HVAC Module
Figure 6:

IP Wiring to HVAC Control Assembly
Object Number: 392587 Size: MF
(1)HVAC Control Assembly
(2)HVAC Control Assembly Connector C4
(3)HVAC Control Assembly Connector C1
(4)HVAC Control Assembly Connector C5
(5)S215
(6)HVAC Control Assembly Connector C3
(7)HVAC Control Assembly Connector C2