GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2000 🢒 Astro - 4WD 🢒 Driveline/Axle 🢒 Transfer Case - NVG 136-NP4 (One Speed Automatic) 🢒 HVAC Component Views
Figure 1:

Engine/Center of Front Dash Wiring (Electrical)
Object Number: 596383 Size: LF
(1)Cruise Control Module
(2)Intake Manifold Air Temperature Sensor Connector
(3)Wiper Motor Module Front
(4)Intake Manifold Air Temperature Sensor
(5)A/C Low Pressure Cut-Off Switch
(6)A/C Low Pressure Cut-Off Switch Connector
(7)Heater and A/C Control Valve Solenoid
(8)Heater and A/C Control Valve Solenoid Connector
(9)Mass Air Flow Sensor
(10)Mass Air Flow Sensor Connector
(11)Mass Air Flow Sensor Connector
(12)Mass Air Flow Sensor
(13)Intake Manifold Air Temperature Sensor
(14)Intake Manifold Air Temperature Sensor Connector
(15)Blower Motor Front
(16)S115
(17)S117
Figure 2:

IP Wiring, RH Side (Electrical)
Object Number: 582027 Size: LF
(1)S232
(2)S231
(3)S230
(4)S260
(5)S241
(6)S229
(7)S223
(8)S224
(9)S259
(10)S223
(11)S227
(12)S228
(13)Temperature Control Motor Connector
(14)Temperature Control Motor
Figure 3:

HVAC Panel Wiring (Component)
Object Number: 281316 Size: SF
(1)Temperature Control Switch (Part of HVAC Control Module)
(2)Mode Switch (Part of HVAC Control Module)
(3)HVAC Control Module (with A/C) Heater Control Module (without A/C)
(4)Heater Switch Rear Connector
(5)Heater Switch Rear
(6)A/C Switch Rear
(7)A/C Switch Rear Connector
(8)Window Wiper/Washer Switch Rear
(9)Radio
(10)Instrument Cluster
(11)Rear Defogger Switch
(12)Fan Switch (Part of HVAC Control Module)
Figure 4:

Rear Heater Wiring (Electrical)
Object Number: 374527 Size: LF
(1)G301
(2)Heater Resistor Pack Rear Connector
(3)Heater Blower Motor Ground Rear Connector (C1)
(4)Heater Blower Motor Power Rear Connector (C2)
(5)Heater Blower Motor Rear
(6)Heater Resistor Pack Rear
Figure 5:

A/C Wiring Rear
Object Number: 374534 Size: LF
(1)A/C Resistor Pack Rear Connector
(2)A/C Resistor Pack Rear
(3)G404
(4)A/C Blower Motor Rear
(5)A/C Blower Motor Rear Ground Connector
(6)A/C Blower Motor Rear Power Connector