GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Astro - 4WD 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Engine Electrical Component Views
Figure 1:

Battery Wiring (A4WD)
Object Number: 181454 Size: MF
(1)Fuse Block - Underhood
(2)Battery
(3)G102
(4)Starter Motor
(5)Starter Solenoid
(6)G103
Figure 2:

Battery Wiring (RWD)
Object Number: 181452 Size: MF
(1)Fuse Block - Underhood
(2)Battery
(3)G102
(4)Starter Motor
(5)Starter Solenoid
(6)G103
Figure 3:

Engine Wiring, Right Side
Object Number: 582029 Size: LF
(1)S123
(2)Evaporative Emission (EVAP) Canister Purge Solenoid Connector
(3)Ignition Coil Connector
(4)S122
(5)Ignition Control Module (ICM)
(6)S120
(7)Ignition Control Module (ICM) Connector
(8)Generator
(9)Generator Connector
(10)Ignition Coil
(11)Manifold Absolute Pressure (MAP) Sensor Connector
(12)MAP Sensor
(13)Evaporative Emission (EVAP) Canister Purge Solenoid