GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Chevrolet
🢒
2004
🢒
Optra
🢒 Device Controls
Device Controls
Device Controls
Master Electrical Component List
Controlled/Monitored Subsystem References
Fuel Controls - Fuel Pump Controls and Fuel Injectors
I/P Fuse Block - ECM Fuse
Underhood Fuse Block - MAIN Relay and ECM, ENG SNSR, and INJ Fuses - MR-140
Underhood Fuse Block - MAIN Relay and ECM, ENG SNSR, and INJ Fuses - MR-140
I/P Fuse Block - ECM Fuse
I/P Fuse Block - ECM Fuse