GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Module Power, Ground, Serial Data, MIL


Object Number: 1630087  Size: FS
Master Electrical Component List
Engine Data Sensors - Pressure and Temperature
Underhood Fuse Block - IGN 2 Fuse, Ignition Switch, I/P Fuse Block - DIS INJECTOR, ECM TCM, WIPER WASHER, and HVAC BLOWER Fuses
G103 - HV 240
Module Power, Ground, Malfunction Indicator Lamp (MIF), Hold Lamp and Serial Data
DLC - 1.4L, 1.5L, 1l6L
Figure 2:

Engine Data Sensors - Pressure and Temperature


Object Number: 1257887  Size: FS
Master Electrical Component List
Ignition Controls - Ignition System
odule Power, Ground, Serial Data, and MIL
Manual Transmission
Figure 3:

Ignition System


Object Number: 1358346  Size: FS
Master Electrical Component List
Ignition Controls - Sensors
Engine Data Sensors - Pressure and Temperature
Underhood Fuse Block - IGN 2 Fuse, Ignition Switch, I/P Fuse Block - DIS INJECTOR, ECM TCM, WIPER WASHER, and HVAC BLOWER Fuses
Instrument Panel Gages (1.4L/1.6L)
Underhood Fuse Block - IGN 2 Fuse, Ignition Switch, I/P Fuse Block - DIS INJECTOR, ECM TCM, WIPER WASHER, and HVAC BLOWER Fuses
G103 - MR 140
Figure 4:

CKP, CMP, and Knock Sensors


Object Number: 1630088  Size: FS
Master Electrical Component List
Fuel Controls - Fuel Pump Controls and Fuel Injectors
Ignition Controls - Ignition System
Underhood Fuse Block - IGN 2 Fuse, Ignition Switch, I/P Fuse Block - DIS INJECTOR, ECM TCM, WIPER WASHER, and HVAC BLOWER Fuses
Underhood Fuse Block - IGN 2 Fuse, Ignition Switch, I/P Fuse Block - DIS INJECTOR, ECM TCM, WIPER WASHER, and HVAC BLOWER Fuses
Underhood Fuse Block - IGN 2 Fuse, Ignition Switch, I/P Fuse Block - DIS INJECTOR, ECM TCM, WIPER WASHER, and HVAC BLOWER Fuses
Engine Data Sensors - Pressure and Temperature
G103 - MR 140
Figure 5:

Fuel Pump and Fuel Injectors


Object Number: 1257889  Size: FS
Master Electrical Component List
EVAP and Device Controls
Ignition Controls - Sensors
Underhood Fuse Block - IGN 2 Fuse, Ignition Switch, I/P Fuse Block - DIS INJECTOR, ECM TCM, WIPER WASHER, and HVAC BLOWER Fuses
Underhood Fuse Block - IGN 2 Fuse, Ignition Switch, I/P Fuse Block - DIS INJECTOR, ECM TCM, WIPER WASHER, and HVAC BLOWER Fuses
Underhood Fuse Block - IGN 1 Fuse, Ignition Switch, I/P Fuse Block - CIGAR JACK, AUDIO CLOCK, METER CLOCK, TSIG, BACKUP LAMP, and AIR BAG Fuses
Underhood Fuse Block - IGN 2 Fuse, Ignition Switch, I/P Fuse Block - DIS INJECTOR, ECM TCM, WIPER WASHER, and HVAC BLOWER Fuses
Instrument Panel Gages (1.4L/1.6L)
G401 - Notchback
Figure 6:

EVAP, IAC, and Octane Selection Switch


Object Number: 1630089  Size: FS
Master Electrical Component List
Controlled/Monitored Subsystem References
Fuel Controls - Fuel Pump Controls and Fuel Injectors
Underhood Fuse Block - IGN 2 Fuse, Ignition Switch, I/P Fuse Block - DIS INJECTOR, ECM TCM, WIPER WASHER, and HVAC BLOWER Fuses
Underhood Fuse Block - IGN 2 Fuse, Ignition Switch, I/P Fuse Block - DIS INJECTOR, ECM TCM, WIPER WASHER, and HVAC BLOWER Fuses
Underhood Fuse Block - IGN 2 Fuse, Ignition Switch, I/P Fuse Block - DIS INJECTOR, ECM TCM, WIPER WASHER, and HVAC BLOWER Fuses
G103 - MR 140
Figure 7:

Controlled/Monitored Subsystem References


Object Number: 1630090  Size: FS
Master Electrical Component List
EVAP and Device Controls
Audible Warnings
Instrument Panel Gages (1.4L/1.6L)
Single Cooling Fan (1.2L)
Blower Controls