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

Module Power, Ground, Malfunction Indicator Lamp (MIL), Hold Lamp and Serial Data


Object Number: 1257894  Size: FS
Master Electrical Component List
Torque Converter Clutch (TCC) and Transmission Solenoids
Underhood Fuse Block - I/P Fuses, I/P Fuse Block - HORN, STOPLAMP, METER HAZARD, DOOR LOCK RKE, ECM, TCM, and CLOCK AUDIO Fuses
Underhood Fuse Block - I/P Fuses, I/P Fuse Block - HORN, STOPLAMP, METER HAZARD, DOOR LOCK RKE, ECM, TCM, and CLOCK AUDIO 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
Underhood Fuse Block - I/P Fuses, I/P Fuse Block - HORN, STOPLAMP, METER HAZARD, DOOR LOCK RKE, ECM, TCM, and CLOCK AUDIO Fuses
G201, G202 - 3 of 3
G103 - Sirius D4
DLC - 1.4L, 1.5L, 1l6L
G201, G202 - 3 of 3
G101, G102 and G105
Figure 2:

Torque Converter Clutch (TCC) and Transmission Solenoids


Object Number: 1257895  Size: FS
Master Electrical Component List
Vehicle Speed and Input Speed Sensors
Module Power, Ground, Malfunction Indicator Lamp (MIF), Hold Lamp and Serial Data
Underhood Fuse Block - I/P Fuses, I/P Fuse Block - HORN, STOPLAMP, METER HAZARD, DOOR LOCK RKE, ECM, TCM, and CLOCK AUDIO Fuses
Stop Lamps CHMSL
Steering Column/Ignition Lock
Figure 3:

Vehicle Speed and Input Speed Sensors


Object Number: 1456610  Size: FS
Master Electrical Component List
Park/Neutral Position (PNP) Switch
Torque Converter Clutch (TCC) and Transmission Solenoids
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 - Sirius D4
G101, G102 and G105
Figure 4:

Park/Neutral Position (PNP) Switch


Object Number: 1630195  Size: FS
Master Electrical Component List
Vehicle Speed and Input Speed Sensors
Underhood Fuse Block - IGN 2 Fuse, Ignition Switch, I/P Fuse Block - DIS INJECTOR, ECM TCM, WIPER WASHER, and HVAC BLOWER Fuses
Starting Systems
Underhood Fuse Block - IGN 2 Fuse, Ignition Switch, I/P Fuse Block - DIS INJECTOR, ECM TCM, WIPER WASHER, and HVAC BLOWER Fuses
Backup Lamps
G103 - Sirius D4
G101, G102 and G105