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

PNP Switch, OSS, ISS, Indicators, and PCM Communication


Object Number: 1796865  Size: FS
Master Electrical Component List
Electronic Component Description
Control Module References
Solenoid and Switch Controls
B+ Bus and EPS Fuse
IGN Fuse and Ignition Switch Circuits
SUNROOF, PWR WDW, ABS 10A, ABS 20A, ABS PWR, HVAC BLOWER, AUX1 OUTLET, CIGAR/AUX2, and ECM/PCM Fuses
BACKUP, PWR TRAIN, 10A ABS, and INJECTOR Fuses (Except HP7)
Starting (L66)
L66 with 5AT
L61 with MG3
Backup Lamps
G107 and G109 (L66)
5-Volt Reference
5-Volt Reference
G107 and G109 (L66)
Figure 2:

Solenoid and Switch Controls


Object Number: 1796915  Size: FS
Master Electrical Component List
Electronic Component Description
Control Module References
PNP Switch, OSS, ISS, Indicators, and PCM Communication
Low References
Low References
Low References