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

Powertrain Control Module (PCM) Power and Ground


Object Number: 1847848  Size: FS
Master Electrical Component List
Transmission General Description
Control Module References
Park/Neutral Position Switch
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Fuel Injectors
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
G100, G101, G102
G100, G101, G102
Figure 2:

Park/Neutral Position Switch


Object Number: 1847862  Size: FS
Master Electrical Component List
Transmission General Description
Control Module References
Park/Neutral Position Switch, Brake Pressure Modulator Valve, Multifunction Alarm Module
Powertrain Control Module (PCM) Power and Ground
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Starting System
Backup Lamps
Figure 3:

Park/Neutral Position Switch, Brake Pressure Modulator Valve (BPMV), Multifunction Alarm Module


Object Number: 1847864  Size: FS
Master Electrical Component List
Transmission General Description
Control Module References
Automatic Transaxle Controls
Park/Neutral Position Switch
Figure 4:

Automatic Transaxle Controls


Object Number: 1847899  Size: FS
Master Electrical Component List
Transmission General Description
Control Module References
Vehicle Speed Signal and Overdrive Switch
Park/Neutral Position Switch, Brake Pressure Modulator Valve, Multifunction Alarm Module
Figure 5:

Vehicle Speed Signal and Overdrive Switch


Object Number: 1847900  Size: FS
Master Electrical Component List
Transmission General Description
Control Module References
Automatic Transaxle Controls
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Fuel Injectors
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
Headlights On Indicator, Crank Signal, Vehicle Speed Signal
Charge, Air Bag, Malfunction, O/D Off, Cruise Indicators
Air Pump, ETCS, Head, ALTS, EF1 Hazard EF2 Fuses
G100, G101, G102
G100, G101, G102