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

PCM and Engine Oil Pressure Sensor


Object Number: 454645  Size: FS
Instrument Cluster Components
Instrument Cluster Circuit Description
EBCM, PCM, Generator, ECT and Oil Level Switch
EBCM, PCM, Generator, ECT and Oil Level Switch
EBCM, PCM, Generator, ECT and Oil Level Switch
EBCM, PCM, Generator, ECT and Oil Level Switch
Fuse Block Schematics
Ground Distribution Schematics
Ground Distribution Schematics
Antilock Brake System Schematics
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Power Distribution Schematics
Engine Controls Schematics
Engine Controls Schematics
Figure 2:

EBCM, PCM, Generator, ECT and Oil Level Switch


Object Number: 454646  Size: FS
Instrument Cluster Components
Instrument Cluster Circuit Description
BCM and PCM
PCM and Engine Oil Pressure Sensor
Ground Distribution Schematics
Fuse Block Schematics
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
PCM and Engine Oil Pressure Sensor
PCM and Engine Oil Pressure Sensor
PCM and Engine Oil Pressure Sensor
Power Distribution Schematics
Figure 3:

BCM and PCM


Object Number: 454647  Size: FS
Instrument Cluster Components
Instrument Cluster Circuit Description
Indicators
EBCM, PCM, Generator, ECT and Oil Level Switch
Interior Lights Dimming Schematics
Fuse Block Schematics
Fuse Block Schematics
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Ground Distribution Schematics
Power Distribution Schematics
Power Distribution Schematics
Indicators
Indicators
Figure 4:

Indicators


Object Number: 454648  Size: FS
Instrument Cluster Components
Instrument Cluster Circuit Description
BCM and PCM
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
SIR Handling Caution
Ground Distribution Schematics
Ground Distribution Schematics
Antilock Brake System Schematics
Fog Lights Schematics
Brake Warning System Schematics
BCM and PCM
BCM and PCM
Headlights/Daytime Running Lights (DRL) Schematics Scandinavia
Headlights/Daytime Running Lights (DRL) Schematics Domestic
Exterior Lights Schematics Europe and Scandinavia
Exterior Lights Schematics Japan
Exterior Lights Schematics Domestic