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

Data Link, Engine Oil Pressure Sensor, Instrument Cluster, and PCM


Object Number: 348150  Size: FS
Instrument Cluster Components
Audible Warnings Circuit Description
BCM and Headlamp Dimmer Switch
Class 2 Serial Data Line Cell 50
I/P Fuses 7, 9, 10 and 11
U/H Center 2: STRTR, PCM IGN and ABS IGN Fuses
BCM, Engine Coolant Level Indicator Module, PCM, and Rear Compartment Lid Ajar Indicator Switch
BCM and Headlamp Dimmer Switch
Handling ESD Sensitive Parts Notice
G110 V6 VIN K
TCS Retard Signal, VSS Output and VSS Signal
G110 V6 VIN K
Handling ESD Sensitive Parts Notice
Figure 2:

BCM and Headlamp Dimmer Switch


Object Number: 348153  Size: FS
Instrument Cluster Components
Audible Warnings Circuit Description
BCM, Engine Coolant Level Indicator Module, PCM, and Rear Compartment Lid Ajar Indicator Switch
Data Link, Engine Oil Pressure Sensor, Instrument Cluster, and PCM
Tail/Stop/Turnlamps Cell 110
Ignition Switch and IP Fuse Block
Chevrolet Cell 103
I/P Fuses 13 and 16
Park/Turnlamps, Foglamps Relay, Side Marker Lamps Cell 110
Data Link, Engine Oil Pressure Sensor, Instrument Cluster, and PCM
Handling ESD Sensitive Parts Notice
G200 Door Locks, Mirrors, Windows
Figure 3:

BCM, Engine Coolant Level Indicator Module, PCM, and Rear Compartment Lid Ajar Indicator Switch


Object Number: 348154  Size: FS
Instrument Cluster Components
Audible Warnings Circuit Description
Class 2 Indicators
BCM and Headlamp Dimmer Switch
I/P Fuses 7, 9, 10 and 11
Data Link, Engine Oil Pressure Sensor, Instrument Cluster, and PCM
G112 V6 VIN K
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Class 2 Indicators
Figure 4:

Class 2 Indicators


Object Number: 348156  Size: FS
Instrument Cluster Components
Audible Warnings Circuit Description
BCM, Engine Coolant Level Indicator Module, PCM, and Rear Compartment Lid Ajar Indicator Switch
BCM, Engine Coolant Level Indicator Module, PCM, and Rear Compartment Lid Ajar Indicator Switch
Handling ESD Sensitive Parts Notice
Cell 41