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

Engine Coolant Temperature (ECT) Sensor


Object Number: 828590  Size: MF
(1)G105-Negative Battery Cable
(2)G105-Engine Harness Ground
(3)Engine Harness
(4)ECT Sensor
Figure 2:

Engine Oil Level Switch


Object Number: 828615  Size: MF
(1)Crankshaft Position (CRP) Sensor Connector
(2)Starter Motor
(3)Engine Oil Level Switch
Figure 3:

Engine Oil Pressure (EOP) Sensor


Object Number: 825336  Size: MF
(1)Engine Harness
(2)G103-Engine Harness Ground
(3)G104
(4)Camshaft Position (CMP) Sensor Connector
(5)Engine Oil Pressure (EOP) Sensor Connector
Figure 4:

Instrument Panel Cluster (IPC)


Object Number: 819967  Size: MF
(1)IPC
(2)I/P Harness
(3)C210-I/P Harness Side
(4)IPC Connector