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

Power, Ground and Serial Data


Object Number: 2179908  Size: FS
Figure 2:

Indicators


Object Number: 2179911  Size: FS
Figure 3:

Gages, Engine Oil Pressure and Fuel Level Sensor (LTD/LE5)


Object Number: 2179912  Size: FS