GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Blazer - 4WD - RHD 🢒 Body and Accessories 🢒 Instrument Panel, Gauges, and Console 🢒 Instrument Cluster: Analog Schematics
Figure 1:

Cell 81: Power, Data Link Connector, and VCM
Object Number: 372031 Size: FS
Figure 2:

Cell 81: Power and Ground
Object Number: 376824 Size: FS