Here is a typical schematic of 1998 Chevrolet Blazer Control Module . The system consists of: underhood fuse block, IP fuse block, electronic climate control module, blower control module, , splice pack, data link connector, and battery.

ChevroletBlazerBlowerMotorControlMod

The blower switch provides various blower speeds. It receives power through a fuse in fuse block when ignition is on. In various speed positions, circuit continues through wiring harness to resistor assembly near .



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