The 1993 Jeep Wrangler use a blend-air heater system. The air is heated by the engine coolant and the warm air is blown into the car interior by the blower motor. The blower meter is driven electrically, independent of engine speed, and operates effectively even when The engine speed is low. The heater system consists of blower motor, heater housing and core, heater valve and control panel. Below schematic illustrates the Wiring Diagram.

Jeep Wrangler Heater System Wiring Diagram

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