Question about 1998 Jeep Cherokee
First thing you need to do is check the fan motor. You do that by unplugging the fan connector and hot wiring the motor to the battery. If it's good it will run.
The remainder of the system works this way: The temperature sender on the thermostat housing sends info to the computer which sends a ground signal to the relay in the power distribution center (or below the r/f headlight). the relay closes and sends power to the fan motor.
Computers rarely fail so you need to check the other components and wiring connectors.
Posted on Aug 05, 2010
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Posted on Jan 02, 2017
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