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How to Replace a Blower Resistor on a Jeep Liberty

Replacing the blower motor resistor on your Jeep Liberty may be necessary if the HVAC blower motor has stopped working in all but one speed. The resistor limits the amount of electrical current that is fed to the motor, causing the motor to run faster or slower respectively. If the resistor fails, the motor will work at full speed or off but nothing in between. A new resistor is available from any Jeep parts department.

Instructions

1

Open the hood of your Liberty and loosen the clamp bolt on the negative battery cable with a wrench. Remove the negative battery cable from the battery terminal and set it aside.

2

Open the passengers side door of the Jeep then the glove compartment door. Access to the resistor is through the back of the glove compartment.

3

Locate the connector latch on the wiring harness connector for the blower motor resistor. Depress the latch, pull the connector off the resistor and set it aside.

4

Remove the two retaining bolts from the resistor with a socket, ratchet and extension bar then pull the resistor off the HVAC housing and discard it. Position the new resistor on the housing and install the two retaining bolts, tightening them until they are snug.

5

Push the electrical connector onto the new resistor, making sure it locks into place. Close the glove compartment.

6

Connect the negative battery cable to the negative battery post and tighten the clamp bolt with the wrench until it is secure. Close the hood of your Jeep and test the repair by running the blower motor through each speed setting with the blower switch inside the vehicle.