Repair And Fix it

Disassemble your blower motor and expose the electronics inside.

Inspect the resistors in your blower motor. They are either a small coil with electrical connections or are a removable part of an integrated circuit board. Damaged resistors may appear and smell burnt, or look melted.

Remove the screws holding the resistor to the board, then remove the resistor from the motor.

Insert the replacement resistor in the same place as the old one and secure it with screws. Ensure that no stray wires or connections are touching the resistor.

Locate the blower motor under the passengers side of the dash. Find the blower controller to the left of the motor and disconnect the wiring harness connection on the controller from the connector on the wiring harness.

Depress the locking tab as you separate the two halves of the connection. Lay the connector from the wiring harness aside where it will not get damaged.

Locate the two retaining bolts on the bottom edge of the controller and remove them with a socket and ratchet. Pull the controller off the housing and remove it from under the dash.

Evacuate your air conditioning system to recover the refrigerant, or take the Odyssey to an auto mechanic and have him evacuate the system.

Disconnect the negative battery cable from the battery.

Remove the two rubber stops from the inside left and inside right of the glove box, using your fingers. Tilt the glove box all the way down toward the floor. Remove the two bolts on the left and right side of the glove box. Remove the glove box.

Cut the plastic cross brace spanning the open area behind the glove box, by slicing the left and right sides with a utility knife. This piece does not need to be replaced.

Open the hood of the car, if it is not already open. Remove the two nuts on the two refrigerant lines to and from the evaporator, located to the left rear of the motor in the engine compartment. Cap the open refrigerant openings with plastic caps. Remove the nut on the firewall, above the two refrigerant lines you just loosened. This nut holds the evaporator in place on the other side of the firewall.

Return to the glove box area. Remove the wiring harness from the evaporator. Disconnect the temperature sensor (the smaller wire on the upper left). Remove the mounting bolts. Remove the evaporator.

Remove the front passenger airbag (see warning below).

Disconnect the wiring harnesses from the blower motor. Remove the clips that hold the control cable in place. Remove the control cable. Remove the mounting bolts from the blower motor. Remove the blower motor unit.

Remove the two screws holding the blower resister to the blower motor. Reinstall a new blower resister.

Installation is the reverse of removal.

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.

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.

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.

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.

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

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.

Open the hood of your Pacifica and locate the negative battery terminal at the battery. Loosen the pinch bolt on the cable end with a wrench then remove the cable from the terminal, isolating the cable while you work.

Open the passengers door and locate the blower motor under the dash on the passengers side. The motor sits directly behind the glove compartment.

Find the resistor pack on the face of the blower motor then remove the wiring harness connector by releasing the locking tab on the connector and pulling the connector straight off the resistor pack.

Locate the two retaining bolts on the ends of the resistor pack and remove them with a socket and ratchet. Slide the resistor out of the HVAC duct then lower it from behind the dash.

Position the new resistor pack in the HVAC duct then install the two retaining bolts and tighten them with a socket and ratchet. Do not over-tighten the bolts or you will damage the plastic housing.

Push the wiring harness connection onto the new resistor pack, making sure it is secure. Take your time to be sure it goes on straight or the pins can bend on the resistor pack, causing it to function incorrectly.

Move to the battery and install the negative battery cable on the negative battery terminal then tighten the pinch bolt with a wrench. Test the repair by running the blower through the speeds and verify it is working properly.