Where is the1998 towncar blower motor resistor

David, Check the attached links,instruction and guides on replacing blower motor resistor. you can also google search your make and model# blower motor resistor replacement. Good luck
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How to replace Blower Motor Resistor
How to replace blower motor resistor in Chevrolet Silverado
https://www.automd.com/633/how-to-replace-a-blower-motor-resistor
the blower motor resistor replace Google Search

Replace blower motor ballast resistor.

Have you checked the switch in the dash. Also check the blower motor resistor.

have you checked the fuses?? does it work on any speeds?? if so probly check the resistor, quiet possibly the blower motor is defective

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Blower Motor Resistor and Controller Replacement

Image Blower Motor Resistor Or Controller/Power Module Remove/Install

REMOVAL

1. Disconnect and isolate the batten' negative cable.

2. Depress locking tab and unplug the wire harness connector from the blower motor

resistor or controller (power module).

3. Depress locking tab and unplug the resistor or controller connector from the blower

motor.

4. Remove the 2 screws that secure the blower motor resistor or controller to the

heater-AC housing.

5. Remove the blower motor resistor or controller from the heater AC housing.

INSTALLATION

1. Install the blower motor resistor or controller to the heater AC housing. The

housing is indexed to allow (controller power module) mounting in only one

position. Tighten the mounting screws to 2.2 Nm(20 in. Lbs.).

2. Plug in the wire harness connector to the blower motor resistor or controller.

3. Plug in the connector from the blower motor resistor or controller to the blower

motor.

4. Connect the batten' negative cable.

Thank you for using FixYa.com

Regards, Lee Davidian

u willl need to replace the blower motor speed control resistor.

you need to test for power at the heater motor when it doesn't work there is a heater resitor that aslo needs to be tested if you have power to blower motor and it is still not working the motor is bad. if no power go to resistor it is located in the heater box behind right side valve cover. test for power at the plug it will move from pin to pin depending on the heater speed setting if you have no power at the resistor then suspect a faulty heater module. if you need anything else let me know.

it is located on the heater box where the bolwer moror is there will be two screws holding it on the housing, look on the passenger side under the dash it will have 3 to 5 wires connected to it depending on the type of temp controller.

The blower motor resistors are known for going bad. Usually its because the blower starts drawing too much current. What I would recommend doing if you can and have the tools, is to check the blower motor connector to make sure 12 volts is present. If so than I would recommend replacing the blower motor resistor. Then if the same issue ever happens again and the blower motor resistor is bad again, you will need to replace the blower motor and the blower resistor as the final repair.
Here is some info about testing the resistor using a multimeter it you have one:

DIAGNOSIS AND TESTING- BLOWER MOTOR RESISTOR WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE AIRBAG SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.
Both the front blower motor resistor and the optional rear heater-A/C unit blower motor resistor can be diagnosed using the procedure that follows. For circuit descriptions and diagrams, refer to Air Conditioning/Heater in Group 8W - Wiring Diagrams.

1. Disconnect and isolate the negative battery cable.
2. Disconnect the wire harness connector from the blower motor resistor block.
3. Check for continuity between each of the blower motor switch input terminals of the resistor and the resistor output terminal. In each case there should be continuity. If OK, repair the wire harness circuits between the blower motor switch and the blower motor resistor block or blower motor as required. If not OK, replace the faulty blower motor resistor block.

Here is the information on replacing the resistor:

REMOVAL

1. Disconnect and isolate the battery negative cable.
2. From the passenger foot well area, remove the two hex screws used to secure the blower motor resistor.
3. Unplug the front blower motor resistor from the wire harness connector.
4. Remove the front blower motor resistor from the HVAC unit.

Here is an exploded view of the HVAC box. The resistor is #63 in the picture and the actual part may appear slightly different:

View Full Image


If any issues such as no voltage at blower connector or damaged or melted connector at the resistor then let me know.

Its the blower resistor. I couldn't get the pictures in sorry. Rob

RESISTOR-BLOWER MOTOR
DESCRIPTION
The blower motor resistor is mounted to the HVAC air
inlet housing, directly behind the glove box. The
blower motor resistor consists of a molded plastic
mounting plate (1) with an integral wire connector
receptacle (2). Concealed behind the mounting plate
are coiled resistor wires contained within a ceramic
heat sink (3). The blower motor resistor is accessed
for service by removing the glove box from the instrument
panel.
The blower motor resistor is accessed for service by
removing the glove box from the instrument panel.
OPERATION
The blower motor resistor is connected to the vehicle electrical system through a dedicated wire lead and connector
of the HVAC wire harness. The blower motor resistor has multiple resistor wires, each of which will reduce the
current flow through the blower motor to change the blower motor speed.
The blower motor control in the MTC heating-A/C system directs the ground path for the blower motor through the
correct resistor wire to obtain the selected speed. With the blower motor control in the lowest speed position, the
ground path for the blower motor is applied through all of the resistor wires. Each higher speed selected with the
blower motor control applies the blower motor ground path through fewer of the resistor wires, increasing the blower
motor speed.
The blower motor resistor cannot be adjusted or repaired and, if faulty or damaged (such as a cracked ceramic heat
sink), it must be replaced.

DIAGNOSIS AND TESTING
BLOWER MOTOR RESISTOR
WARNING: On vehicles equipped with airbags, disable the airbag system before attempting any steering
wheel, steering column, or instrument panel component diagnosis or service. Disconnect and isolate the
negative battery (ground) cable, then wait two minutes for the airbag system capacitor to discharge before
performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to
take the proper precautions could result in accidental airbag deployment and possible personal injury or
death.
NOTE: For circuit descriptions and diagrams, refer to the appropriate wiring information. The wiring information
includes wiring diagrams, proper wire and connector repair procedures, further details on wire harness
routing and retention, as well as pin-out and location views for the various wire harness connectors,
splices and grounds.
1. Disconnect and isolate the negative battery cable.
2. Disconnect the wire harness connector from the blower motor resistor (Refer to 24 - HEATING & AIR CONDITIONING/
CONTROLS/RESISTOR-BLOWER MOTOR - REMOVAL).
24 - 138 CONTROLS ND
3. Using an ohmmeter, check for continuity between all of the blower motor resistor terminals. In each case there
should be continuity. If OK, repair the wire harness circuits between the blower motor switch and the blower
motor resistor or blower motor as required. If not OK, replace the faulty blower motor resistor.
REMOVAL
WARNING: On vehicles equipped with airbags, disable the airbag system before attempting any steering
wheel, steering column, or instrument panel component diagnosis or service. Disconnect and isolate the
battery negative (ground) cable, then wait two minutes for the airbag system capacitor to discharge before
performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to
take the proper precautions could result in accidental airbag deployment and possible personal injury or
death.
WARNING: The blower motor resistor may get very hot during normal operation. If the blower motor was
turned on prior to servicing the blower motor resistor, wait five minutes to allow the resistor to cool before
performing diagnosis or service. Failure to take this precaution can result in personal injury or death.
1. Disconnect and isolate the negative battery cable.
2. Remove the glove box (Refer to 23 - BODY/INSTRUMENT
PANEL/GLOVE BOX - REMOVAL).
3. Disengage the wire harness connector locking tab
and disconnect the wire harness connector (1) from
the blower motor resistor (2).
4. Remove the two screws (3) that secure the blower
motor resistor to the HVAC housing (4).
5. Remove the blower motor resistor from the HVAC
housing.
INSTALLATION
1. Position the blower motor resistor (2) into the
HVAC housing (4).
2. Install the two screws (3) that secure the blower
motor resistor to the HVAC housing. Tighten the
screws to 2 N·m (17 in. lbs.).
3. Connect the wire harness connector (1) to the
blower motor resistor and engage the wire harness
connector locking tab.
4. Install the glove box (Refer to 23 - BODY/INSTRUMENT
PANEL/GLOVE BOX - INSTALLATION).
5. Reconnect the negative battery cable.