Question about 2002 Jeep Grand Cherokee

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2002 Grand Cherokee blower motor not running at any speed. I understand that when resistor is blown it should operate on high speed (only). Does this mean blower motor must be replaced ? any other possible problems (other than resitor change) ?

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Yes it does try dis see if you can spin the motor by hand and turn it on if it stops then change it

Posted on Jul 11, 2009

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1 Answer

Blower motor only works on high for 2004 jeep grand cherokee what is the fix ?


This is caused by a defective blower motor speed control resistor. The resistor is located next to the blower motor with one end going into the air ducting and the other sticks out with an electrical connector on it.

Jun 10, 2012 | 2004 Jeep Grand Cherokee

1 Answer

2005 Jeep Grand Cherokee. Htr/AC fan switch only functions @ highest speed. At lower speed settings I can hear doors opening and closing---but not air.


replace the blower motor resistor. It controls the fan speeds. It defaults to high speed only when it fails.

How to replace the blower motor resistor block: Caution: Stay clear of the blower motor and resistor block (Hot). Do not operate the blower motor with the resistor block removed. 1. Disconnect and isolate the battery negative cable.
2. Remove the glove box from the instrument panel.
3. Pull out the lock on the blower motor resistor wire harness connector to unlock the connector latch.
4. Depress the latch on the blower motor resistor wire harness connector and disconnect the connector from the resistor.
5. Remove the two screws that secure the blower motor resistor block to the HVAC housing.
6. Remove the resistor block from the HVAC housing. Installation:
1. Position the blower motor resistor block into the HVAC housing.
2. Install the two screws that secure the resistor block to the HVAC housing. Tighten the screws to 2.2 Nm (20 in. lbs.)
3. Connect the wire harness connector to the resistor block.
4. Push in the lock on the blower motor resistor wire harness connecgtor to lock the connector latch.
5. Install the glove box.
6. Reconnect the battery negative cable.
7. Have a nice day!

Oct 11, 2010 | Jeep Cherokee Cars & Trucks

2 Answers

2005 grand cherokee blower motor only runs in high no med or low speed,


Change your blower motor resistor, usually that is the last one to go out is high. Also be sure to check your fuses as a just in case.

Aug 03, 2010 | 2005 Jeep Grand Cherokee

1 Answer

Blower speeds 1, 2 & 3 don't work on my 2002 grand am GT. Cruise control kicks our now and then for no given reason. Any thoughts?


Usually if you loose all the blower speeds except for high then the blower motor speed resistor is to blame. This device reduces the voltage that is supplied to the blower motor so you get the slower speed of 1,2, and 3 but is bypassed for the full voltage direct powered high speed which is why the high speed will continue to work.

Jul 06, 2010 | 2002 Pontiac Grand Am

3 Answers

I have a 2002 Elantra. Yestreday the lower fan speeds on the air conditioner fan stopped working (positions 1,2,3). The High speed (position 4) works. Any ideas how to correct?


The blower motor resistors or fan switch itself are defective.
High speed has no resistors B+ goes straight to blower motor.

Jun 03, 2010 | 2000 Hyundai Elantra

3 Answers

Heater blower resistor gets very hot


the resistor is indeed very hot! and you are right it's cool by the blower, that's why most resistors are in the blower case.
the fuse was blown because it's not the right amp rating or the blower may be going bad.
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Mar 29, 2010 | 1997 Jeep Grand Cherokee

3 Answers

My heater fan quit working. I don't know if the problem is with the fan or the electrical system (fuse?).


First place to check is fuse box. Look at F-20. It is under the dash, left of the steering wheel.

Here's a link to the fuse box legend...

http://www.wjjeeps.com/fuses.htm

Here's a link to show you where the fuses sit in the box...

http://www.wjjeeps.com/misc/jblock_main.jpg

Nov 15, 2009 | 2001 Jeep Grand Cherokee

1 Answer

The fan switch on 1995 Jeep grand Cherokee only works on high speed does anybody know what the problem is


Probably a faulty switch, but could be blown resistors. Check for voltage on the blower motor on high medium and low.

Oct 14, 2009 | 2000 Jeep Grand Cherokee

1 Answer

Interior fan won't run to run A/C or heater. I


If blower only works on high speed I would say blower motor resistor but if it does not work at all I would suspect blower motor. Make sure you are getting power to motor if not it might be blower motor switch.

Jul 02, 2009 | 1998 Jeep Grand Cherokee

1 Answer

Air wont blow


The high speed setting on any blower bypasses the dropping resistor completely so I suspect you have a failing switch contact. If you can access it, some 'contact cleaner' from an electronic supply outlet may help to restore its operation but generally, once a switch develops problems, it will fail again. 

Sep 18, 2008 | 2000 Jeep Grand Cherokee

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