Question about 2003 Jeep Wrangler

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03 jeep wrangler, need to know how to test the heat/ac resistor. Could someone tell me how to test it?

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It sounds like you need a service manual for your jeep. The best advice I can give is to get a service manual from www.promanuals.net for your Jeep for 20 bucks you'll be able to troubleshoot much better. FYI Jeeps are notorious for the fan blowers going out.

Posted on Jun 28, 2009

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Posted on Jan 02, 2017

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2005 Jeep Wrangler Heater and Cigarette Lighters not working.


May help - fuses supply power but also needed is earth return to battery. This is usually black wires running from device to the car metal. To diagnose you need a multimeter. Check body of cigar lighter is connected to the chasis with meter on ohms. (continuity test) good is zero ohms. If earth problem, check under dash to ensure all earth wires connect to metal chassis. Then with ignition on, check centre pin at back inside cigar lighter has 12 volts to side.
If not then check fuse has 12 volt to it, Now you can get to the fan, repeat all the tests on fan. Best wishes, its tedious work.

Jan 03, 2014 | 2005 Jeep Wrangler

1 Answer

My 1998 Jeep Wrangler Heater Motor only has one speed High. Nothing on any of the lower ones, no matter on ac or heat. What could be the problem?


This is 100% the Blower (Fan) Motor Resistor located near the Blower Motor.
This is a very common problem with Chyrsler, Dodge, Jeep and Plymouth. The key symptom is the Fan only working on High.
This is very easy to access and replace.

Let me know if this helped....

May 13, 2010 | 1999 Jeep Wrangler

2 Answers

Blower speed question (ac/heater). This just


This is definitely 100% the Blower Motor Resistor.
Replace this and all speeds will work fine.
This Resistor is defined with 3 to 4 wires going into it, and is located adjacent to the Blower Motor.
It is easily access, removed and replaced.
I will post an additional comment on Part Number, Price and where available.
Let me know if this helped, or if you have additional information or questions. Feel free to contact me at FixYa.com!

Feb 19, 2010 | 1999 Jeep Wrangler

1 Answer

1999 Jeep Wrangler 4cyl W/AC, Blower quit, replaced blower motor, resistor, control panel, fuse and relay. Still nothing. Wires look good with no burnt connetions. I can not find a diagram to map the fuse...


Run a new wire to the motor from the switch this will do 2 things for you. It will tell you if your switch is still good, and if it works you just fixed your problem.

tepfy

Mar 29, 2009 | 1999 Jeep Wrangler

1 Answer

Jeep Wrangler 03 A/C stopped working abruptly


This may be the AC compressor cycling switch is defective. It is located in the larger of the 2 AC lines coming from the compressor, it has a wire connector to it with 2-3 wires. To verify this is the issue jumper the connector with a small piece of wire and see if the compressor runs.

Nov 20, 2008 | 2003 Jeep Wrangler

1 Answer

03 wrangler heater-A/C only blows on high.


Check the blower motor resistor, I,m not sure where it is located on your vehicle most are on the firewall under the hood.

Nov 12, 2008 | 2003 Jeep Wrangler

1 Answer

I'm looking for a diagram showing where I can fint the Heat/AC blower motor resistor so I can replace it.


The blower motor resistor on a 2002 Wrangler is behind the glove box, on the passenger side

Sep 26, 2008 | Jeep Wrangler Cars & Trucks

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