Question about 2002 Jeep Grand Cherokee

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FAN BLOWER (FOR A/C AND HEAT) ONLY BLOWS ON THE HIGHEST SETTING. IS THERE A FAN SPEED CONTROL OR RELAY THAT CAN BE REPLACED, OR IS IT SOMETHING ELSE?

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Hello leebarker
The blower moter switch or the blower moter controler can cause this
problem. Remove the plug from the switch, use a 12v test light to locate
the 12v power wire in the plug. Next with a small jumper wire bring power from the 12v contact to the low and medium speed contacts on
the plug if the blower changes speed replace the switch if it still only
has high replace the controler. The blower controler is located on the
passenger side end of the heat-a/c box near the blower moter.
By the way the key must be in the on position for this test.
I hope this helps. Good luck.

Posted on Jul 10, 2010

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Posted on Jan 02, 2017

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