Question about 2003 Acura MDX

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Blower fan not working

The rear fan hasn't worked in a year, now the front fan is not working I am not even sure where the fuse is for it.

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  • Acura Master
  • 20,706 Answers

Its all in the glove box, open it and read the operators guide.
see fuse section.
buy one or get one free on line, google for it.
its also in the FSM. book.
or at alldata.com

The Fans are controlled via Relay, and the PCM on newer cars controls that in complex ways.
the front fan is called the A/C condenser fan the rear fan is RAD fans.
the FSM coves the tests for each and ALL steps to find what is bad.
it only takes the FSM and DMM (voltmeter ) and 15min work to see who an what is bad.
(so we look at the relay, fuse good)
we check all 4 pins with a voltmeter. bingo we know.
ask more questions, can show drawings, after fuse are good.

Posted on Nov 28, 2013

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Posted on Jan 02, 2017

  • 135 Answers

SOURCE: front fan blower not working; rear fan blows, but

Probably front blower resistor.

Posted on Aug 05, 2009

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