1990 Mazda B2600 Blower

Tiny
JPRIMEAUX
  • MEMBER
  • 1990 MAZDA B2600
  • 4 CYL
  • 2WD
  • MANUAL
  • 203,000 MILES
On speeds 1 & 2 the AC comp. Runs but the fan does not blow. On speeds 3 & 4 the fan runs but the AC does not cool and the AC light goes out.
Tuesday, April 6th, 2010 AT 7:40 PM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Hi jprimeaux,

Thank you for the donation.

The blower resistor is faulty. It can affect both the symptoms described and to test the blower resistor, ground the terminals of the

1. Blue/Yellow wire, it is for 1st speed and the A/C switch.
2. Blue wire, 2nd speed.
3. Blue/Red wire, 3rd speed.
4. Blue/Black wire, 4th speed.
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Thursday, April 8th, 2010 AT 12:19 PM

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