Dead rad fan 90Q20V

[Andrew Duane USG/PE <duane@zk3.dec.com>]

Angela's been complaining that her car is overheating, so I investigated
today. Her radiator fan appears dead.  I pulled off the 3-pin connector
to the fan motor, and the wiring looks different from my 100Q. The pins are:
BROWN: ground, BLACK/RED: 2nd/3rd stage power, BLUE/RED: 1st stage?
Is the resistor pack integral to the motor? It's too tucked away to
see much of anything in her car.

With the car hot and the A/C on, there is +14V at both BK/R and BL/R
wires. However, there seems to be some serious melt-down around the
BROWN (ground) pin. There is also something that look suspiciously
like scorch marks on the top of the motor itself.

Do these motors eat themselves? Did I just fry the integral resistor pack?

-- 

Andrew L. Duane (JOT-7)			duane@zk3.dec.com
Digital Equipment Corporation		(603)-881-1294
110 Spit Brook Road
M/S ZKO3-3/U14
Nashua, NH    03062-2698

Only my cat shares my opinions, and she's too heavy to care.