Engine cooling fans

Tiny
SNOWDOG2112
  • MEMBER
  • 2002 FORD FOCUS
  • 2.0L
  • 4 CYL
  • FWD
  • MANUAL
  • 193,500 MILES
Fans will not start. The cylinder head temperature sensor replaced, new engine cooling fan resistor, engine cooling fan relay replaced. All fuses good, wires ring out, fans start when jumped. Fans will start when the ground wire from relay to PCM is grounded.
Wednesday, August 16th, 2017 AT 7:45 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
Hello,

Yes, the only thing left is the ECM which triggers the relay, it sounds like the cooling fan driver is out.

Here is the location (below) of the ECM I would try a used one so it will be plug and play.

Please let us know what happens so it will help others.

Cheers, Ken
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Thursday, August 17th, 2017 AT 1:40 PM

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