Radiator fan

Tiny
MOCHTO
  • MEMBER
  • 2006 CHEVROLET COBALT
  • 2.2L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 75,000 MILES
The radiator fan has three wires. I know it is a two speed fan. If the fan is going to run on high, which of the three wires is negative and which are positive?
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Thursday, May 19th, 2016 AT 2:10 PM

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Tiny
WRENCHTECH
  • EXPERT
The gray wire is high speed and the black wire is ground, but do not just go trying to hook it up to a toggle switch or something like that. The fan pulls way too much current for that. It has to run through a relay on a fused circuit so if you are not an electrical expert I suggest you have it diagnosed professionally.
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Thursday, May 19th, 2016 AT 3:37 PM
Tiny
WRENCHTECH
  • EXPERT
https://www.2carpros.com/images/external/150716808.gif
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Thursday, May 19th, 2016 AT 3:39 PM

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