radiator fan switch

2000 PONTIAC GRAND AM
111,000 MILES • 6 CYL • 2WD • AUTOMATIC
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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LUPIMANIC
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  • 5 POSTS
i went to all i check relay sensor wires fuses thermostat can be the pcm. ????
Apr 10, 2019 at 6:16 PM (Merged)
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MMPRINCE4000
  • CAR REPAIR CONTRIBUTOR
  • 8,548 POSTS
Most cars have a fan switch that triggers the cooling fan. I could not find one in the drawing, only relays.
It may be the PCM that trips the fan relays, based on coolant temp switch.
Apr 10, 2019 at 6:16 PM (Merged)
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LUPIMANIC
  • MEMBER
  • 5 POSTS
yes no swich for the fan that is very bad..
thanks
Apr 10, 2019 at 6:16 PM (Merged)
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MMPRINCE4000
  • CAR REPAIR CONTRIBUTOR
  • 8,548 POSTS
Well maybe not so bad, change the coolant temp sender.
Apr 10, 2019 at 6:16 PM (Merged)