dtc p0480

2011 DODGE CARAVAN
150,000 MILES • 3.6L • 6 CYL • 2WD • AUTOMATIC
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HUGOL
  • MEMBER
  • 1 POST
dtc p0480 show I check fuse ok relay ok coolant fan work only low speed don't work still high speed if I'm disconnect de high relay speed low speed work I cant found fan speed control module
Aug 4, 2015 at 2:44 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,193 POSTS
  • ASE Certified Mechanic
Have you checked all of the following?

fan control relay
control relay harness for open or shorted wiring
control relay circuit for poor electrical connection
the cooling fan itself
cooling fan harness for open or shorted wiring
cooling fan circuit for a poor electrical connection

Aug 8, 2015 at 5:39 PM
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MALLYBOY
  • MEMBER
  • 329 POSTS
This is the power source from the ECM to the Radiator Fan Control Relay has malfunction, circuit/driver is faulty. So replace ECM and program it and the problem solve
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Sep 5, 2021 at 11:03 AM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,193 POSTS
  • ASE Certified Mechanic
Hi and thanks for the info. It's appreciated and will likely help others in the future.

Take care,

Joe
Sep 5, 2021 at 6:37 PM
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