P0481 code Fan 2 control circuit?

2007 CHRYSLER PT CRUISER
210,000 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC
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JERRYSIDDOCK
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the car starts to overheat when idling at a stop light, it'll lower if i turn on the cabin heater. the code Fan 2 control circuit. is there a schematic available, and can i force check the fan itself with a B+ jumper anywhere in the circuit, or is it a 6v for the lower speed?
Apr 13, 2026 at 6:06 AM
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STRAILER
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Most of the time these cars have a fan control module that goes out, also I would but 12 volts to the fan and make sure it works well, if the cooling fan is going out it will pull too many amps which will cause the module to go out as well. Here is the wiring diagrams so you can see how the system works. Here is the location of the module as well. Check out the images (below). Let us know how it goes




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Apr 14, 2026 at 7:55 AM
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JERRYSIDDOCK
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i just now saw this, thanks
Apr 21, 2026 at 8:10 AM
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STRAILER
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You are welcome, please let us know what happens.
Apr 22, 2026 at 7:20 AM
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JERRYSIDDOCK
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thing is, it quit doing it . . .
Apr 22, 2026 at 7:51 AM
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STRAILER
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I car that fixes it its self YAY!!!! If it starts doing it again please get back to me so I can keep helping you :)
Apr 23, 2026 at 7:34 AM