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code po480 Cooling Fan 1 Control Circuit

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Old 12-26-2008, 10:50 AM
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Question code po480 Cooling Fan 1 Control Circuit

Does anyone know how to diagnose this code, is this the relay for the condenser fan?, where is the relay etc. PLEASE HELP. 2004 DODGE RAM LARAMIE HEMI
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Old 12-26-2008, 11:21 AM
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II would check under the hood in the fuse panel. Could be a large black resistor. About 1" by 1"
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Old 12-26-2008, 07:06 PM
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no relay in the fuse panel for this circuit
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Old 12-26-2008, 07:11 PM
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There should be a relay for it.

Did you check the fuse for the ac condensor fan?
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Old 12-27-2008, 11:21 AM
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Checked the fuse for the condenser fan, that was it thank you
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Old 12-27-2008, 12:45 PM
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Your welcome...Just as a side note, if the fuse happens to blow again real soon, that will happen since the ac/condensor motor is faulty.
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Old 12-27-2008, 03:04 PM
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Yep..............as 287cc stated, it can be a sign that the fan motor is going.
Don't go to the stealership for this. E-bay has them far cheaper and they are excellent quality.

However if this is a pre 06 vehicle, the fan shroud isn't a modified version. That, also along with a modified fan motor and also a wiring pigtail.

What can happen in the early designs of these fan shrouds is, when it's cold enough for ice, if a pool of water has formed at the bottom of the fan shroud this water freezes and stops the fan blade from turning as the blades are frozen fast in the ice.
This blows the fan fuse and can also destroy the fan motor.
What I did, was drill a few holes into the bottom of the fan shroud to let the water drain away.
Check to see if this is what's happening to your ac fan assy.
Hope this helps?

Al.
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Old 12-29-2008, 11:59 AM
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Is there a way to remove the fan without removing the whole condenser.
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Old 12-29-2008, 12:31 PM
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Yes it can be done and I did it myself when I repaired my own fan.
What you have to do, is cut a small section of the fan shroud away, to allow the top compressor hose to come clear.
Then it's a question of removing all the shroud bolts and condendenser radiator bolts.
Then with the extra room this allows, you can wiggle free the entire shroud.
You then have access to the fan assy.
There is no need to bleed off the ac coolant to do this job, but it is a little fiddly but certainly doable.
It took me about an hour to gently free up the fan.
Hope this helps?
Al.
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Old 12-29-2008, 12:31 PM
 
 
 
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