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P0480 2005 Town and Country

  #1  
Old 01-02-2012, 05:13 PM
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Default P0480 2005 Town and Country

This is the fan control circuit fault code. The fan works as i tested it independently. I replaced the relay behind the grill and still does not come on. next step? I have necessary ohm and circuit testers. Need next steps and thanks in advance.
DB
 
  #2  
Old 01-02-2012, 10:52 PM
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P0480-COOLING FAN 1 CONTROL CIRCUIT
When Monitored: With the ignition on. Battery voltage greater than 10 volts.
Set Condition: An open or shorted circuit is detected in the radiator fan relay control
circuit system. One Trip Fault.
POSSIBLE CAUSES
RADIATOR FAN RELAY INTERMITTENT OPERATION
INTERMITTENT CONDITION
GROUND CIRCUIT
FUSED B+ OUTPUT CIRCUIT
POWERTRAIN CONTROL MODULE
RADIATOR FAN RELAY CONTROL CIRCUIT SHORT TO GROUND
RADIATOR FAN RELAY CONTROL CIRCUIT OPEN (IPM)
RADIATOR FAN RELAY CONTROL CIRCUIT OPEN (PCM)
RADIATOR FAN RELAY CONTROL CIRCUIT SHORTED TO GROUND (IPM)
RADIATOR FAN RELAY CONTROL CIRCUIT SHORT TO GROUND (PCM)
INTEGRATED POWER MODULE (OPEN)
INTEGRATED POWER MODULE (SHORD)
 
  #3  
Old 01-04-2012, 01:01 PM
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Guess what?? You can't actually check the fuse if there isn't one there. All this time, the missing fuse didn't catch my eye. NO clue why it's missing. I never go into that box. Suspect a former tech may have borrowed it for another job either on my car or someone elses. Anyhow, I have a new fuse, a new relay, and I'm good to go.
 
  #4  
Old 01-04-2012, 08:49 PM
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ahhh KISS hehe Keep It Simple Stupid
 
  #5  
Old 04-06-2014, 07:32 PM
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Default Cooling fan issue 2005 T & C

I am also having a problem with the cooling fan circuit. Fuse good, jumped fan at relay plug, fans work. Ground circuit good. Wire from relay plug to fuse box is good. Possible PCM or wiring from fuse box to PCM. Any suggestions would be appreciated.
 
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