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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 323 (3.6L - DTCS P018D To PO571 - 1500) >> Diagnosis And Testing >> P0480-Cooling Fan 1 Control Circuit (Variable Speed Fan) >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2013 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.
POSSIBLE CAUSES
FUSED B+ CIRCUIT TO THE RADIATOR FAN ASSEMBLY OPEN/HIGH RESISTANCE
FUSED B+ CIRCUIT TO THE RADIATOR FAN ASSEMBLY SHORTED TO GROUND
GROUND CIRCUIT TO THE RADIATOR FAN ASSEMBLY OPEN/HIGH RESISTANCE
PWM RADIATOR FAN CONTROL CIRCUIT OPEN/HIGH RESISTANCE
PWM RADIATOR FAN CONTROL CIRCUIT SHORTED TO GROUND
PWM RADIATOR FAN ASSEMBLY
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  STANDARD PROCEDURE  .