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Home >> Chrysler >> 2021 >> Voyager LX, Gas >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P0440 To P060B >> Diagnosis And Testing >> P0480-Cooling Fan 1 Control Circuit (Variable Speed Fan) >> Possible Causes

Possible Causes

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  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .