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Home >> Dodge and Ram >> 2023 >> ProMaster 2500 >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> 3.6L - DTCS P0440 To P04FC >> DTC Troubleshooting >> P0481-Cooling Fan 2 Control Circuit/Open >> Possible Causes

Possible Causes

POSSIBLE CAUSES
(K173) RADIATOR FAN RELAY CONTROL CIRCUIT SHORTED TO GROUND
(K173) RADIATOR FAN RELAY CONTROL CIRCUIT OPEN/HIGH RESISTANCE
RADIATOR FAN HIGH RELAY
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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