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Home >> Jeep >> 2008 >> Commander Base, 4.7 N, AWD >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0339 To P0507 >> P0480-Cooling Fan 1 Control Circuit >> Possible Causes

Possible Causes

Possible Causes 
FUSED B+ CIRCUITS
RADIATOR FAN LOW RELAY CONTROL CIRCUIT OPEN
RADIATOR FAN LOW RELAY CONTROL CIRCUIT SHORTED TO GROUND
RADIATOR FAN LOW RELAY
FRONT CONTROL MODULE (FCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.