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Home >> Jeep >> 2021 >> Grand Cherokee L Laredo, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (5.7L - DTCS P0456 To P0629) >> DTC Troubleshooting >> P0480-Cooling Fan 1 Control Circuit/Open >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
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  .