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Home >> Jeep >> 2023 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 30 (Hybrid Control Processor Module (HCP) - DTCS P0E34-00 To P1ABD-00) >> DTC Troubleshooting >> P149A-00 Cooling Fan Module Internal >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes
RADIATOR FAN PWM CIRCUIT OPEN
RADIATOR FAN PWM CIRCUIT SHORT TO GROUND
RADIATOR FAN ASSEMBLY
POWER INVERTER MODULE (PIM)

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

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