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Home >> Jeep >> 2025 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 108 (Hybrid Control Processor Module (HCP) - DTCS P0E7B-00 To P149F-00) >> DTC Troubleshooting >> P149A-00 Cooling Fan Module Internal >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2025 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
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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