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Home >> Jeep >> 2025 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 101 (Hybrid Control Processor Module (HCP) - DTCS P062F-00 To P06A3-00) >> DTC Troubleshooting >> P0691-00 Cooling Fan 1 Control Circuit Low >> 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 B+ FEED CIRCUIT OPEN
RADIATOR FAN GROUND CIRCUIT OPEN
RADIATOR FAN CONTROL SIGNAL 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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