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Home >> Jeep >> 2025 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 45 (2.0L - DTCS P0688 To P0A16) >> DTC Troubleshooting >> P06E4 Control Module Wake Up Circuit Performance >> 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
PIM WAKE UP SIGNAL SHORTED TO VOLTAGE
MISSING CAN MESSAGE FROM BCM FOR THE LEAK DETECTION OR REFUEL REQUEST
BODY CONTROL MODULE (BCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to:  2.0L - PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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