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Home >> Jeep >> 2021 >> Grand Cherokee Trackhawk >> Repair and Diagnosis >> Engine Performance >> System >> 6.2L - DTCS P2628 To U1504 >> DTC Troubleshooting >> P26EA-Fuel Pump Control Module "B" >> Possible Causes

Possible Causes

Possible Causes
FUEL PUMP PWM CONTROL CIRCUIT SHORTED TO GROUND
FUEL PUMP ASSEMBLY

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

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