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Home › Jeep › 2019 › Grand Cherokee Trackhawk › Repair and Diagnosis › Engine Performance › System › 6.2L - DTCS P0139 To P0440 › DTC Troubleshooting › P027B-Fuel Pump Module 2 Control Circuit Performance › Possible Causes

Possible Causes

Possible Causes
FUEL PUMP CONTROL MODULE 2

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .