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Home >> Jeep >> 2019 >> Grand Cherokee Trackhawk >> Repair and Diagnosis >> Engine Performance >> System >> 6.2L - DTCS P0139 To P0440 >> DTC Troubleshooting >> P025B-Fuel Pump Module Control Circuit Performance >> Diagnostic Test
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Diagnostic Test

ACTIVE DTC 

  1. Turn the ignition on, engine not running.
  2. With the scan tool, read DTCs.

    Is the DTC active?

    Yes 

    • Replace the Fuel Pump Control Module in accordance with the service information.
    • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

    No