Diagnostic Test
WARNING: This page is about a different car, the 2024 Jeep Grand Wagoneer L and 2024 Jeep Grand Wagoneer. However, it is still accessible from the selected car via links, so may be relevant.
READ AND RECORD DTCS - CHECK FOR THE DTC
NOTE:
If there are any other EGR, Turbocharger, or Intake system DTCs present, repair those DTCs before proceeding.
- Turn the ignition on.
- With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
- For future reference, with the scan tool, run and save a vehicle Scan Report and all related recorded data.
- Start the engine and let it idle for up to one minute.
- With the scan tool, read DTCs.
Is the DTC active or pending?
Yes
- Replace the Fuel Pressure Sensor in accordance with the Service Information.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .