Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSJEEP2023GRAND CHEROKEE TRAILHAWK 4XEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 58 (5.7L - DTCS P1593 TO P2101)DTC TROUBLESHOOTINGP2098 DOWNSTREAM FUEL TRIM SYSTEM 2 LEANSET CONDITION
2023 Jeep Grand Cherokee Trailhawk 4xe
Set Condition
2023 Jeep Grand Cherokee Trailhawk 4xeSECTION Set Condition
WARNING: This page is about a different variant/trim than selected.
- The value of the downstream fuel trim is compared with the lean thresholds. Every time the value exceeds the calibrated threshold, a fail timer increments and mass flow through the exhaust is accumulated. If the fail timer and accumulated mass flow exceed the fail thresholds, the test fails and the diagnostic stops running for that trip. It takes two consecutive failed trips to set a DTC.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.