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Home >> Jeep >> 2021 >> Cherokee Trailhawk >> Repair and Diagnosis >> Engine Performance >> System >> 3.2L - DTCS P1239 To P2115 >> DTC Troubleshooting >> P1456-Fuel Tank Pressure Sensor Circuit Low >> Set Condition
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Set Condition

The Powertrain Control Module (PCM) detects that the Fuel Tank Pressure Sensor (FTP) input voltage is below the minimum acceptable value. One Trip Fault. Three good trips to turn off the MIL.