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Home >> Dodge and Ram >> 2018 >> Charger Pursuit, 5.7L Eng VIN T, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (6.4L - DTCS P0563 To P1621) >> DTC Troubleshooting >> P1456-Fuel Tank Pressure Sensor Circuit Low >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
POSSIBLE CAUSES
5-VOLT SUPPLY CIRCUIT OPEN/HIGH RESISTANCE
5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND
FTP SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
FTP SENSOR SIGNAL CIRCUIT SHORTED TO THE SENSOR GROUND CIRCUIT
FUEL TANK PRESSURE SENSOR (FTP)
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .