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Home >> Dodge and Ram >> 2023 >> ProMaster 2500 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> 948TE/9HP48 - DTCS P1D91-00 To P2802-00 >> DTC Troubleshooting >> P1DFB-00-Transmission Range Sensor No Input >> Possible Causes

Possible Causes

Possible Causes
PRESSURE CONTROL SOLENOID - LINE PRESSURE CIRCUIT OPEN OR HIGH RESISTANCE
PRESSURE CONTROL SOLENOID - LINE PRESSURE CIRCUIT SHORTED TO GROUND
PRESSURE CONTROL SOLENOID - LINE PRESSURE CIRCUIT SHORTED TO VOLTAGE
PRESSURE CONTROL SOLENOID - LINE PRESSURE
TRANSMISSION CONTROL MODULE (TCM)

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