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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> 8HP50/850RE - DTCS P0219-00 To P1D91-00 >> DTC Troubleshooting >> P07B3-00 - Transmission Park Position Sensor/Switch "A" Circuit Low >> Possible Causes

Possible Causes

Possible Causes
SENSOR SUPPLY VOLTAGE CIRCUIT OPEN
PARK POSITION SENSOR SIGNAL CIRCUIT OPEN
PARK POSITION SENSOR GROUND CIRCUIT OPEN
PARK POSITION SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
PARK POSITION SENSOR
TRANSMISSION CONTROL MODULE (TCM)

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