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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> 8HP50/850RE - DTCS P1D92-00 To U3002-00 >> DTC Troubleshooting >> P1DD1-00-Input-Turbine Speed Sensor 1 Gradient Fault >> Possible Causes

Possible Causes

Possible Causes
P4 ANNULUS DRUM
TRANSMISSION CONTROL MODULE (TCM)

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