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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> Transmission >> Transfer Case >> (Torque Vectoring Module - Electrical Diagnostics) >> DTC Troubleshooting >> C2620-64 - Left Motor Control - Signal Plausibility Failure >> Possible Causes

Possible Causes

Possible Causes
LEFT TORQUE MOTOR SIGNAL CIRCUIT(S) SHORTED TO GROUND
LEFT TORQUE MOTOR SIGNAL CIRCUIT(S) SHORTED TO VOLTAGE
LEFT TORQUE MOTOR SIGNAL CIRCUIT(S) SHORTED TOGETHER
LEFT TORQUE MOTOR
TORQUE VECTORING MODULE (TVM)

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