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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 23 (8HP75 - DTCS P1D91-00 To U3002-00) >> DTC Troubleshooting >> P1DB9-00-TCM Ecu Reset Extended Low Voltage >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different variant/trim than selected.

The purpose of this diagnostic is to ensure power flow after a Transmission Control Module (TCM) reset during a mechanical limp-in action or after an under voltage reset due to a low voltage condition of the TCM source voltage.