P1DB2 FIAT – Actuator Supply Voltage ‘A’ Circuit

P1DB2 FIAT Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1DB2 FIAT Possible Causes

Faulty Transmission Control Module (TCM),Transmission Control Module (TCM) harness is open or shorted,Transmission Control Module (TCM) circuit poor electrical connection

P1DB2 FIAT Description

The voltage supply circuit(s) for the solenoids and pressure regulators are monitored for open circuits, shorts to ground, and shorts to voltage. If a failure is detected, the Transmission Control Module (TCM) will deactivate the affected power supply circuit and set a corresponding Diagnostic Trouble Code (DTC) relevant to the fault that was detected.