P1DAB FIAT – Vehicle Speed Undetermined

P1DAB FIAT Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1DAB FIAT Possible Causes

Faulty Powertrain Control Module (PCM),Faulty Transmission Control Module (TCM)

P1DAB FIAT Description

This diagnostic is a continuous test that monitors the Vehicle Speed Sensor (VSS) for lack of activity. The test will not run if a limp-in condition exists for the Manifold Absolute Temperature (MAP), Throttle Position, or Engine Coolant Temperature. If the VSS signal is below a calibrated value for a period of time after the vehicle is operated at a sufficient load, a Diagnostic Trouble Code (DTC) will set.