P1901 – Turbine Shaft Speed Sensor Circuit Intermittent

P1901 Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1901 Possible Causes

Turbine Shaft Speed (TSS) sensor not installed correctly,Faulty Turbine Shaft Speed (TSS) sensor,Turbine Shaft Speed (TSS) sensor harness is open or shorted,Turbine Shaft Speed (TSS) sensor circuit poor electrical connection

P1901 Description

The Turbine Shaft Speed (TSS) sensor signal to the Powertrain Control Module (PCM) is irregular or interrupted.