P0842 MERCEDES-BENZ – Transmission Fluid Pressure Sensor/Switch ‘A’ Circuit Low

P0842 MERCEDES-BENZ Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P0842 MERCEDES-BENZ Possible Causes

Low transmission fluid level,Dirty transmission fluid,Faulty Transmission Fluid Pressure Sensor/Switch ‘A’,Transmission Fluid Pressure Sensor/Switch ‘A’ harness or connectors,Transmission Fluid Pressure Sensor/Switch ‘A’ circuit is open or shorted,Transmission internal mechanical problem

P0842 MERCEDES-BENZ Description

The Transmission Control Module (TCM) monitors the Transmission Fluid Pressure Sensor/Switch signal. The TCM sets the OBDII code when the Transmission Fluid Pressure Sensor/Switch is not to factory specifications.