P0815 MERCEDES-BENZ – Upshift Switch Circuit

P0815 MERCEDES-BENZ Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P0815 MERCEDES-BENZ Possible Causes

Faulty Upshift Switch,Upshift Switch harness is open or shorted,Upshift Switch circuit poor electrical connection

P0815 MERCEDES-BENZ Description

The Transmission Control Module (TCM) monitors the Upshift Switch Circuit signal. The TCM sets the OBDII code when the Upshift Switch Circuit signal is not to factory specifications.