P1A03 FORD – Drive Motor ‘A’ Shutdown Circuit

P1A03 FORD Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1A03 FORD Possible Causes

Motor Shutdown (MSDN) circuit open,Faulty Transmission Control Module (TCM),Faulty Powertrain Control Module (PCM)

P1A03 FORD Description

The Transmission Control Module (TCM) continuously monitors the Motor Shutdown (MSDN) circuit and the Controlled Area Network (CAN) signal for an MSDN request from the Powertrain Control Module (PCM). This code is set when the PCM requests traction motor shutdown through the CAN signal or if there is an MSDN circuit fault. The traction motor inverter will be disabled.