P1A05 FORD – Desired Engine Speed Signal

P1A05 FORD Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1A05 FORD Possible Causes

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

P1A05 FORD Description

The Transmission Control Module (TCM) continuously monitors the Controlled Area Network (CAN) network for a desired engine speed message from the Powertrain Control Module (PCM). This code is set when the desired engine speed is not within the expected range.