VIDEO

Informace

Ford

Ford P066A

See the basic definition of a diagnostic error. This will help you to clarify the main causes of the fault code. You will understand the program of the control unit
Basic DTC analysis according to OBD2 protocol standard.

OBD2 or On-Board Diagnostics displays messages for basic group styles. More comprehensible code composition has been standard since 2000. The DTC code consists of five characters and its composition will be shown in this video

Insight into programming

The basic unit for the operation of any computer is the bit. Logic 0 and 1 are expressed by a single bit. Diagnostics The error code is composed of 16 bits. The first two bits define one of the four basic circuits. The video will show you a comprehensive overview of the composition of the error report

A diagnostically understandable description of the Diagnostic Trouble Code

Ford P066A

Basic error definition

Recirculation Motor Command - Commanded Position Not Reachable

Cause of DTC

The HVAC Module monitors the total door movement range. If the door movement is less then or greater than what the controller has stored in its memory, or if the door movement is stalled or stuck, this DTC will set. If the HVAC Module detects a valid door movement span in both directions, the DTC will change from Active to Stored and will stay in the controllers memory for 100 ignition cycles.