VIDEO

Informace

Ford

Ford P1861

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 P1861

Basic error definition

The Steering Angle Sensor (SAS) lacks an ignition switch signal. Bus or message fault

Cause of DTC

The control modules transmit and receive information via a standardised communication network, CAN (Control Area Network). If the Steering Angle Sensor (SAS) registers that information from the Central Electronic Module (CEM) about the ignition switch position is missing or faulty for more than 2.5 seconds, the trouble code is set. The anti-spin warning lamp is illuminated. General warning lamp lit and the stability function is not working. The Steering Angle Sensor (SAS) is located in the Steering Wheel Module (SWM) from which it is supplied with power. It is however only the Steering Angle Sensor which communicates on the Control Area Network (CAN).