VIDEO

Informace

Alfa Romeo

Alfa Romeo P1CF4

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

Alfa Romeo P1CF4

Basic error definition

Battery Temperature Sensor Out Of Range High

Cause of DTC

Condition one: The battery temperature is compared to the Engine Coolant Temperature (ECT) Sensor signal at key on after a cold soak. If the battery temperature is above the ECT temperature by a calibrated threshold, then the battery temperature is compared to the Ambient Air Temperature (AAT) Sensor in the same manner. If this comparison also fails, then an IBS battery temperature failure is determined. Condition two: If the change in temperature change is larger than a calibrated threshold within a calibrated period of time, then an IBS battery temperature failure is determined.