VIDEO

Informace

GMC

GMC P0148

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

GMC P0148

Basic error definition

Control Module. Internal Fault

Cause of DTC

At start up, the combustion preheater module (CPM) checks the current car configuration. The diagnostic trouble code (DTC) is stored if the car configuration in the combustion preheater module (CPM) does not correspond to the actual car configuration. The heater cannot be activated until the fault has been remedied and the diagnostic trouble code (DTC) has been erased. The diagnostic trouble code (DTC) can be diagnosed when the ignition is switched on.