VIDEO

Informace

GMC

GMC P11AF

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 P11AF

Basic error definition

HO2S Performance - Signal High During Moderate Load Sensor 2

Cause of DTC

P11AF or P11B2 The engine run time is greater than 10 s. The engine speed is between 1,300 and 2,600 RPM. The intake air temperature is between -43 to +123°C (-45 to +253°F). The BARO pressure is between 75-110 kPa (11-16 psi). The battery voltage is greater than 11 V. The EGR is commanded ON and the exhaust gas temperature sensor 2 is between 100-1,000°C (212-1,832° F). The DPF regeneration is not active. The fuel level is greater than 15 percent. The DTCs run continuously once the above conditions are met.