VIDEO

Informace

Hummer

Hummer P0430

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

Hummer P0430

Basic error definition

Catalyst System Low Efficiency Bank 2

Cause of DTC

DTC P0030, P0031, P0036, P0037, P0038, P0068, P0106, P0107, P0108, P0112, P0113, P0117, P0118, P0120, P0121, P0122, P0123, P0125, P0128, P0130, P0131, P0132, P0133, P0134, P0135, P0136, P0137, P0138, P0140, P0141, P0171, P0172, P0201, P0202, P0203, P0204, P0205, P0206, P0207, P0208, P0220, P0300, P0315, P0326, P0327, P0336, P0340, P0341, P0442, P0446, P0452, P0453, P0455, P0496, P0500, P0502, P0506, P0507, P0601, P0602, P0606, P0641, P0722, P0723, P1133, P1134, P1516, P1621, P2135, P2138, or P2176 is not set. Before the ECM performs the idle test, the vehicle must be driven under the following conditions: The engine speed is greater than 1,300 RPM. The engine run time is greater than 100 s. Both conditions exist for greater than 16 s. The vehicle speed is less than 1.6 km h (1 mph). The throttle position is less than 2 %. The Mass Air Flow (MAF) is between 2-21 g s. The engine is operating in Closed Loop. The fuel trim learn is enabled. The Engine Coolant Temperature (ECT) is between 45-129°C (113-264°F). The Barometric Pressure (BARO) is greater than 70 kPa. The Catalytic Converter Calculated Temperature parameter is between 600-900°C (1,112-1,652°F) for greater than 6 min. The Intake Air Temperature (IAT) is between -20 and +250°C (-4 and +482°F). The battery voltage is greater than 11 V. The transmission is in Drive Range--Automatic transmissions only. The short term fuel trim is between -10 and +10 %. The engine is idling for less than 50 s. This diagnostic attempts one test during each valid idle period when the above conditions have been met. This diagnostic attempts up to 8 tests during each drive cycle.