VIDEO

Informace

Cadillac

Cadillac P0420

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

Cadillac P0420

Basic error definition

Catalyst Nízka účinnosť systému banka 1

Cause of DTC

DTC P0016, P0053, P0054, P0059, P0060, P0068, P0101, P0102, P0103, P0106, P0111, P0112, P0113, P0116, P0117, P0118, P0120, P0121, P0122, P0123, P0128, P0131, P0132, P0133, P0134, P0135, P0137, P0138, P013A, P013B, P013C, P013D, P013E, P013F, P0140, P0141, P014A, P014B, P0151, P0152, P0153, P0154, P0155, P0157, P0158, P0160, P0161, P0171, P0172, P0174, P0175, P0220, P0222, P0223, P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, ​​P0308, P0335, P0336, P0340, P0341, P0443, P0606, P0641, P0651, P1133, P1153, P1516, P2101, P2120, P2122, P2123, P2125, P2127, P2128, P2135, P2138, P2176, P2270, P2271, P2272 alebo P2273 nie je nastavené. Otáčky motora je väčší než 900 otáčok za minútu a rýchlosť vozidla je vyššia ako 43 km h (27 mph) po dobu dlhšiu ako 20 s. Hladina paliva je vyššia ako 2%, ak nie je hladina paliva sada DTC, alebo väčšia ako 0% v prípade, že je nastavená hladina paliva DTC. Teplota chladiacej kvapaliny motora (ECT) je v rozmedzí 73-128 ° C (164-262 ° F). Barometrického tlaku (BARO) je väčší ako 70 kPa. Katalyzátor vypočítaná teplota sa pohybuje v rozmedzí 525-800 ° C (977-1,472 ° F). Teploty nasávaného vzduchu (IAT) je medzi -20 a + 100 ° C (-4 a + 212 ° F). Je napätie batérie väčšie ako 11 V. požiadavka krútiaceho momentu je menšia ako 5 N · m. Motor je v spomalení prerušenie dodávky paliva akciu po dobu dlhšiu ako 2,35 s. Ohriata lambda sondy (HO2S) 1 napätie je nižšia ako 300 mV pred spomalenie prerušenie dodávky paliva výstupu. HO2S 2 napätie je nižšia ako 101 mV pred dobeh prerušenie dodávky paliva výstupu 2,5 s.