Imodoka OBD2 Ikigo gishinzwe kugenzura itumanaho

Ibisobanuro bigufi:

Ushobora kuba warahuye na OBD2 usanzwe:

Wigeze ubona urumuri rwerekana imikorere idahwitse?

Ngiyo imodoka yawe ikubwira ko hari ikibazo.Niba usuye umukanishi, azakoresha scaneri ya OBD2 kugirango amenye ikibazo.

Kubikora, azahuza umusomyi wa OBD2 na OBD2 16 pin ihuza hafi yimodoka.

Ibi bituma asoma code ya OBD2 bita Diagnostic Trouble Code (DTCs) kugirango asuzume kandi akemure ikibazo.

Umuhuza wa OBD2

Ihuza rya OBD2 rigufasha kubona amakuru ava mumodoka yawe byoroshye.Bisanzwe SAE J1962 yerekana ubwoko bubiri bwa OBD2 16-pin ihuza ubwoko (A & B).

Mu gishushanyo ni urugero rwubwoko A OBD2 pin ihuza (nanone rimwe na rimwe byitwa Data Link Connector, DLC).

Ohereza imeri kuri twe

Ibicuruzwa birambuye

Ibicuruzwa

Ibisobanuro

Ibintu bike ugomba kumenya:

Ihuza rya OBD2 riri hafi yimodoka yawe, ariko irashobora kwihisha inyuma yumupfundikizo

Pin 16 itanga ingufu za bateri (akenshi mugihe umuriro uzimye)

OBD2 pinout biterwa na protocole y'itumanaho

Porotokole ikunze kugaragara cyane ni CAN (binyuze kuri ISO 15765), bivuze ko pin 6 (CAN-H) na 14 (CAN-L) zizahuzwa

Mubisuzumabumenyi, OBD2, ni 'protocole yo hejuru' (nkururimi).CAN nuburyo bwo gutumanaho (nka terefone).

By'umwihariko, igipimo cya OBD2 cyerekana umuhuza wa OBD2, incl.urutonde rwa protocole eshanu ishobora gukora (reba hano hepfo).Byongeye kandi, guhera mu 2008, bisi ya CAN (ISO 15765) yabaye protocole iteganijwe kuri OBD2 mumodoka zose zagurishijwe muri Amerika.

ISO 15765 bivuga urutonde rwibibuza gukoreshwa kurwego rwa CAN (narwo rusobanurwa muri ISO 11898).Umuntu yavuga ko ISO 15765 ari nka "CAN kumodoka".

By'umwihariko, ISO 15765-4 isobanura umubiri, amakuru ahuza urwego hamwe nurusobe rwurusobe, ishaka guhuza ibipimo bya bisi ya bisi kubikoresho byo kwipimisha hanze.ISO 15765-2 nayo isobanura urwego rwo gutwara (ISO TP) rwo kohereza amakadiri ya CAN hamwe nuburemere burenze 8 bytes.Ibipimo ngenderwaho nabyo rimwe na rimwe byitwa Itumanaho rya Diagnostic hejuru ya CAN (cyangwa DoCAN).Reba kandi 7 moderi ya OSI yerekana urugero.

OBD2 irashobora kandi kugereranwa nizindi protocole zo hejuru (urugero J1939, CANopen).

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