Rau OBD2 End qhib & ncua kev ua haujlwm ntawm tus pin cable ,thov nias ntawm no
Standard OBD2 Pinout
Yog kawg:wiki
Hom
Muaj 10 hom kev ua haujlwm tau piav qhia hauv OBD-II tus qauv tshiab SAE J1979. Lawv yog raws li nram no:
| Hom (hex) | hauj lwm |
|---|---|
| 01 | Qhia cov ntaub ntawv tam sim no |
| 02 | Qhia cov ntaub ntawv khov khov |
| 03 | Qhia qhov teeb meem Diagnostic Codes khaws cia |
| 04 | Clear Diagnostic Trouble Codes thiab khaws cia qhov tseem ceeb |
| 05 | Cov qhabnias xeem, oxygen sensor saib xyuas (tsis yog CAN nkaus xwb) |
| 06 | Cov qhabnias xeem, Lwm yam kev tivthaiv/kev saib xyuas (Cov qhabnias xeem, oxygen sensor saib xyuas rau CAN nkaus xwb) |
| 07 | Qhia txog cov teeb meem kev kuaj mob uas tseem tshuav (kuaj pom thaum lub caij tsav tsheb tam sim no lossis lub sijhawm kawg) |
| 08 | Tswj kev ua haujlwm ntawm on-board tivthaiv / system |
| 09 | Thov cov ntaub ntawv tsheb |
| 0A | Mus tas li Diagnostic Trouble Codes (DTCs) (Cleared DTCs) |
Cov tuam txhab tsheb tsis tas yuav txhawb nqa txhua hom. Txhua tus neeg tsim khoom tuaj yeem txhais cov qauv ntxiv saum toj no #9 (e.g.: hom 22 Raws li tau hais los ntawm SAE J2190 rau Ford / GM, hom 21 rau Toyota) rau lwm cov ntaub ntawv eg. qhov voltage ntawm traction roj teeb nyob rau hauv a hybrid hluav taws xob tsheb (HEV).[2]
Standard PIDs
Cov lus hauv qab no qhia txog tus qauv OBD-II PIDs raws li tau hais los ntawm SAE J1979. Cov lus teb xav tau rau txhua tus PID tau muab, nrog rau cov ntaub ntawv hais txog yuav ua li cas txhais cov lus teb rau hauv cov ntaub ntawv tseem ceeb. Ib zaug ntxiv, tsis yog txhua lub tsheb yuav txhawb nqa tag nrho PIDs thiab tuaj yeem muaj cov chaw tsim khoom-txhais kev cai PIDs uas tsis tau txhais hauv OBD-II tus qauv.
Nco ntsoov cov hom 1 thiab 2 yeej ib txwm zoo tib yam, tsuas yog Mode 1 muab cov ntaub ntawv tam sim no, hos Mode 2 muab ib qho snapshot ntawm tib cov ntaub ntawv coj los ntawm qhov taw tes thaum qhov teeb meem kev kuaj mob kawg tau teeb tsa. Cov kev zam yog PID 01, uas tsuas muaj nyob rau hauv Hom 1, thiab PID 02, uas tsuas muaj nyob rau hauv Hom 2. Yog hom 2 PID 02 rov zero, ces tsis muaj snapshot thiab tag nrho lwm hom 2 cov ntaub ntawv tsis muaj qab hau.
Thaum siv Bit-Encoded-Notation, ntau npaum li C4 txhais tau tias me ntsis 4 los ntawm cov ntaub ntawv byte C. Txhua me ntsis yog suav los ntawm 0 rau 7, XLR RJ45 Adapter Cable 7 yog qhov tseem ceeb tshaj me ntsis thiab 0 yog qhov tsawg kawg me ntsis.
| A | B | C | D | ||||||||||||||||||||||||||||
| A7 | A6 | A5 | A4 | A3 | A2 | A1 | A0 | B7 | B6 | B5 | B4 | B3 | B2 | B1 | B0 | C7 | C6 | C5 | C4 | C3 | C2 | C1 | C0 | D7 | D6 | D5 | D4 | D3 | D2 | D1 | D0 |
Hom 01
| PID (hex) |
PID (Dec) |
Cov ntaub ntawv bytes rov qab | hauj lwm | Tus nqi qis | Max tus nqi | Chav tsev | Formula[a] |
|---|---|---|---|---|---|---|---|
| 00 | 0 | 4 | Txhawb PIDs [01 – 20] | ntsis encoded [A7..D 0] == [PID $01..PIB $20] Saib hauv qab no | |||
| 01 | 1 | 4 | Saib xyuas qhov xwm txheej txij li DTCs tshem tawm. (Xws li teeb pom kev ua haujlwm tsis zoo (MIL) xwm txheej thiab tus lej ntawm DTCs.) | ntsis encoded. Saib hauv qab no | |||
| 02 | 2 | 2 | Khov DTC | ||||
| 03 | 3 | 2 | Roj system xwm txheej | ntsis encoded. Saib hauv qab no | |||
| 04 | 4 | 1 | xam cav load | 0 | 100 | % | {\displaystyle {\tfrac {100}{255}}A} (los yog {\displaystyle {\tfrac {A}{2.55}}}) |
| 05 | 5 | 1 | Cav coolant kub | -40 | 215 | °C | {\Cov qauv duab A-40} |
| 06 | 6 | 1 | Lub sij hawm luv luv roj trim-Bank 1 | -100 (Txo roj: Ntau dhau lawm) | 99.2 (Ntxiv Roj: Lean dhau lawm) | % |
{\displaystyle {\frac {100}{128}}A-100}
(los yog {\displaystyle {\tfrac {A}{1.28}}-100} ) |
| 07 | 7 | 1 | Lub sij hawm ntev roj trim-Bank 1 | ||||
| 08 | 8 | 1 | Lub sij hawm luv luv roj trim-Bank 2 | ||||
| 09 | 9 | 1 | Lub sij hawm ntev roj trim-Bank 2 | ||||
| 0A | 10 | 1 | Roj siab (ntsuas siab) | 0 | 765 | kPa ua | {\displaystyle 3A} |
| 0B | 11 | 1 | Tau txais manifold siab siab | 0 | 255 | kPa ua | {\displaystyle A} |
| 0C | 12 | 2 | Cav RPM | 0 | 16,383.75 | rpm ua | {\displaystyle {\frac {256A+B}{4}}} |
| 0D | 13 | 1 | Tsheb ceev | 0 | 255 | km/h | {\displaystyle A} |
| 0E | 14 | 1 | Lub sijhawm ua ntej | -64 | 63.5 | ° ua ntej TDC | {\displaystyle {\frac {A}{2}}-64} |
| 0F | 15 | 1 | Txais cua kub | -40 | 215 | °C | {\Cov qauv duab A-40} |
| 10 | 16 | 2 | MAF cua ntws tus nqi | 0 | 655.35 | grams / sec | {\displaystyle {\frac {256A+B}{100}}} |
| 11 | 17 | 1 | Throttle txoj hauj lwm | 0 | 100 | % | {\displaystyle {\tfrac {100}{255}}A} |
| 12 | 18 | 1 | Commanded thib ob huab cua xwm txheej | ntsis encoded. Saib hauv qab no | |||
| 13 | 19 | 1 | Cov pa oxygen sensors tam sim no (nyob rau hauv 2 tsev txhab nyiaj) | [A0..A3] == Bank 1, Sensors 1-4. [A4..A 7] == Bank 2… | |||
| 14 | 20 | 2 | Oxygen Sensor 1 A: voltage B: Lub sij hawm luv luv roj trim |
0 -100 |
1.275 99.2 |
volts% |
{\displaystyle {\frac {A}{200}}}
{\displaystyle {\frac {100}{128}}B-100}
(yog B==$FF, sensor tsis siv nyob rau hauv trim xam) |
| 15 | 21 | 2 | Oxygen Sensor 2 A: voltage B: Lub sij hawm luv luv roj trim |
||||
| 16 | 22 | 2 | Oxygen Sensor 3 A: voltage B: Lub sij hawm luv luv roj trim |
||||
| 17 | 23 | 2 | Oxygen Sensor 4 A: voltage B: Lub sij hawm luv luv roj trim |
||||
| 18 | 24 | 2 | Oxygen Sensor 5 A: voltage B: Lub sij hawm luv luv roj trim |
||||
| 19 | 25 | 2 | Oxygen Sensor 6 A: voltage B: Lub sij hawm luv luv roj trim |
||||
| 1A | 26 | 2 | Oxygen Sensor 7 A: voltage B: Lub sij hawm luv luv roj trim |
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| 1B | 27 | 2 | Oxygen Sensor 8 A: voltage B: Lub sij hawm luv luv roj trim |
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| 1C | 28 | 1 | OBD qauv lub tsheb no ua raws li | ntsis encoded. Saib hauv qab no | |||
| 1D | 29 | 1 | Cov pa oxygen sensors tam sim no (nyob rau hauv 4 tsev txhab nyiaj) | Zoo ib yam li PID 13, tab sis [A0..A 7] == [B1S1, B1S2, B2S1, B2S2, B3S1, B3S2, B4S1, B4S 2] | |||
| 1E | 30 | 1 | Pab txhawb kev nkag | A0 == Fais fab tuag (PTO) xwm txheej (1 == active) [A1..A 7] tsis siv |
|||
| 1F | 31 | 2 | Khiav lub sijhawm txij li lub cav pib | 0 | 65,535 | vib nas this | {\Displaystyle 256A + B} |
| 20 | 32 | 4 | Txhawb PIDs [21 – 40] | ntsis encoded [A7..D 0] == [PID $21..PID $40] Saib hauv qab no | |||
| 21 | 33 | 2 | Qhov deb tau mus nrog malfunction qhia teeb (MIL) ntawm | 0 | 65,535 | km | {\Displaystyle 256A + B} |
| 22 | 34 | 2 | Roj Rail Siab (piv rau manifold nqus tsev vacuum) | 0 | 5177.265 | kPa ua | {\displaystyle 0.079(256A+B)} |
| 23 | 35 | 2 | Roj Rail Ntsuas Siab (diesel, los yog roj av direct txhaj) | 0 | 655,350 | kPa ua | {\displaystyle 10(256A+B)} |
| 24 | 36 | 4 | Oxygen Sensor 1 AB: Fuel-Air Equivalence Ratio CD: voltage |
0 0 |
< 2 < 8 |
piv V |
{\displaystyle {\frac {2}{65536}}(256A+B)}
{\displaystyle {\frac {8}{65536}}(256C + D)}
|
| 25 | 37 | 4 | Oxygen Sensor 2 AB: Fuel-Air Equivalence Ratio CD: voltage |
||||
| 26 | 38 | 4 | Oxygen Sensor 3 AB: Fuel-Air Equivalence Ratio CD: voltage |
||||
| 27 | 39 | 4 | Oxygen Sensor 4 AB: Fuel-Air Equivalence Ratio CD: voltage |
||||
| 28 | 40 | 4 | Oxygen Sensor 5 AB: Fuel-Air Equivalence Ratio CD: voltage |
||||
| 29 | 41 | 4 | Oxygen Sensor 6 AB: Fuel-Air Equivalence Ratio CD: voltage |
||||
| 2A | 42 | 4 | Oxygen Sensor 7 AB: Fuel-Air Equivalence Ratio CD: voltage |
||||
| 2B | 43 | 4 | Oxygen Sensor 8 AB: Fuel-Air Equivalence Ratio CD: voltage |
||||
| 2C | 44 | 1 | txib EGR | 0 | 100 | % | {\displaystyle {\tfrac {100}{255}}A} |
| 2D | 45 | 1 | EGR yuam kev | -100 | 99.2 | % | {\displaystyle {\tfrac {100}{128}}A-100} |
| 2E | 46 | 1 | Commanded evaporative ntxuav | 0 | 100 | % | {\displaystyle {\tfrac {100}{255}}A} |
| 2F | 47 | 1 | Roj Tank Level Input | 0 | 100 | % | {\displaystyle {\tfrac {100}{255}}A} |
| 30 | 48 | 1 | Warm-ups txij li cov lej tshem tawm | 0 | 255 | suav | {\displaystyle A} |
| 31 | 49 | 2 | Qhov deb tau taug kev txij li cov lej tshem tawm | 0 | 65,535 | km | {\Displaystyle 256A + B} |
| 32 | 50 | 2 | Evap. Qhov System Vapor Pressure | -8,192 | 8191.75 | Pa | {\displaystyle {\frac {256A+B}{4}}}(AB is ob qho ntxiv kos npe)[3] |
| 33 | 51 | 1 | Tsis Muaj Barometric Siab | 0 | 255 | kPa ua | {\displaystyle A} |
| 34 | 52 | 4 | Oxygen Sensor 1 AB: Fuel-Air Equivalence Ratio CD: Tam sim no |
0 -128 |
< 2 <128 |
piv Ma |
{\displaystyle {\frac {2}{65536}}(256A+B)}
{\displaystyle {\frac {256C + D}{256}}-128}
los yog {\displaystyle C+{\frac {D}{256}}-128} |
| 35 | 53 | 4 | Oxygen Sensor 2 AB: Fuel-Air Equivalence Ratio CD: Tam sim no |
||||
| 36 | 54 | 4 | Oxygen Sensor 3 AB: Fuel-Air Equivalence Ratio CD: Tam sim no |
||||
| 37 | 55 | 4 | Oxygen Sensor 4 AB: Fuel-Air Equivalence Ratio CD: Tam sim no |
||||
| 38 | 56 | 4 | Oxygen Sensor 5 AB: Fuel-Air Equivalence Ratio CD: Tam sim no |
||||
| 39 | 57 | 4 | Oxygen Sensor 6 AB: Fuel-Air Equivalence Ratio CD: Tam sim no |
||||
| 3A | 58 | 4 | Oxygen Sensor 7 AB: Fuel-Air Equivalence Ratio CD: Tam sim no |
||||
| 3B | 59 | 4 | Oxygen Sensor 8 AB: Fuel-Air Equivalence Ratio CD: Tam sim no |
||||
| 3C | 60 | 2 | Catalyst kub: Lub txhab nyiaj 1, Sensor 1 | -40 | 6,513.5 | °C | {\displaystyle {\frac {256A+B}{10}}-40} |
| 3D | 61 | 2 | Catalyst kub: Lub txhab nyiaj 2, Sensor 1 | ||||
| 3E | 62 | 2 | Catalyst kub: Lub txhab nyiaj 1, Sensor 2 | ||||
| 3F | 63 | 2 | Catalyst kub: Lub txhab nyiaj 2, Sensor 2 | ||||
| 40 | 64 | 4 | Txhawb PIDs [41 – 60] | ntsis encoded [A7..D 0] == [PID $41..PIB $60] Saib hauv qab no | |||
| 41 | 65 | 4 | Saib xyuas cov xwm txheej no lub voj voog tsav | ntsis encoded. Saib hauv qab no | |||
| 42 | 66 | 2 | Tswj module voltage | 0 | 65.535 | V | {\displaystyle {\frac {256A+B}{1000}}} |
| 43 | 67 | 2 | Tsis muaj nqi load | 0 | 25,700 | % | {\displaystyle {\tfrac {100}{255}}(256A+B)} |
| 44 | 68 | 2 | Fuel-Air commanded equivalence ratio | 0 | < 2 | piv | {\displaystyle {\tfrac {2}{65536}}(256A+B)} |
| 45 | 69 | 1 | txheeb ze throttle txoj hauj lwm | 0 | 100 | % | {\displaystyle {\tfrac {100}{255}}A} |
| 46 | 70 | 1 | Ambient cua kub | -40 | 215 | °C | {\Cov qauv duab A-40} |
| 47 | 71 | 1 | Absolute throttle txoj hauj lwm B | 0 | 100 | % | {\displaystyle {\frac {100}{255}}A} |
| 48 | 72 | 1 | Absolute throttle txoj hauj lwm C | ||||
| 49 | 73 | 1 | Accelerator pedal txoj hauj lwm D | ||||
| 4A | 74 | 1 | Accelerator pedal txoj hauj lwm E | ||||
| 4B | 75 | 1 | Accelerator pedal txoj hauj lwm F | ||||
| 4C | 76 | 1 | Kev cai throttle actuator | ||||
| 4D | 77 | 2 | Lub sijhawm khiav nrog MIL rau | 0 | 65,535 | feeb | {\Displaystyle 256A + B} |
| 4E | 78 | 2 | Lub sij hawm txij li cov teeb meem codes cleared | ||||
| 4F | 79 | 4 | Tus nqi siab tshaj plaws rau Fuel-Air equivalence ratio, oxygen sensor voltage, oxygen sensor tam sim no, thiab noj manifold kiag li siab | 0, 0, 0, 0 | 255, 255, 255, 2550 | piv, V, Ma, kPa ua | A, B, C, D * 10 |
| 50 | 80 | 4 | Tus nqi siab tshaj plaws rau huab cua txaus tus nqi los ntawm huab cua huab cua txaus sensor | 0 | 2550 | g/s | A* 10, B, C, thiab D tau tshwj tseg rau kev siv yav tom ntej |
| 51 | 81 | 1 | Hom roj | Los ntawm roj hom rooj saib hauv qab no | |||
| 52 | 82 | 1 | Ethanol roj % | 0 | 100 | % | {\displaystyle {\tfrac {100}{255}}A} |
| 53 | 83 | 2 | Absolute Evap system Vapor Pressure | 0 | 327.675 | kPa ua | {\displaystyle {\frac {256A+B}{200}}} |
| 54 | 84 | 2 | Evap system vapor siab | -32,767 | 32,768 | Pa | ((A * 256)+B)-32767 |
| 55 | 85 | 2 | Lub sij hawm luv luv Secondary oxygen sensor trim, A: txhab nyiaj 1, B: txhab nyiaj 3 | -100 | 99.2 | % | {\displaystyle {\frac {100}{128}}A-100}{\displaystyle {\frac {100}{128}}B-100} |
| 56 | 86 | 2 | Lub sij hawm ntev theem nrab oxygen sensor trim, A: txhab nyiaj 1, B: txhab nyiaj 3 | ||||
| 57 | 87 | 2 | Lub sij hawm luv luv Secondary oxygen sensor trim, A: txhab nyiaj 2, B: txhab nyiaj 4 | ||||
| 58 | 88 | 2 | Lub sij hawm ntev theem nrab oxygen sensor trim, A: txhab nyiaj 2, B: txhab nyiaj 4 | ||||
| 59 | 89 | 2 | Roj tsheb ciav hlau siab kawg | 0 | 655,350 | kPa ua | {\displaystyle 10(256A+B)} |
| 5A | 90 | 1 | Relative accelerator pedal txoj hauj lwm | 0 | 100 | % | {\displaystyle {\tfrac {100}{255}}A} |
| 5B | 91 | 1 | Hybrid roj teeb pob tseem tshuav lub neej | 0 | 100 | % | {\displaystyle {\tfrac {100}{255}}A} |
| 5C | 92 | 1 | Cav roj kub | -40 | 210 | °C | {\Cov qauv duab A-40} |
| 5D | 93 | 2 | Lub sijhawm txhaj tshuaj roj | -210.00 | 301.992 | ° | {\displaystyle {\frac {256A+B}{128}}-210} |
| 5E | 94 | 2 | Cav roj tus nqi | 0 | 3276.75 | L/h | {\displaystyle {\frac {256A+B}{20}}} |
| 5F | 95 | 1 | emission yuav tsum tau rau lub tsheb uas tsim | Bit Encoded | |||
| 60 | 96 | 4 | Txhawb PIDs [61 – 80] | ntsis encoded [A7..D 0] == [PID $61..PIB $80] Saib hauv qab no | |||
| 61 | 97 | 1 | Tsav tsheb xav tau cav – feem pua torque | -125 | 125 | % | A-125 |
| 62 | 98 | 1 | Qhov tseeb cav – feem pua torque | -125 | 125 | % | A-125 |
| 63 | 99 | 2 | Cav siv torque | 0 | 65,535 | Nm | {\Displaystyle 256A + B} |
| 64 | 100 | 5 | Cav feem pua torque cov ntaub ntawv | -125 | 125 | % | A-125 UAS B-125 Cav point 1 C-125 Cav point 2 D-125 Cav point 3 E-125 Cav point 4 |
| 65 | 101 | 2 | Kev pab tswv yim / tso zis txhawb | Bit Encoded | |||
| 66 | 102 | 5 | Huab cua flow sensor | ||||
| 67 | 103 | 3 | Cav coolant kub | ||||
| 68 | 104 | 7 | Txais cua kub sensor | ||||
| 69 | 105 | 7 | Commanded EGR thiab EGR yuam kev | ||||
| 6A | 106 | 5 | Commanded Diesel intake air flow control thiab txheeb ze intake air flow position | ||||
| 6B | 107 | 5 | Exhaust gas recirculation kub | ||||
| 6C | 108 | 5 | Commanded throttle actuator tswj thiab txheeb ze throttle txoj hauj lwm | ||||
| 6D | 109 | 6 | Roj siab tswj system | ||||
| 6E | 110 | 5 | Txhaj tshuaj tswj qhov system | ||||
| 6F | 111 | 3 | Turbocharger compressor inlet siab | ||||
| 70 | 112 | 9 | Boost tswj siab | ||||
| 71 | 113 | 5 | Variable Geometry turbo (VGT) tswj | ||||
| 72 | 114 | 5 | Pov tseg tswj | ||||
| 73 | 115 | 5 | Tso pa tawm | ||||
| 74 | 116 | 5 | Turbocharger RPM | ||||
| 75 | 117 | 7 | Turbocharger kub | ||||
| 76 | 118 | 7 | Turbocharger kub | ||||
| 77 | 119 | 5 | Them cua txias txias (CACT) | ||||
| 78 | 120 | 9 | Cua kub kub (EGT) Lub txhab nyiaj 1 | Tshwj xeeb PID. Saib hauv qab no | |||
| 79 | 121 | 9 | Cua kub kub (EGT) Lub txhab nyiaj 2 | Tshwj xeeb PID. Saib hauv qab no | |||
| 7A | 122 | 7 | Diesel particulate lim (DPF) | ||||
| 7B | 123 | 7 | Diesel particulate lim (DPF) | ||||
| 7C | 124 | 9 | Diesel Particulate lim (DPF) kub | ||||
| 7D | 125 | 1 | NOx NTE (Tsis-To-Exceed) tswj cheeb tsam xwm txheej | ||||
| 7E | 126 | 1 | PM NTE (Tsis-To-Exceed) tswj cheeb tsam xwm txheej | ||||
| 7F | 127 | 13 | Lub sijhawm ua haujlwm ntawm lub cav | ||||
| 80 | 128 | 4 | Txhawb PIDs [81 – A0] | ntsis encoded [A7..D 0] == [PID $81..PID $A0] Saib hauv qab no | |||
| 81 | 129 | 21 | Lub cav khiav lub sij hawm rau Kev Pabcuam Emissions Control Device(AECD) | ||||
| 82 | 130 | 21 | Lub cav khiav lub sij hawm rau Kev Pabcuam Emissions Control Device(AECD) | ||||
| 83 | 131 | 5 | NOx sensor | ||||
| 84 | 132 | Manifold nto kub | |||||
| 85 | 133 | NOx reagent system | |||||
| 86 | 134 | Piculate teeb meem (PM) sensor | |||||
| 87 | 135 | Tau txais manifold siab siab | |||||
| A0 | 160 | 4 | Txhawb PIDs [A1 – C0] | ntsis encoded [A7..D 0] == [PID $A1..PID $C0] Saib hauv qab no | |||
| C0 | 192 | 4 | Txhawb PIDs [C1 – E0] | ntsis encoded [A7..D 0] == [PID $C1..PID $E0] Saib hauv qab no | |||
| C3 | 195 | ? | ? | ? | ? | ? | Rov qab ntau cov ntaub ntawv, suav nrog Drive Condition ID thiab Cav Ceev * |
| C4 | 196 | ? | ? | ? | ? | ? | B5 yog Cav Tsis Siv Neeg Thov B6 yog Cav Nres Thov * |
| PID (hex) |
PID (Dec) |
Cov ntaub ntawv bytes rov qab | hauj lwm | Tus nqi qis | Max tus nqi | Chav tsev | Formula[a] |
Hom 02[kho]
Hom 02 lees txais tib PIDs li hom 01, nrog tib lub ntsiab lus, tab sis cov ntaub ntawv muab yog los ntawm thaum lub freeze ncej tsim.
Koj yuav tsum xa tus lej ncej nyob rau hauv cov ntaub ntawv seem ntawm cov lus.
| PID (hex) |
Cov ntaub ntawv bytes rov qab | hauj lwm | Tus nqi qis | Max tus nqi | Chav tsev | Formula[a] |
|---|---|---|---|---|---|---|
| 02 | 2 | DTC uas ua rau khov thav duab khaws cia. | BCD encoded. Decoded li hauv hom 3 |
Hom 03
| PID (hex) |
Cov ntaub ntawv bytes rov qab | hauj lwm | Tus nqi qis | Max tus nqi | Chav tsev | Formula[a] |
|---|---|---|---|---|---|---|
| N/A | n* 6 | Thov cov lej teeb meem | 3 codes rau kab lus. Saib hauv qab no |
Hom 04[kho]
| PID (hex) |
Cov ntaub ntawv bytes rov qab | hauj lwm | Tus nqi qis | Max tus nqi | Chav tsev | Formula[a] |
|---|---|---|---|---|---|---|
| N/A | 0 | Ntiav teeb meem codes / Malfunction qhia teeb (MIL) / Xyuas lub cav teeb | Clears tag nrho cov teeb meem khaws tseg thiab muab MIL tawm. |
Hom 05
| PID (hex) |
Cov ntaub ntawv bytes rov qab | hauj lwm | Tus nqi qis | Max tus nqi | Chav tsev | Formula[a] |
|---|---|---|---|---|---|---|
| 0100 | OBD Monitor IDs txaus siab ($01 - $20) | |||||
| 0101 | O2 Sensor Monitor Bank 1 Sensor 1 | 0.00 | 1.275 | hluav taws xob | 0.005 Kev nplua nuj rau lean sensor pib voltage | |
| 0102 | O2 Sensor Monitor Bank 1 Sensor 2 | 0.00 | 1.275 | hluav taws xob | 0.005 Kev nplua nuj rau lean sensor pib voltage | |
| 0103 | O2 Sensor Monitor Bank 1 Sensor 3 | 0.00 | 1.275 | hluav taws xob | 0.005 Kev nplua nuj rau lean sensor pib voltage | |
| 0104 | O2 Sensor Monitor Bank 1 Sensor 4 | 0.00 | 1.275 | hluav taws xob | 0.005 Kev nplua nuj rau lean sensor pib voltage | |
| 0105 | O2 Sensor Monitor Bank 2 Sensor 1 | 0.00 | 1.275 | hluav taws xob | 0.005 Kev nplua nuj rau lean sensor pib voltage | |
| 0106 | O2 Sensor Monitor Bank 2 Sensor 2 | 0.00 | 1.275 | hluav taws xob | 0.005 Kev nplua nuj rau lean sensor pib voltage | |
| 0107 | O2 Sensor Monitor Bank 2 Sensor 3 | 0.00 | 1.275 | hluav taws xob | 0.005 Kev nplua nuj rau lean sensor pib voltage | |
| 0108 | O2 Sensor Monitor Bank 2 Sensor 4 | 0.00 | 1.275 | hluav taws xob | 0.005 Kev nplua nuj rau lean sensor pib voltage | |
| 0109 | O2 Sensor Monitor Bank 3 Sensor 1 | 0.00 | 1.275 | hluav taws xob | 0.005 Kev nplua nuj rau lean sensor pib voltage | |
| 010A | O2 Sensor Monitor Bank 3 Sensor 2 | 0.00 | 1.275 | hluav taws xob | 0.005 Kev nplua nuj rau lean sensor pib voltage | |
| 010B | O2 Sensor Monitor Bank 3 Sensor 3 | 0.00 | 1.275 | hluav taws xob | 0.005 Kev nplua nuj rau lean sensor pib voltage | |
| 010C | O2 Sensor Monitor Bank 3 Sensor 4 | 0.00 | 1.275 | hluav taws xob | 0.005 Kev nplua nuj rau lean sensor pib voltage | |
| 010D | O2 Sensor Monitor Bank 4 Sensor 1 | 0.00 | 1.275 | hluav taws xob | 0.005 Kev nplua nuj rau lean sensor pib voltage | |
| 010E | O2 Sensor Monitor Bank 4 Sensor 2 | 0.00 | 1.275 | hluav taws xob | 0.005 Kev nplua nuj rau lean sensor pib voltage | |
| 010F | O2 Sensor Monitor Bank 4 Sensor 3 | 0.00 | 1.275 | hluav taws xob | 0.005 Kev nplua nuj rau lean sensor pib voltage | |
| 0110 | O2 Sensor Monitor Bank 4 Sensor 4 | 0.00 | 1.275 | hluav taws xob | 0.005 Kev nplua nuj rau lean sensor pib voltage | |
| 0201 | O2 Sensor Monitor Bank 1 Sensor 1 | 0.00 | 1.275 | hluav taws xob | 0.005 Lean mus nplua nuj sensor pib voltage | |
| 0202 | O2 Sensor Monitor Bank 1 Sensor 2 | 0.00 | 1.275 | hluav taws xob | 0.005 Lean mus nplua nuj sensor pib voltage | |
| 0203 | O2 Sensor Monitor Bank 1 Sensor 3 | 0.00 | 1.275 | hluav taws xob | 0.005 Lean mus nplua nuj sensor pib voltage | |
| 0204 | O2 Sensor Monitor Bank 1 Sensor 4 | 0.00 | 1.275 | hluav taws xob | 0.005 Lean mus nplua nuj sensor pib voltage | |
| 0205 | O2 Sensor Monitor Bank 2 Sensor 1 | 0.00 | 1.275 | hluav taws xob | 0.005 Lean mus nplua nuj sensor pib voltage | |
| 0206 | O2 Sensor Monitor Bank 2 Sensor 2 | 0.00 | 1.275 | hluav taws xob | 0.005 Lean mus nplua nuj sensor pib voltage | |
| 0207 | O2 Sensor Monitor Bank 2 Sensor 3 | 0.00 | 1.275 | hluav taws xob | 0.005 Lean mus nplua nuj sensor pib voltage | |
| 0208 | O2 Sensor Monitor Bank 2 Sensor 4 | 0.00 | 1.275 | hluav taws xob | 0.005 Lean mus nplua nuj sensor pib voltage | |
| 0209 | O2 Sensor Monitor Bank 3 Sensor 1 | 0.00 | 1.275 | hluav taws xob | 0.005 Lean mus nplua nuj sensor pib voltage | |
| 020A | O2 Sensor Monitor Bank 3 Sensor 2 | 0.00 | 1.275 | hluav taws xob | 0.005 Lean mus nplua nuj sensor pib voltage | |
| 020B | O2 Sensor Monitor Bank 3 Sensor 3 | 0.00 | 1.275 | hluav taws xob | 0.005 Lean mus nplua nuj sensor pib voltage | |
| 020C | O2 Sensor Monitor Bank 3 Sensor 4 | 0.00 | 1.275 | hluav taws xob | 0.005 Lean mus nplua nuj sensor pib voltage | |
| 020D | O2 Sensor Monitor Bank 4 Sensor 1 | 0.00 | 1.275 | hluav taws xob | 0.005 Lean mus nplua nuj sensor pib voltage | |
| 020E | O2 Sensor Monitor Bank 4 Sensor 2 | 0.00 | 1.275 | hluav taws xob | 0.005 Lean mus nplua nuj sensor pib voltage | |
| 020F | O2 Sensor Monitor Bank 4 Sensor 3 | 0.00 | 1.275 | hluav taws xob | 0.005 Lean mus nplua nuj sensor pib voltage | |
| 0210 | O2 Sensor Monitor Bank 4 Sensor 4 | 0.00 | 1.275 | hluav taws xob | 0.005 Lean mus nplua nuj sensor pib voltage | |
| PID (hex) |
Cov ntaub ntawv bytes rov qab | hauj lwm | Tus nqi qis | Max tus nqi | Chav tsev | Formula[a] |
Hom 09
| PID (hex) |
Cov ntaub ntawv bytes rov qab | hauj lwm | Tus nqi qis | Max tus nqi | Chav tsev | Formula[a] |
|---|---|---|---|---|---|---|
| 00 | 4 | Hom 9 txhawb PIDs (01 rau 20) | ntsis encoded. [A7..D 0] = [PID $01..PIB $20] Saib hauv qab no | |||
| 01 | 1 | VIN Message suav hauv PID 02. Tsuas yog rau ISO 9141-2, ISO 14230-4 thiab SAE J1850. | Feem ntau tus nqi yuav yog 5. | |||
| 02 | 17 | Tsheb ID (VIN) | 17-CHAR WINE, ASCII-encoded thiab sab laug-padded nrog null chars (0x00 ua) yog xav tau. | |||
| 03 | 1 | Calibration ID xov tooj suav rau PID 04. Tsuas yog rau ISO 9141-2, ISO 14230-4 thiab SAE J1850. | Nws yuav yog ib qho ntawm ntau yam 4 (4 cov lus xav tau rau txhua tus ID). | |||
| 04 | 16,32,48,64.. | Calibration ID | Mus txog 16 ASCII cov ntaub ntawv. Cov ntaub ntawv bytes tsis siv yuav raug tshaj tawm ua null bytes (0x00 ua). Ob peb CALID tuaj yeem tso tawm (16 ib bytes) | |||
| 05 | 1 | Calibration cov ntaub ntawv pov thawj (CVN) lus suav rau PID 06. Tsuas yog rau ISO 9141-2, ISO 14230-4 thiab SAE J1850. | ||||
| 06 | 4,8,12,16 | Calibration Verification Numbers (CVN) Ob peb CVN tuaj yeem tso tawm (4 ib bytes) tus naj npawb ntawm CVN thiab CALID yuav tsum sib phim | Cov ntaub ntawv nyoos sab laug-padded nrog cov cim null (0x00 ua). Feem ntau tshwm sim li hex hlua. | |||
| 07 | 1 | Hauv kev siv kev ua tau zoo taug qab cov lus suav rau PID 08 thiab 0B. Tsuas yog rau ISO 9141-2, ISO 14230-4 thiab SAE J1850. | 8 | 10 | 8 yog kaum (16) cov nqi yuav tsum tau tshaj tawm, 9 yog kaum yim (18) cov nqi yuav tsum tau tshaj tawm, thiab 10 yog nees nkaum (20) cov nqi yuav tsum tau tshaj tawm (ib tsab xov xwm qhia txog ob qhov tseem ceeb, txhua tus muaj nyob rau hauv ob bytes). | |
| 08 | 4 | Nyob rau hauv-siv kev ua tau zoo taug qab rau spark ignition tsheb | 4 los yog 5 lus, txhua tus muaj 4 bytes (ob qhov nqi). Saib hauv qab no | |||
| 09 | 1 | ECU lub npe xov tooj suav rau PID 0A | ||||
| 0A | 20 | ECU npe | ASCII-coded. Txoj cai-padded nrog null chars (0x00 ua). | |||
| 0B | 4 | Nyob rau hauv-siv kev ua tau zoo taug qab rau compression ignition tsheb | 5 lus, txhua tus muaj 4 bytes (ob qhov nqi). Saib hauv qab no | |||
| PID (hex) |
Cov ntaub ntawv bytes rov qab | hauj lwm | Tus nqi qis | Max tus nqi | Chav tsev | Formula[a] |
Bitwise encoded PIDs
Qee qhov PIDs hauv cov lus saum toj no tsis tuaj yeem piav qhia nrog cov qauv yooj yim. Ib qho lus piav qhia ntxaws ntxiv ntawm cov ntaub ntawv no muaj nyob ntawm no:
Hom 1 PID 00
Qhov kev thov rau PID no rov qab los 4 bytes cov ntaub ntawv. Txhua me ntsis, los ntawm MSB rau LSB, sawv cev rau ib qho tom ntej 32 PIDs thiab muab cov ntaub ntawv hais txog yog tias nws tau txais kev txhawb nqa.
Piv txwv li, yog lub tsheb teb yog TIAB SA 813, nws tuaj yeem txiav txim siab zoo li no:
| Hexadecimal | B | E | 1 | F | A | 8 | 1 | 3 | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Binary | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 |
| Pab Txhawb Nqa? | Yog | Tsis muaj | Yog | Yog | Yog | Yog | Yog | Tsis muaj | Tsis muaj | Tsis muaj | Tsis muaj | Yog | Yog | Yog | Yog | Yog | Yog | Tsis muaj | Yog | Tsis muaj | Yog | Tsis muaj | Tsis muaj | Tsis muaj | Tsis muaj | Tsis muaj | Tsis muaj | Yog | Tsis muaj | Tsis muaj | Yog | Yog |
| PID naj npawb | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 0A | 0B | 0C | 0D | 0E | 0F | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 1A | 1B | 1C | 1D | 1E | 1F | 20 |
Yog li, txhawb PIDs yog: 01, 03, 04, 05, 06, 07, 0C, 0D, 0E, 0F, 10, 11, 13, 15, 1C, 1F thiab 20
Hom 1 PID 01
Qhov kev thov rau PID no rov qab los 4 bytes cov ntaub ntawv, sau npe A B C thiab D.
Thawj byte(A) muaj ob daim ntaub ntawv. Me ntsis A7 (MSB ntawm byte A, thawj byte) qhia seb puas yog MIL (check engine teeb) yog illuminated. Cov khoom A6 dhau A0sawv cev rau tus naj npawb ntawm cov kab mob kev kuaj mob tam sim no tau teeb tsa hauv ECU.
Qhov thib ob, thib peb, thiab plaub bytes(B, C thiab D) muab cov ntaub ntawv hais txog qhov muaj thiab ua tiav ntawm qee qhov kev xeem hauv lub nkoj. Nco ntsoov qhov kev xeem ntawd muaj yog qhia los ntawm teeb (1) me ntsis thiab kev ua tiav yog qhia los ntawm kev pib dua (0) me ntsis.
| Me ntsis | Lub npe | Txhais |
|---|---|---|
| A7 | MIL | Tawm los yog On, qhia yog tias CEL/MIL qhib (los yog yuav tsum nyob rau) |
| A6–A0 | DTC_CNT | Tus naj npawb ntawm cov emissions-related DTCs muaj rau tso saib. |
| B7 | TSEV | Khaws tseg (yuav tsum yog 0) |
| B3 | TSIS MUAJ | 0 = Txim hluav taws xob saib xyuas kev txhawb nqa (e.g. Otto lossis Wankel xyaw) 1 = Compression ignition monitors txaus siab (e.g. Diesel cav) |
Ntawm no yog cov ntsiab lus me ntsis B, lawv yog xeem raws.
| Kev sim muaj | Xeem tsis tiav | |
|---|---|---|
| Cheebtsam | B2 | B6 |
| Roj System | B1 | B5 |
| Misfire | B0 | B4 |
Qhov thib peb thiab plaub bytes yuav tsum tau txhais txawv nyob ntawm seb lub cav yog spark hluav taws xob (e.g. Otto lossis Wankel xyaw) los yog compression ignition (e.g. Diesel cav). Hauv qhov thib ob (B) byte, me ntsis 3 qhia yuav ua li cas txhais cov C thiab D bytes, nrog 0 ua spark (Otto los yog Wankel) thiab 1 (teeb) ua compression (Diesel).
Cov bytes C thiab D rau lub teeb taws saib xyuas (e.g. Otto lossis Wankel xyaw):
| Kev sim muaj | Xeem tsis tiav | |
|---|---|---|
| EGR System | C7 | D7 |
| Oxygen Sensor rhaub | C6 | D6 |
| Oxygen Sensor | C5 | D5 |
| A/C tub yees | C4 | D4 |
| Secondary Cua System | C3 | D3 |
| Evaporative System | C2 | D2 |
| Cua sov Catalyst | C1 | D1 |
| Catalyst | C0 | D0 |
Thiab cov bytes C thiab D rau compression ignition saib (Diesel cav):
| Kev sim muaj | Xeem tsis tiav | |
|---|---|---|
| EGR thiab / lossis VVT System | C7 | D7 |
| PM lim saib xyuas | C6 | D6 |
| Exhaust Gas Sensor | C5 | D5 |
| – Khaws tseg – | C4 | D4 |
| Boost Siab | C3 | D3 |
| – Khaws tseg – | C2 | D2 |
| NOx/SCR Monitor | C1 | D1 |
| NMHC Catalyst[a] | C0 | D0 |
- Dhia mus^ NMHC muaj sawv ntsug rau Non-Methane HydroCarbons, tab sis J1979 tsis qhia peb. Kev txhais lus yuav yog ammonia sensor hauv SCR catalyst.
Hom 1 PID 41
Qhov kev thov rau PID no rov qab los 4 bytes cov ntaub ntawv. Thawj byte yog ib txwm xoom. Qhov thib ob, thib peb, thiab plaub bytes muab cov ntaub ntawv hais txog qhov muaj thiab ua tiav ntawm qee qhov kev xeem ntawm lub nkoj. Raws li PID 01, peb thiab plaub bytes yuav tsum tau txhais txawv nyob ntawm seb hom ignition (B3) - nrog 0 ua spark thiab 1 (teeb) ua compression. Nco ntsoov dua qhov kev sim ntawd muaj yog sawv cev los ntawm ib txheej (1) me ntsis thiab kev ua tiav yog sawv cev los ntawm kev pib dua (0) me ntsis.
Ntawm no yog cov ntsiab lus me ntsis B, lawv yog xeem raws.
| Kev sim muaj | Xeem tsis tiav | |
|---|---|---|
| Cheebtsam | B2 | B6 |
| Roj System | B1 | B5 |
| Misfire | B0 | B4 |
Cov bytes C thiab D rau lub teeb taws saib xyuas (e.g. Otto lossis Wankel xyaw):
| Kev sim muaj | Xeem tsis tiav | |
|---|---|---|
| EGR System | C7 | D7 |
| Oxygen Sensor rhaub | C6 | D6 |
| Oxygen Sensor | C5 | D5 |
| A/C tub yees | C4 | D4 |
| Secondary Cua System | C3 | D3 |
| Evaporative System | C2 | D2 |
| Cua sov Catalyst | C1 | D1 |
| Catalyst | C0 | D0 |
Thiab cov bytes C thiab D rau compression ignition saib (Diesel cav):
| Kev sim muaj | Xeem tsis tiav | |
|---|---|---|
| EGR thiab / lossis VVT System | C7 | D7 |
| PM lim saib xyuas | C6 | D6 |
| Exhaust Gas Sensor | C5 | D5 |
| – Khaws tseg – | C4 | D4 |
| Boost Siab | C3 | D3 |
| – Khaws tseg – | C2 | D2 |
| NOx/SCR Monitor | C1 | D1 |
| NMHC Catalyst[a] | C0 | D0 |
- Dhia mus^ NMHC muaj sawv ntsug rau Non-Methane HydroCarbons, tab sis J1979 tsis qhia peb. Kev txhais lus yuav yog ammonia sensor hauv SCR catalyst.
Hom 1 PID 78
Qhov kev thov rau PID no yuav rov qab los 9 bytes cov ntaub ntawv. Thawj byte yog me ntsis encoded teb qhia qhov twg EGT sensors tau txais kev txhawb nqa:
| Byte | hauj lwm |
|---|---|
| A | Txhawb EGT sensors |
| B–C | Kub nyeem los ntawm EGT11 |
| D–E | Kub nyeem los ntawm EGT12 |
| F–G | Kub nyeem los ntawm EGT13 |
| H–Kuv | Kub nyeem los ntawm EGT14 |
Thawj byte yog bit-encoded raws li hauv qab no:
| Me ntsis | hauj lwm |
|---|---|
| A7–A4 | Khaws tseg |
| A3 | EGT bank 1, sensor 4 Pab Txhawb Nqa? |
| A2 | EGT bank 1, sensor 3 Pab Txhawb Nqa? |
| A1 | EGT bank 1, sensor 2 Pab Txhawb Nqa? |
| A0 | EGT bank 1, sensor 1 Pab Txhawb Nqa? |
Qhov seem bytes yog 16 ntsis tus lej qhia qhov ntsuas kub hauv degrees Celsius hauv qhov ntau -40 rau 6513.5 (nplai 0.1), siv li qub {\displaystyle (A x 256+B)/10-40} qauv (MSB yog A, LSB is B). Tsuas yog cov txiaj ntsig uas qhov sib thooj sensor tau txais kev txhawb nqa muaj txiaj ntsig.
Tib qauv siv rau PID 79, tab sis tus nqi yog rau sensors ntawm bank 2.
Hom 3 (tsis xav tau PID)
Ib qho kev thov rau hom no rov qab cov npe ntawm DTCs uas tau teeb tsa. Cov npe yog encapsulated siv lub ISO 15765-2 raws tu qauv.
Yog tias muaj ob lossis tsawg dua DTCs (4 bytes) lawv raug xa rov qab rau hauv ISO-TP Ib Ncej (SF). Peb lossis ntau dua DTCs hauv cov npe tau tshaj tawm hauv ntau lub thav duab, nrog rau qhov tseeb suav ntawm thav duab nyob ntawm hom kev sib txuas lus thiab cov ntsiab lus hais txog.
Txhua qhov teeb meem code yuav tsum tau 2 bytes los piav. Cov lus piav qhia ntawm tus lej teeb meem yuav raug txiav txim raws li hauv qab no. Thawj tus cim hauv qhov teeb meem code yog txiav txim siab los ntawm thawj ob qhov khoom hauv thawj byte:
| A7–A6 | Thawj DTC cim |
|---|---|
| 00 | P – Tsheb ciav hlau |
| 01 | C – Chassis |
| 10 | B – Lub cev |
| 11 | U – Network |
Ob tug lej nram qab no yog encoded li 2 me ntsis. Tus cim thib ob hauv DTC yog tus lej txhais los ntawm cov lus hauv qab no:
| A5–A4 | Thib ob DTC cim |
|---|---|
| 00 | 0 |
| 01 | 1 |
| 10 | 2 |
| 11 | 3 |
Tus cim thib peb hauv DTC yog tus lej txhais los ntawm
| A3–A0 | Thib peb DTC cim |
|---|---|
| 0000 | 0 |
| 0001 | 1 |
| 0010 | 2 |
| 0011 | 3 |
| 0100 | 4 |
| 0101 | 5 |
| 0110 | 6 |
| 0111 | 7 |
| 1000 | 8 |
| 1001 | 9 |
| 1010 | A |
| 1011 | B |
| 1100 | C |
| 1101 | D |
| 1110 | E |
| 1111 | F |
Cov cim thib plaub thiab thib tsib tau txhais ua ib yam li peb, tab sis siv cov khoom siv B7–B4 thiab B3–B0. Qhov tshwm sim tsib tus cim code yuav tsum zoo li ib yam dab tsi “ua 0158” thiab tuaj yeem saib hauv lub rooj ntawm OBD-II DTCs. Hexadecimal cim (0-9, A-F), thaum tseem tsawg, tso cai nyob rau hauv lub xeem 3 txoj haujlwm ntawm tus lej nws tus kheej.
Hom 9 PID 08
Nws muab cov ntaub ntawv hais txog kev ua haujlwm hauv kev siv rau cov tsev txhab nyiaj catalyst, oxygen sensor banks, evaporative leak detection systems, EGR systems thiab cua tshuab thib ob.
Tus lej rau txhua qhov kev tivthaiv lossis qhov system taug qab cov sijhawm uas txhua yam tsim nyog rau kev saib xyuas tshwj xeeb txhawm rau txheeb xyuas qhov ua haujlwm tsis raug.. Tus denominator rau txhua yam khoom lossis qhov system taug qab cov sijhawm uas lub tsheb tau ua haujlwm hauv cov xwm txheej uas tau teev tseg.
Kev suav cov ntaub ntawv yuav tsum tau tshaj tawm thaum pib (thawj byte).
Tag nrho cov ntaub ntawv ntawm Cov Ntaub Ntawv Siv Hauv Kev Siv Cov Ntaub Ntawv Ua Haujlwm muaj ob (2) bytes thiab tau tshaj tawm hauv qhov kev txiav txim no (txhua cov lus muaj ob yam, li no cov lus ntev yog 4).
| Mnemonic | hauj lwm |
|---|---|
| OBDCOND | OBD Saib Xyuas Cov Txheej Txheem Tau ntsib suav |
| IGNCTR | Ignition Counter |
| CATCOMP1 | Catalyst Monitor Completion Counts Bank 1 |
| CATCOND1 | Catalyst Monitor Conditions Encountered Counts Bank 1 |
| CATCOMP2 | Catalyst Monitor Completion Counts Bank 2 |
| CATCOND 2 | Catalyst Monitor Conditions Encountered Counts Bank 2 |
| O2SCOMP1 | O2 Sensor Monitor Ua tiav suav nyiaj 1 |
| O2SCOND1 | O2 Sensor Monitor Cov xwm txheej ntsib suav cov txhab nyiaj 1 |
| O2SCOMP2 | O2 Sensor Monitor Ua tiav suav nyiaj 2 |
| O2SCOND2 | O2 Sensor Monitor Cov xwm txheej ntsib suav cov txhab nyiaj 2 |
| EGRCOMP | EGR Saib Xyuas Kev Ua tiav Cov Cai suav |
| EGRCOND | EGR Saib Xyuas Cov Txheej Txheem Tau ntsib suav |
| AIRCOMP | AIR Monitor Completion Condition Counts (Secondary Cua) |
| AIRCOND | AIR Monitor Conditions ntsib suav (Secondary Cua) |
| EVAPCOMP | EVAP Saib Xyuas Kev Ua tiav Cov Cai suav |
| EVAPCOND | EVAP Saib Xyuas Cov Cai Tau Txais Kev suav |
| SO2SCOMP1 | Secondary O2 Sensor Monitor Ua tiav suav cov txhab nyiaj 1 |
| SO2 SIAB 1 | Secondary O2 Sensor Monitor Conditions Encountered Counts Bank 1 |
| SO2 SCOMP2 | Secondary O2 Sensor Monitor Ua tiav suav cov txhab nyiaj 2 |
| SO2 SIB 2 | Secondary O2 Sensor Monitor Conditions Encountered Counts Bank 2 |
Hom 9 PIB 0B
Nws muab cov ntaub ntawv hais txog kev ua haujlwm hauv kev siv rau NMHC catalyst, NOx catalyst saib, NOx adsorber saib, PM lim saib, Exhaust Gas Sensor saib, EGR / VVT saib, boost siab saib xyuas thiab roj system saib xyuas.
Tag nrho cov ntaub ntawv muaj ob (2) bytes thiab tau tshaj tawm hauv qhov kev txiav txim no (txhua cov lus muaj ob yam, li no lus ntev yog 4):
| Mnemonic | hauj lwm |
|---|---|
| OBDCOND | OBD Saib Xyuas Cov Txheej Txheem Tau ntsib suav |
| IGNCTR | Ignition Counter |
| HCCATCOMP | NMHC Catalyst Monitor Completion Condition Counts |
| HCCATCOND | NMHC Catalyst Monitor Cov xwm txheej ntsib suav |
| NCAAB | NOx/SCR Catalyst Monitor Completion Condition Counts |
| NCAAB | NOx/SCR Catalyst Monitor Conditions Encountered Counts |
| NADSCOMP | NOx Adsorber Saib Xyuas Kev Ua tiav Cov Cai suav |
| NADSCOND | NOx Adsorber Monitor Cov xwm txheej ntsib suav |
| PMCOMP | PM Filter Monitor Ua kom tiav cov xwm txheej suav |
| PMCOND | PM Filter Monitor Cov xwm txheej ntsib suav |
| EGSCOMP | Exhaust Gas Sensor Saib Xyuas Kev Ua tiav Cov Cai suav |
| EGSCOND | Cov Cuab Yeej Hluav Taws Xob Cov Hluav Taws Xob Saib Xyuas Cov Txheej Txheem Pom Zoo suav |
| EGRCOMP | EGR thiab/lossis VVT Saib Xyuas Kev Ua tiav Cov Cai suav |
| EGRCOND | EGR thiab/lossis VVT Saib Xyuas Cov Cai Tau Txais Kev suav |
| BPCOMP | Boost Pressure Monitor Completion Condition Counts |
| BPCOND | Boost Pressure Monitor Cov xwm txheej ntsib suav |
| FUELCOMP | Fuel Monitor Completion Condition Counts |
| FUELCOND | Fuel Monitor Conditions ntsib suav |
Tus lej PIDs[kho]
Qee qhov PIDs yuav tsum tau txhais tshwj xeeb, thiab tsis tas yuav tsum muaj tseeb bitwise encoded, los yog nyob rau hauv tej scale. Cov txiaj ntsig rau PIDs no yog suav sau.
Hom 1 PID 03[kho]
Qhov kev thov rau PID no rov qab los 2 bytes cov ntaub ntawv. Thawj byte piav txog roj system #1.
| Tus nqi | hauj lwm |
|---|---|
| 1 | Qhib lub voj vim lub cav tsis txaus |
| 2 | Kaw lub voj, siv oxygen sensor tawm tswv yim los txiav txim siab roj sib xyaw |
| 4 | Qhib lub voj vim lub cav load lossis roj txiav vim deceleration |
| 8 | Qhib lub voj vim qhov system tsis ua haujlwm |
| 16 | Kaw lub voj, siv tsawg kawg yog ib qho pa oxygen sensor tab sis muaj qhov ua txhaum ntawm kev tawm tswv yim |
Lwm tus nqi yog qhov tsis raug. Muaj peev xwm tsuas muaj ib qho me ntsis teeb ntawm feem ntau.
Qhov thib ob byte piav txog roj system #2 (yog tias muaj) thiab yog encoded zoo tib yam rau thawj byte.
Hom 1 PID 12
Ib qho kev thov rau PID no rov qab ib byte ntawm cov ntaub ntawv uas piav qhia txog huab cua theem nrab.
| Tus nqi | hauj lwm |
|---|---|
| 1 | Nce toj |
| 2 | Downstream ntawm catalytic converter |
| 4 | Los ntawm huab cua sab nraud lossis tawm |
| 8 | Pump tau txib rau kev kuaj mob |
Lwm tus nqi yog qhov tsis raug. Muaj peev xwm tsuas muaj ib qho me ntsis teeb ntawm feem ntau.
Hom 1 PID 1C
Qhov kev thov rau PID no rov qab ib byte ntawm cov ntaub ntawv uas piav qhia txog OBD cov qauv no ECU tau tsim los ua raws. Cov nqi sib txawv cov ntaub ntawv byte tuaj yeem tuav tau qhia hauv qab no, ib sab ntawm qhov lawv txhais li cas:
| Tus nqi | hauj lwm |
|---|---|
| 1 | OBD-II raws li txhais los ntawm lub CARB |
| 2 | OBD raws li txhais los ntawm lub EPA |
| 3 | OBD thiab OBD-II |
| 4 | OBD-I |
| 5 | Tsis ua raws li OBD |
| 6 | EOB (Teb chaws Europe) |
| 7 | EOBD and OBD-II |
| 8 | EOBD and OBD |
| 9 | EOB, OBD and OBD II |
| 10 | JOBD (Nyivpooj) |
| 11 | JOBD and OBD II |
| 12 | JOBD thiab EOBD |
| 13 | JOBD, EOB, thiab OBD II |
| 14 | Khaws tseg |
| 15 | Khaws tseg |
| 16 | Khaws tseg |
| 17 | Engine Manufacturer Diagnostics (EMD) |
| 18 | Cav Chaw Tsim Tshuaj Diagnostics Enhanced (EMD +) |
| 19 | Heavy Duty On-Board Diagnostics (Me nyuam/ib nrab) (HD OBD-C) |
| 20 | Heavy Duty On-Board Diagnostics (HD OBD) |
| 21 | Ntiaj teb thoob ntiaj teb kev sib haum xeeb OBD (WWH OBD) |
| 22 | Khaws tseg |
| 23 | Hnyav plaub ntug Euro OBD theem kuv tsis muaj NOx tswj (HD EOBD-I) |
| 24 | Heavy Duty Euro OBD Theem I nrog NOx tswj (HD EOBD-I N) |
| 25 | Heavy Duty Euro OBD Theem II tsis muaj NOx tswj (HD EEBD-II) |
| 26 | Heavy Duty Euro OBD Theem II nrog NOx tswj (HD EEBD-II N) |
| 27 | Khaws tseg |
| 28 | Brazil OBD Phase 1 (OBBr-1) |
| 29 | Brazil OBD Phase 2 (OBBr-2) |
| 30 | Korean OBD (KOB) |
| 31 | India OBD II (IAB I) |
| 32 | India OBD II (IAB II) |
| 33 | Heavy Duty Euro OBD Theem VI (HD EOBD-IV) |
| 34-250 | Khaws tseg |
| 251-255 | Tsis muaj rau kev ua haujlwm (SAE j1939 ua lub ntsiab lus tshwj xeeb) |
Roj Hom Coding
Hom 1 PID 51 rov qab tus nqi los ntawm ib daim ntawv teev npe uas muab cov roj hom ntawm lub tsheb. Hom roj rov qab ua ib zaug xwb, thiab tus nqi yog muab los ntawm cov lus hauv qab no:
| Tus nqi | hauj lwm |
|---|---|
| 0 | Tsis muaj |
| 1 | Roj av |
| 2 | Methanol |
| 3 | Ethanol |
| 4 | Diesel |
| 5 | LPG |
| 6 | CNG |
| 7 | Propane |
| 8 | Hluav taws xob |
| 9 | Bifuel khiav Gasoline |
| 10 | Bifuel khiav Methanol |
| 11 | Bifuel khiav Ethanol |
| 12 | Bifuel khiav LPG |
| 13 | Bifuel khiav CNG |
| 14 | Bifuel khiav Propane |
| 15 | Bifuel khiav hluav taws xob |
| 16 | Bifuel khiav hluav taws xob thiab combustion engine |
| 17 | Hybrid roj av |
| 18 | Hybrid Ethanol |
| 19 | Hybrid Diesel |
| 20 | Hybrid Electric |
| 21 | Hybrid khiav hluav taws xob thiab combustion engine |
| 22 | Hybrid Regeneration |
| 23 | Bifuel khiav diesel |
Lwm tus nqi yog tshwj tseg los ntawm ISO / SAE. Tam sim no tsis muaj lus txhais rau hloov tau-roj tsheb.
Tsis yog-tus qauv PIDs
Feem ntau ntawm tag nrho OBD-II PIDs siv tsis yog tus qauv. Rau feem ntau cov tsheb niaj hnub, muaj ntau ntau txoj haujlwm txhawb nqa ntawm OBD-II interface dua li tau them los ntawm tus qauv PIDs, thiab muaj qhov sib tshooj me me ntawm cov tuam txhab tsheb rau cov PIDs tsis yog tus qauv.
Muaj cov ntaub ntawv tsawg heev muaj nyob rau hauv pej xeem sau rau PIDs tsis yog tus qauv. Lub hauv paus ntsiab lus ntawm cov ntaub ntawv ntawm cov tsis-tus qauv PIDs nyob rau hauv txawv manufacturers yog tswj los ntawm US-raws li Khoom siv thiab cuab yeej lub koom haum thiab tsuas muaj rau cov tswv cuab xwb. Tus nqi ntawm ETI kev ua tswv cuab rau kev nkag mus rau scan code sib txawv raws li lub tuam txhab loj uas tau teev tseg los ntawm kev muag khoom txhua xyoo ntawm cov cuab yeej siv tsheb thiab khoom siv hauv North America:
| Kev muag khoom txhua xyoo hauv North America | Txhua Xyoo |
|---|---|
| Hauv qab $10,000,000 | $5,000 |
| $10,000,000 – $50,000,000 | $7,500 |
| Loj dua $50,000,000 | $10,000 |
Txawm li cas los, Txawm tias ETI cov tswv cuab yuav tsis muab tag nrho cov ntaub ntawv rau PIDs tsis yog tus qauv. ETI xeev:[4][5]
Qee cov OEMs tsis kam siv ETI ua ib qho chaw nres tsheb ntawm cov ntaub ntawv scan. Lawv nyiam ua lag luam nrog txhua lub tuam txhab cuab yeej sib cais. Cov tuam txhab no kuj xav kom koj nkag mus rau hauv daim ntawv cog lus nrog lawv. Cov nqi sib txawv tab sis ntawm no yog cov duab thaij duab thaum lub Plaub Hlis 13th, 2015 ntawm cov nqi them txhua xyoo:
GM $50,000 Hasdas $5,000 Suzuki $1,000 BMW $25,500 ntxiv rau $2,000 rau qhov hloov tshiab. Kev hloov tshiab tshwm sim txhua xyoo.
MUAJ (11-me ntsis) tsheb npav format
PID cov lus nug thiab cov lus teb tshwm sim ntawm lub tsheb CAN tsheb npav. Tus qauv OBD thov thiab cov lus teb siv qhov chaw nyob ua haujlwm. Tus nyeem ntawv kuaj mob pib cov lus nug uas siv CAN ID 7DFh[xav tau kev qhia meej], uas ua raws li qhov chaw nyob tshaj tawm, thiab lees txais cov lus teb los ntawm ib tus ID hauv thaj tsam 7E8h txog 7EFh. ECUs uas tuaj yeem teb rau OBD cov lus nug mloog ob qho tib si rau kev ua haujlwm tshaj tawm ID ntawm 7DFh thiab ib tus ID muab rau hauv thaj tsam 7E0h txog 7E7h. Lawv cov lus teb muaj tus lej ID ntawm lawv qhov kev muab ID ntxiv 8 e.g. 78h mus 7ef.
Txoj hauv kev no tso cai rau yim ECUs, txhua tus ntawm nws tus kheej teb rau OBD cov lus nug. Tus nyeem ntawv kuaj mob tuaj yeem siv tus ID hauv ECU cov lus teb kom txuas ntxiv kev sib txuas lus nrog ib qho ECU. tshwj xeeb, Kev sib txuas lus ntau qhov yuav tsum tau teb rau qhov tshwj xeeb ECU ID es tsis yog rau ID 7DFh.
CAN tsheb npav kuj tseem siv tau rau kev sib txuas lus tshaj li cov lus OBD tus qauv. Qhov chaw nyob ntawm lub cev siv tshwj xeeb CAN IDs rau cov qauv tshwj xeeb (e.g., 720h rau pawg ntsuas hauv Fords) nrog proprietary ncej payloads.
Lus nug
Cov lus nug ua haujlwm PID raug xa mus rau lub tsheb ntawm lub npav CAN ntawm ID 7DFh, siv 8 cov ntaub ntawv bytes. Cov bytes yog:
| Byte | ||||||||
|---|---|---|---|---|---|---|---|---|
| PID hom | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| SAE Txuj | Tus naj npawb ntawm ntxiv cov ntaub ntawv bytes: 2 |
Hom 01 = qhia cov ntaub ntawv tam sim no; 02 = khov frame; thiab lwm yam. |
PID code (e.g.: 05 = Cav coolant kub) |
tsis siv (yog 55h) |
||||
| Lub tsheb tshwj xeeb | Tus naj npawb ntawm ntxiv cov ntaub ntawv bytes: 3 |
Hom kev cai: (e.g.: 22 = txhim kho cov ntaub ntawv) | PID code (e.g.: 4980h) |
tsis siv (tej zaum 00h lossis 55h) |
||||
Teb
Lub tsheb teb rau cov lus nug PID ntawm lub npav CAN nrog cov lus ID uas nyob ntawm seb qhov twg tau teb. Feem ntau lub cav lossis lub ntsiab ECU teb ntawm ID 7E8h. Lwm yam modules, zoo li hybrid maub los lossis roj teeb tswj hauv Prius, lus 07e9h, 07Eah, 07EBh, thiab lwm yam. Cov no yog 8h siab dua qhov chaw nyob ntawm lub cev uas module teb rau. Txawm hais tias tus naj npawb ntawm bytes hauv tus nqi rov qab yog qhov sib txawv, cov lus siv 8 cov ntaub ntawv bytes tsis hais (CAN tsheb npav raws tu qauv Frameformat nrog 8 cov ntaub ntawv bytes). Cov bytes yog:
| Byte | ||||||||
|---|---|---|---|---|---|---|---|---|
| PID hom | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| SAE Txuj 7E8h, 7e9h ib, 7Eah, thiab lwm yam. |
Tus naj npawb ntawm ntxiv cov ntaub ntawv bytes: 3 rau 6 |
Hom kev cai Ib yam li kev nug, tshwj tsis yog tias 40h ntxiv rau tus nqi hom. Yog li: 41h = qhia cov ntaub ntawv tam sim no; 42h = freeze frame; thiab lwm yam. |
PID code (e.g.: 05 = Cav coolant kub) |
tus nqi ntawm qhov kev txwv tsis pub dhau, byte 0 | tus nqi, byte 1 (yeem) | tus nqi, byte 2 (yeem) | tus nqi, byte 3 (yeem) | tsis siv (tej zaum 00h lossis 55h) |
| Lub tsheb tshwj xeeb 7E8h, lub 8h + Lub cev ID ntawm module. |
Tus naj npawb ntawm ntxiv cov ntaub ntawv bytes: 4rau 7 |
Hom kev cai: tib yam li nug, tshwj tsis yog tias 40h ntxiv rau tus nqi hom.(e.g.: 62h = teb rau hom 22h thov) | PID code (e.g.: 4980h) |
tus nqi ntawm qhov kev txwv tsis pub dhau, byte 0 | tus nqi, byte 1 (yeem) | tus nqi, byte 2 (yeem) | tus nqi, byte 3 (yeem) | |
| Lub tsheb tshwj xeeb 7E8h, lub 8h + Lub cev ID ntawm module. |
Tus naj npawb ntawm ntxiv cov ntaub ntawv bytes: 3 |
7Fh qhov no cov lus teb dav dav feem ntau qhia tias lub module tsis paub txog qhov kev thov. | Hom kev cai: (e.g.: 22h = txhim kho cov ntaub ntawv kuaj mob los ntawm PID, 21h = txhim kho cov ntaub ntawv los ntawm offset) | 31h | tsis siv (yog 00h) |
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Benz 14 pin – 16pin
Nissian 14 pin – 16pin
GM12 PIN-16 PIN
DB9-16 PIN
ib 38pin -16 pin
Fiat 3 pin – 16 pin
Toyota 22 pin – 16 pin
KIA 20 pin – 16 pin
Audi 2×2 – 16 pin
Benz 38 pin
Mitsubishi 12 pin – 16pin
Honda 3 pin – 16pin
BMW 20 PIN – 3 pin
Subaru 9 pin – 16 pin
Chrysler 6 pin
