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                      ?#19994;?#36710;有OBD-II吗?

                      中文

                      All cars and light trucks built and sold in the United States after January 1, 1996 were required to be OBD II equipped. In general, this means all 1996 model year cars and light trucks are compliant, even if built in late 1995.

                      Two factors will show if your vehicle is definitely OBD II equipped:
                      1) There will be an OBD II connector as shown below, and
                      2) There will be a note on a sticker or nameplate under the hood: "OBD II compliant".

                      The Connector

                      connectorblue.GIF (4145 bytes)

                      Pin 2 - J1850 Bus+
                      Pin 4 - Chassis Ground
                      Pin 5 - Signal Ground
                      Pin 6 - CAN High (J-2284)
                      Pin 7 - ISO 9141-2 K Line
                      Pin 10 - J1850 Bus
                      Pin 14 - CAN Low (J-2284)
                      Pin 15 - ISO 9141-2 L Line
                      Pin 16 - Battery Power

                      Where is the connector located?

                      The connector must be located within three feet of the driver and must not require any tools to be revealed. Look under the dash and behind ashtrays.

                      The Five Flavors of OBD II

                      While the parameters, or readings, required by OBD II regulations are uniform, the auto manufacturers had some latitude in the communications protocol they used to transmit those readings to scanners. Naturally, each felt they had the one true way, so we have five different OBD II communications protocols in use.

                      The big scanner consoles costing thousands of dollars include the decoding software and firmware for all five protocols in their units, making them universal. Less expensive units, for home or small shop use, are usually customized for a specific communications protocol. Be sure the scanner you are using suits the protocol of your car.

                      What Communications Protocol does my vehicle use?

                      As a rule of thumb, GM cars and light trucks use SAE J1850 VPW (Variable Pulse Width Modulation). Chrysler products and all European and most Asian imports use ISO 9141 or KWP2000 circuitry. Fords use SAE J1850 PWM (Pulse Width Modulation) communication patterns. All 2008 and newer model year vehicles use CAN.

                      There are some variations among captive imports such as the Cadillac Catera, a German Opel derivative, which uses the European ISO 9141 protocol. If you have first hand knowledge of other such variations, please send them in and, together, we can build a more complete listing.

                      On 1996 and later vehicles, you can tell which protocol is used by examining the OBD II connector:

                      • J1850 VPW --The connector should have metallic contacts in pins 2, 4, 5, and 16, but not 10.
                      • ISO 9141-2/KWP2000 --The connector should have metallic contacts in pins 4, 5, 7, 15, and 16.
                      • J1850 PWM --The connector should have metallic contacts in pins 2, 4, 5, 10, and 16.
                      • CAN --The connector should have metallic contacts in pins 4, 5, 6, 14 and 16.

                      If your vehicle has this style connector, but doesn't have these pins populated, you probably have a pre-OBDII vehicle. To add some confusion, even having the connector with the contacts shown above is not a guarantee of OBD II compliance. This style connector has been seen on some pre-1996 vehicles which were not OBD II compliant.

                      Information on Pre-96 Cars

                      A reader with the California Air Resouces Board provided this list of pre-96 OBD II engine designations. Note that CARB recognizes engine series, rather than vehicle models, so the engine designations are the true key, with the vehicle models provided as a courtesy.

                      California Air Resources Board List of
                      Certified OBD II Complying Engine Families and Models

                      Engine Family Manufacturer Model(s) Fully Compliant?
                      1994 Model Year Certifications
                      RAD2.8V8GFEM
                      RFM3.8V8G1EK
                      RFM4.6V8G1EK
                      RMB2.2VJGCEK
                      RMB3.2VJGCEK
                      RNS2.0VJGDEK
                      RTY3.0VJGFEK
                      RTY2.7HGEEK
                      RTY2.42HGEEK
                      RVW2.8V8GFHM
                      RVV2.3VHGFEK
                      Audi
                      Ford
                      Ford
                      Mercedes-Benz
                      Mercedes-Benz
                      Nissan
                      Toyota
                      Toyota
                      Toyota
                      Volkswagen
                      Volvo
                      100
                      Mustang
                      T-Bird, Cougar
                      C220
                      C 280, S 320, SL 320
                      G20
                      Camry, ES300
                      T100
                      Previa, Previa All-Trac
                      Corrado
                      850 Turbo
                      No
                      No
                      No
                      No
                      No
                      Yes
                      No
                      No
                      No
                      No
                      No
                      1995 Model Year Certifications
                      SBM5.4V8GAEK
                      SCR2.0VJGFEK
                      SCR122VJG2EK
                      SCR2.0VJG2GK
                      SCR2.0VJGFEL
                      SDS2.0VJGFEK


                      SFM3.828G1EK
                      SFM3.8V8G1EK
                      SFM4.6V8G1EK
                      SFM4.6V8G1GK

                      SFM2.318G1EK
                      SFM3.028G1EK
                      SFM3.018G1EK
                      SFM3.028G1FK
                      SFM4.018G1EK
                      SFM4.6VJG1EK
                      SFM4.028G1EK
                      S1G3.8V8G1EK
                      S3G4.319GFEJ
                      S3G4.329GFGJ
                      SIG2.3VJG2GK
                      SHN2.7VJG1EK
                      SHN2.7VJGFEK
                      SHN2.5VJGKEK
                      SHN3.0VJGKEK
                      SJC4.0VJGAEK
                      SJC6.0V8GFFK
                      SJC4.0VJGFEK
                      SKM1.8VJG1EK
                      STK2.3VJGFEK
                      STK2.5VJGFEK
                      STK1.5VJG2EK
                      STK1.8VJG1EK
                      SFM2.318G1EK
                      SFM3.018G1EK
                      SFM3.028G1FK
                      SFM4.018G1EK
                      SFM4.028G1EK
                      SMB3.6VJGFEK
                      SMT1.5VJG2EK
                      SMT1.8VJG2EK

                      SMT2.4VJG2EK
                      SNS2.4VJGFFK
                      SNS2.0VJGFFK
                      SNS3.0VJG1EK
                      SNS3.0VJG1FK
                      SNS2.4VJG2EK
                      SNS1.6VJG2EK
                      SNS2.0VJGFEK
                      SNS3.0VJG1EK
                      SLR4.0H8GOEK
                      SFJ2.2VJGFEK
                      STY3.41JG1GK
                      STY3.42JG1GK
                      STY3.0VJGFEK

                      STY2.42HGJEK
                      STY2.71HGEEK
                      STY1.5VHGFEK
                      STY4.0VJG1GK
                      STY2.41HG1GK
                      STY2.71HG1GK
                      STY3.41JGFEK
                      STY3.42JGFEK
                      STY4.55JGFEK
                      SVV2.3VJGFEK
                      SVV2.4VJGFEK
                      BMW
                      Chrysler
                      Chrysler
                      Chrysler
                      Chrysler
                      Diamond Star


                      Ford
                      Ford
                      Ford
                      Ford

                      Ford
                      Ford
                      Ford
                      Ford
                      Ford
                      Ford
                      Ford
                      GM
                      GM
                      GM
                      GMC
                      Honda
                      Honda
                      Honda
                      Honda
                      Jaguar
                      Jaguar
                      Jaguar
                      KIA
                      Mazda
                      Mazda
                      Mazda
                      Mazda
                      Mazda*
                      Mazda*
                      Mazda*
                      Mazda*
                      Mazda*
                      Mercedes Benz
                      Mitsubishi
                      Mitsubishi

                      Mitsubishi
                      Nissan
                      Nissan
                      Nissan
                      Nissan
                      Nissan
                      Nissan
                      Nissan
                      Nissan
                      Rover
                      Subaru
                      Toyota
                      Toyota
                      Toyota

                      Toyota
                      Toyota
                      Toyota
                      Toyota
                      Toyota
                      Toyota
                      Toyota
                      Toyota
                      Toyota
                      Volvo (TC)
                      Volvo
                      750cl(V12), 850ci(V12)
                      Dodge Neon, Plymouth Neon
                      Dodge Neon, Plymouth Neon
                      Dodge Neon, Plymouth Neon
                      Dodge Neon, Plymouth Neon
                      Eagle Talon, Mitsubishi
                      Eclipse, Chrysler Sebring,
                      Dodge Avenger
                      Windstar
                      Mustang
                      T-Bird, Cougar
                      Grand Marquis, Town Car,
                      Crown Victoria
                      Ranger
                      Windstar
                      Ranger
                      Ranger
                      Ranger
                      Continental
                      Ranger
                      Camaro, Firebird
                      S10 Pick-Up, Jimmy, Blazer
                      S10 Pick-Up
                      Cavalier, Sunfire
                      Accord LX, EX (V6)
                      Accord LX, EX (V6)
                      TL
                      NSX
                      AJ16 (SC)
                      V12
                      XJS
                      Sephia
                      Millenia
                      Millenia
                      Protege
                      Protege
                      B2300
                      B3000
                      B3000
                      B4000
                      B4000
                      S 320, C 280, SL 320
                      Summit, Mirage
                      Summit, & Summit Wagon,
                      Mirage, Expo, LRV
                      Summit Wagon, Expo, LRV
                      240 SX
                      G20
                      Maxima
                      Maxima
                      Altima
                      Sentra/200 SX
                      200SX SE-R
                      Maxima
                      Range Rover New Model
                      Legacy
                      T100 2WD
                      T100 2WD & 4WD
                      Camry, Camry Wagon,
                      ES300, Avalon
                      Previa, Previa All-trac
                      T100 2WD
                      Tercel
                      LS 400
                      Tacoma 2WD
                      Tacoma 4WD
                      Tacoma 2WD/4WD
                      Tacoma 4WD
                      Land Cruiser
                      850 Turbo Sedan/Wagon
                      850 Sedan/Wagon
                      No
                      No
                      No

                      No
                      No


                      No
                      No
                      No
                      No

                      No
                      No
                      No
                      No
                      No
                      No
                      No
                      Yes
                      No
                      No

                      Yes
                      Yes
                      Yes
                      Yes
                      Yes
                      No
                      No
                      No
                      No
                      No
                      No
                      No
                      No
                      No
                      No
                      No
                      No
                      Yes
                      No
                      No

                      No
                      Yes
                      Yes
                      No
                      No
                      Yes
                      Yes
                      Yes
                      No
                      No
                      Yes (A/T models only)
                      Yes
                      Yes
                      Yes

                      No
                      Yes
                      No
                      No
                      No
                      No
                      No
                      No
                      No
                      No
                      Yes

                      A note accompanying this list indicated that certification is for the engine group only. The models listed are believed correct, but the engine is the deciding factor.