2013年3月2日星期六

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OBD II isn't any for a longer period only utilised by specialists and hobbyists to repair motor vehicles. OBD II information and facts is usually made use of by automobile telematics gadgets that complete fleet tracking, keep track of gas efficiency, reduce unsafe driving, as well as for distant diagnostics and by Pay-As-You-Drive insurance plan.  supported OBD II info these kinds of as Auto Pace, RPM, and Gas Stage allow for GPS based fleet tracking units to watch car idling instances, speeding, and over-revving. By checking OBD II DTCs a corporation can know immediately if one among its autos has an motor difficulty and by decoding the code the nature with the trouble. OBD II can also be monitored to dam mobile telephones when driving and to report excursion data for insurance plan uses.

A PC-based OBD investigation software that converts the OBD-II alerts to serial data (USB or serial port) normal to PCs or Macs.  Lots of preferred interfaces are determined by the ELM or STN1110[17] OBD Interpreter ICs, both of which examine all 5 generic OBD-II protocols. Some adapters now use the J2534 API making it possible for them to access OBD-II Protocols for each autos and vans.

Within the Usa, several states now use OBD-II screening as a substitute of tailpipe testing in OBD-II compliant autos (1996 and newer). Because OBD-II shops difficulties codes for emissions devices, the testing laptop or computer can query the vehicle's onboard personal computer and verify there isn't any emission associated difficulties codes and that the automobile is in compliance with emission standards to the design 12 months it had been created.

in the first place developed on your right above needs widely.software system then decodes the been given details to some visible display.OBD-II gives obtain to knowledge from the engine manage unit (European) and provides a worthwhile source of data when troubleshooting challenges inside a vehicle. The SAE typical defines a technique for requesting several diagnostic facts plus a list of normal parameters that may be available from your Ecu. The varied parameters which are available are tackled by "parameter identification numbers" or PIDs that are outlined in J1979. For a list of standard PIDs, their definitions, along with the method to transform raw OBD-II output to meaningful diagnostic models, see OBD-II PIDs. Suppliers usually are not required to put into practice all PIDs stated in and they're allowed to contain proprietary PIDs that aren't listed. The PID ask for and facts retrieval program gives entry to authentic time efficiency info together with flagged DTCs. For a listing of generic OBD-II DTCs recommended because of the SAE, see Desk of OBD-II Codes. Specific makers typically greatly enhance the OBD-II code established with added proprietary DTCs.

Additionally, it supplies a applicant list of vehicle parameters to watch in conjunction with tips on how to encode the information for each. There's a pin during the connector that gives ability for the scan software in the car battery, which gets rid of the need to attach a scan resource to a electricity supply separately. However, some technicians could nevertheless join the scan resource to an auxiliary power resource to shield facts during the abnormal celebration that a motor vehicle activities a loss of electrical ability due to a malfunction.

There happen to be studies of robbers utilizing specialist OBD reprogramming products to help them to steal autos without the need of the use of a critical.The principal reasons for this vulnerability lie within the inclination for automobile producers to increase the bus for uses in addition to these for which it was intended, as well as deficiency of authentication and authorization during the OBD requirements GM Tech 2, which as an alternative count mainly on security via obscurity.

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