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Software Update Ver 27/10/08 for the AD-1 PC scanner HERE Software version 29/01/08HERE AD-1 USB Driver HERE U581 English Software update version 4.6 HERE VAG5053 latest update Version 1.4 HERE Free DTC Library/ Code expander programme HERE
The different EOBD/OBD2 Communication protocols
Most European and Japanese Vehicles use the By Checking the pins in your car diagnostic plug you can determine your car protocol The following table explains how to determine the protocol:
*Pin 15 (also called the "L-line") is optional in newer vehicles that use the ISO9141-2 or ISO14230-4 protocols. In addition to pins 2, 7, 10, and 15, the connector should have pins 4 (Chassis Ground), 5 (Signal Ground), and 16 (Battery Positive). This means that:
MSN messenger.ID autotec-direct@hotmail.co.uk Technical support: Telephone 02897543071 When using your fault code reader make sure the car is at normal working temperature,in (park if auto)neutral and air con and all electricial equipment(demister radio etc)is switched off and that the cooling fan is not operating. With regard to the OBD2 fault scanners,they do not reset the oil service light If you need the data to reset your oil service interval contact us @ support@autotec-direct.com and if we have the data it will be sent to your inbox free of charge just send your car details(make model etc) If you need help finding your cars DLC (diagnostic plug) Contact us for details EOBD Compliant cars: All European Market Petrol cars Manufactured from 1 Jan 2001 are EOBD compliant, Most Ford Chrysler/Jeep, Jaguar and Petrol Volvo Models have been EOBD enabled since the Mid 90`s Diesels are compliant from 2004, Even if you don’t repair the vehicle yourself, knowing the Diagnostic Trouble Code number before taking the vehicle in for repair makes you an informed consumer. If the Diagnostic Trouble Code indicates a faulty vehicle speed sensor, for example, and the mechanic talks about a major engine overhaul, you may want a second opinion before leaving the vehicle for repair. Once the vehicle is repaired, the Diagnostic Trouble Code(s) can be erased and the Check Engine light extinguished using the scan tool. In states that require a smog check, an illuminated Check Engine light fails the emission test, even if the repaired vehicle might otherwise pass inspection. Another highly useful application for the scan tool is purchasing used vehicles. Used vehicles can have all sorts of expensive mechanical or electrical problems which can be found by plugging a scan tool in before any money has changed hands Signal protocols There are five signalling protocols currently in use with the OBD-II interface. Any given vehicle will likely only implement one of the protocols. Often it is possible to make an educated guess about the protocol in use based on which pins are present on the J1962 connector: SAE J1850 PWM (41.6 kbaud, standard of the Ford Motor Company) pin 2: Bus- pin 10: Bus+ High voltage is +5 V SAE J1850 VPW (Variable Pulse Width) (10.4/41.6 kbaud, standard of General Motors) pin 2: Bus+ Bus idles low High voltage is +7 V Decision point is +3.5 V Message length is restricted to 11 bytes, including CRC Employs CSMA/NDA ISO 9141-2. This protocol has a data rate of 10.4 kbaud, and is similar to RS-232. ISO 9141-2 is primarily used in Chrysler, European, and Asian vehicles. pin 7: K-line pin 15: L-line (optional) UART signaling (though not RS-232 voltage levels) K-line idles high High voltage is Vbatt Message length is restricted to 11 bytes, including CRC ISO 14230 KWP2000 (Keyword Protocol 2000) pin 7: K-line pin 15: L-line (optional) Physical layer identical to ISO 9141-2 Data rate 1.2 to 10.4 kbaud Message may contain up to 255 bytes in the data field ISO 15765 CAN (250 kbit/s or 500 kbit/s). The CAN protocol is the standard protocol for the OBD-II market from 2008, all vehicles sold will be required to implement the CAN bus, thus eliminating the ambiguity of the existing five signalling protocols. pin 6: CAN High pin 14: CAN Low Note that pins 4 (battery ground) and 16 (battery positive) are present in all configurations. Also, ISO 9141 and ISO 14230 use the same pinout, thus the connector shape does not distinguish between the two. |
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