en:obd
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| This enables the workshop to read out any errors that have occurred ([[fault codes]]) from the respective error memories and to check the correct function via [[measurement values]]. | This enables the workshop to read out any errors that have occurred ([[fault codes]]) from the respective error memories and to check the correct function via [[measurement values]]. | ||
| - | An OBD system consists of at least one control unit that uses measured values from various sensors (e.g. oxygen sensors) to control actuators (e.g. injection nozzles) to achieve the desired behaviour. A modern vehicle can contain countless ECUs, each supporting hundreds of parameters that can be accessed via the DLC (Diagnostic Link Connector, [[obd-2-plug]] ) using an OBD diagnostic device. | + | An OBD system consists of at least one control unit that uses measured values from various sensors (e.g. oxygen sensors) to control actuators (e.g. injection nozzles) to achieve the desired behaviour. A modern vehicle can contain countless ECUs, each supporting hundreds of parameters that can be accessed via the DLC (Diagnostic Link Connector, [[obd-2 plug]]) using an OBD diagnostic device |
| - | Apps are available for mobile devices that display real-time data from the respective ECUs (virtual instrument panel). One example is the OBD app Drivedeck. For Microsoft Windows, for example, there is the OBD-2 software KOBD2Check and [[VCDS]] for manufacturer-specific OBD on Audi, Seat, Skoda and VW. An OBD diagnostic device | + | Apps are available for mobile devices that display real-time data from the respective ECUs (virtual instrument panel). One example is the OBD app Drivedeck. For Microsoft Windows, for example, there is the OBD-2 software KOBD2Check and [[VCDS]] for manufacturer-specific OBD on Audi, Seat, Skoda and VW. An [[OBD-Scanner]] |
| The readout of errors or measured values in the respective [[control unit]] via OBD is usually done by [[CAN]] bus or [[K-Line]] , in older vehicles more rarely also by PWM (pulse width modulation) or VPW (variable pulse width). Next-generation vehicles use Ethernet ([[DoIP]] ). | The readout of errors or measured values in the respective [[control unit]] via OBD is usually done by [[CAN]] bus or [[K-Line]] , in older vehicles more rarely also by PWM (pulse width modulation) or VPW (variable pulse width). Next-generation vehicles use Ethernet ([[DoIP]] ). | ||
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| * from 1.1.2017 for motorbikes | * from 1.1.2017 for motorbikes | ||
| - | Corresponding vehicles have a [[obd-2-plug]] for connecting a diagnostic system. However, the socket itself is not an indication of the OBD-2 capability of the vehicle, because it was often also used on vehicles that only support manufacturer-specific diagnostics. | + | Corresponding vehicles have a [[obd-2 plug]] |
| Efforts are being made to harmonise emission-related diagnostics worldwide; the corresponding standard [[WWH-OBD]] has been in development since 2014. | Efforts are being made to harmonise emission-related diagnostics worldwide; the corresponding standard [[WWH-OBD]] has been in development since 2014. | ||
| Various providers offer [[obd-help]] , which goes beyond the content of this wiki. [[https:// | Various providers offer [[obd-help]] , which goes beyond the content of this wiki. [[https:// | ||
en/obd.1690129460.txt.gz · Last modified: 2023/07/23 18:24 by obd_diagnose
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