Differences

This shows you the differences between two versions of the page.

--- en:obd [2026/06/14 21:59] – obd-diagnose
+++ en:obd [2026/07/23 15:28] (current) – obd-diagnose
@@ Line 1: / Line 1: @@
 {{:obd-symbol.jpg?nolink | OBD symbol}} On-Board-Diagnosis (**OBD**), is used to monitor and [[diagnose]] control units in vehicles.
-The functions are monitored for errors, and in the event of an error, these are stored in an [[fault log]], [[measurement values]] and setting options are made available.
+The functions are monitored for errors, and in the event of an error, these are stored in an fault (error) log, [[measurement-values]] and setting options are made available.
-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 ([[OBD-Scanner]]).
+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 ([[OBD-Scanner]]).
-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]] with its own display, which is independent of basic devices such as mobile phones, PCs or laptops, is practical for [[diagnosis]] in the workshop.
+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]] with its own display, which is independent of basic devices such as mobile phones, PCs or laptops, is practical for vehicle diagnosis in the workshop.
-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]] ).
 From 2021, models from Audi, Seat, Skoda and Volkswagen will use the mechanism [[SFD]] to regulate access to control units.
@@ Line 17: / Line 17: @@
   * from 1.1.2017 for motorbikes
-Corresponding vehicles have a [[obd-2 plug]] (OBD-2 socket) 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]] (OBD-2 socket) 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.
 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://shop.dieselschrauber.org/en/|OBD-Scanner and VCDS]]
+Various providers offer obd-help, which goes beyond the content of this wiki. [[https://shop.dieselschrauber.org/en/|Professional OBD-Scanner and VCDS]]