Automotive dictionary

Explains vocabulary and abbreviations used in Automotive

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Idents are specific ODX elements that check the compatibility and integrity of ECU soft­ ware components. They are used during the execution of flash Java jobs and are stored in ODX files of the category Flash.


InfoTypes are explained explicitly in ISO 15031-5. They are identifiers for the information that a vehicle can provide.

Initial positive response

The initial response is the first response to the service $22 (readDataByPeriodicIdentifier).

Intel byte order

The Intel byte order is also called low/high byte order or Little Endian (see byte order).


Generic term for either software interfaces or hardware interfaces. A typical example for a software interface is the application programmer interface (API). Examples for hardware interfaces include the vehicle communication interface (VCI). Other terms for hardware interfaces are interface hardware, diagnostic interface, VCI hardware, and EDIC.


The interface-Connector is the connector of the VCI hardware.


Interleaving is a non-contiguous arrangement of data objects or strings on transmission me­dia.

Intermediate result

This is an intermediate result of a Java job and is transmitted to the diagnostic application. It contains a result structure with the output parameters of the job.

In-vehicle network

This is a generic term for an automotive data communication system that is used to connect electronic control units. The in-vehicle network can be either a simple linear bus or a com­plex network if gateways are employed. Examples include K-line, SAE 11850, high-speed CAN, low-speed CAN, single-wire CAN, LIN, FlexRay, MOST, and IDB 1394.

Invers value

The invers value is used to calculate the coded value, if a clear-cut relationship between physical and coded value does not exit.

Source Christoph Marscholik and Peter Subke (2008) - Road vehicles, Diagnostic communication -