What is the Difference Between Coding and Programming: Coding
WARNING: This page does not describe the selected car, but rather 136 other vehicles, including the 2008 BMW 760Li, 2008 BMW 650i, 2007 BMW Z4, 2007 BMW X5, and 2007 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.
Coding selects a set of instructions that are already present in a control module. When a codable module is ordered from the parts department it contains all of the programs necessary for any applicable vehicle version.
The programs are stored in an EPROM as "Resident Data". During the coding process one set of instructions (e.g. USA version, equipped with board monitor, high cluster, etc.) is activated in the control module. Coding is used for most control modules in the vehicle except for powertrain control modules.
The various types of coding methods are:
- ZCS Coding.
- Coding Code (no longer supported).
- Variant Coding (DME).
- Vehicle and Key Memory Coding.