In the industry of automotive diagnostic scan tools the terms "Programming," "Coding" and "Calibration" have distinct meanings and differences. Understanding these differences is important for technicians and shop owners in the automotive repair and diagnostic field.
Programming:
This is the process of uploading a fresh or newer file version into an ECU thus overwriting the existing file. The Engine Control Unit (ECU), Transmission Control Unit (TCU) and other electronic modules most often have a programming requirement to address identified issues.
Programming is also required quite often when replacing an ECU in a vehicle so that it communicates correctly with the vehicle's systems. In some cases, a tech can substitute a used ECU but in other situations only a new ECU will allow completion of the repair.
Coding:
In this context, coding typically refers to selecting the software instructions written for the particular vehicle the ECU is being installed in. This can include the operating system of the ECU, the software that controls the infotainment system, or the algorithms that manage advanced driver-assistance systems (ADAS).
Coding, unlike programming does not typically load any new software onto the ECU but instead it 'selects' the options required for that vehicle. Another way of putting it, coding 'flips the electronic switches' within the ECU so it understands the vehicle it is installed in and acts accordingly.
Calibration:
In the automotive context this involves adjusting the parameters within a vehicle's control systems to maintain performance. This can include settings like the correct fuel injection timing, steering angle alignment or camera alignments (like those used in ADAS systems).
Calibration is essential for ensuring that the vehicle operates as intended, especially after parts replacement or repair. It ensures that sensors and systems are accurately reporting and responding to the vehicle's condition.
To many shops programming and coding is a seemingly everyday occurrence. To other shops the situation doesn't occur too often. In many cases the shop may not have the tools or possibly the confidence to attempt a re-programming or coding event. CAS does offer remote assistance for these situations. We do it by remoting in through your iScan-3, Gscan-3 or Z-5 scan tool.
To learn more about this service call our remote support line at 833-397-3668 or your local CAS rep at 877-263-4897 ext. # 1...
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