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4.9 Programming and Coding
Since the introduction of OBD II and leading up to modern Hybrids and EVs, hardware
and software technologies in cars have been advancing at an exponential rate. Updating
software may be the only way to fix the following issues:
Drivability
Fuel Efficiency
Power Loss
Fault Codes
Durability of Mechanical Parts
The Programming and Coding function is used to re-flash the vehicle control modules,
which allows you to update the computer software of the vehicle to the latest version, as
well as to reprogram adaptive data of certain components after making repairs or
replacements.
NOTE
The programming function applies only when the vehicle is connected with a VCMI
device, which serves as a PassThru interface to establish communication with and
transfer data to the vehicle's ECU.
Available programming or coding operations vary by test vehicle. Only the available
operations display in the tablet menu.
There are two general types of programming operations:
A. Coding – also known as Teach-in Program, or Component Adaptation, is used to
reprogram adaptive data for vehicle control modules after repairs or replacements
of vehicle parts.
B. Reprogramming – downloads the latest version of software from the online server
database through Internet access (this procedure is done automatically when the
tablet is connected to the Internet, so there is no need to check for software updates
yourself), and reprograms the newest version into the vehicle's ECU.
NOTE
Ensure that the tablet is connected to a stable internet access before applying the ECU
programming function, so that the tablet is able to obtain access to the vehicle
manufacturer's server for update service.
Selecting the Programming or Coding function opens a menu of operation options that
varies by vehicle make and model. Selecting a menu option either displays a
programming interface or opens another menu of additional choices. Follow all screen
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