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Figure 4-21 Sample of the Special Functions for the Injection system of Renault Duster ii ph
Usually, special functions provide various reset or re-learning function menus for most vehicle systems. You
can easily and quickly solve some faults through special functions for your car. After some functions are
successfully executed, fault codes will be generated, which need to be cleared manually after the car is running
for a little while.
And under each system, you can view the special features supported by that system. Different models and
systems often have different special functions. Even for the same system of the same model, the years and
ECU type may lead to different special functions supported.
4.4. ECU CODING & PROGRAMMING
Since the introduction of OBD II and leading up to modern Hybrids and EVs, computers, and software in cars
have been expanding at an exponential rate. In-car software is becoming one of the leading needs for service,
and updating software may be the only way to fix some of these 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.
There are two general types of programming operations:
⚫ ECU Coding
ECU Coding, also known as Teach-in Program, or Component Adaptation, is used to reprogram adaptive data
for electronic control modules after repairs or replacements of parts.
*NOTE: Codable control modules/components are system-specific, which means that not all control modules
are codable.
⚫ ECU Programming
ECU Online programming means a user could download the latest version of the 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 ECU of vehicles.
Reprogramming involves taking the following steps, but there may be changes related to the vehicle type, so
please complete the operation according to the actual situation and software prompts.
⚫ Available programming or coding operations vary by test vehicle. Only the available operations are
displayed in the tablet menu.
⚫ The programming function applies only when the vehicle is connected with a VCI device, which serves as
a PassThru interface to establish communication with and transfer data to the vehicle’s ECU.
⚫ Before applying the ECU programming function, please make sure that the tablet computer is connected
to a stable Internet connection so that the tablet computer can access the vehicle manufacturer's server
for update services.
⚫ Selecting the programming or coding function will open a menu of operating options, which differs
depending on the vehicle’s make and model. Selecting a menu option either displays a programming
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