As we know , in order to distinguish between high, medium and low-end versions, the manufacturer had
to “hide” the digital display function even though the tire pressure monitoring hardware was installed on
the tires, and only provided users with tire pressure alarms. Every time a tire burst or leaked, we didn’t
know which tire was broken.
In order to activate our low-end version ford car’hidden features,we can use one UCDS OBD2
connecting cable to do so.
There is one tutorial on how to “flash” a car online. It turns out that some hidden functions can be
“unlocked”.
UCDS (Universal CAN Diagnostic System) is a diagnostic tool used for Ford and Mazda
vehicles that allows for various operations, including activating hidden features. It’s
more advanced than basic car OBD2 scanners and offers capabilities like module
programming, ECU coding, software updating, adaptation, calibration, and even chip
tuning.
Here’s a general guide on how to use UCDS to scan for and activate hidden features
in Ford cars, along with important considerations:
Understanding UCDS and its Capabilities:
Full Functionality: UCDS offers extensive functionality, including reading/clearing fault
codes, data streaming, module reset/installation, reprogramming ECUs (Engine Control
Unit), TCM (Transmission Control Module), BCM (Body Control Module), clearing airbag
crash data, and modifying As-Built files.
Hidden Feature Activation: This is one of its key strengths. UCDS allows you to activate
features that are present in your car’s hardware but disabled by default in the factory
software. Examples include:
.Automatic folding mirrors
.Digital speedometer
.Fuel economy menu
.Tire pressure monitoring system (TPMS) display
.Cruise control
.Automatic headlights/wipers.And many more, depending on your vehicle model and year.
Licenses and Tokens: Newer UCDS versions (like V5) often come with licenses (e.g., ODO
for mileage reset, EXT for extended functionality, PATS for key programming) that are
valid for a certain period (e.g., 1 month, 6 months, 1 year). Older versions might require
“tokens” for certain advanced operations like mileage programming or ECU chip tuning.
Once tokens are used up, you might need to buy a new cable or send it back for more.
Software and Hardware: UCDS consists of a hardware adapter (OBD2 interface) and the
UCDS software. It connects to your computer via USB or, in newer versions, wirelessly via
Wi-Fi.
Steps to Use UCDS for Hidden Features:
1.Obtain UCDS Hardware and Software:
o Purchase a legitimate UCDS diagnostic tool. Be aware that older versions might
have limitations or require tokens. Newer versions (like UCDS V5) often have
licenses that cover more functions without needing tokens for standard
operations.
o Ensure you have the correct software version compatible with your UCDS
adapter. The software typically comes on a CD or can be downloaded.
o Important: Disconnect from the internet when running the UCDS software and
do not update online if prompted, as this can sometimes lock the device.
2.Install Drivers and Software:
o Install the necessary USB-serial drivers (often FTDI drivers are recommended) on
your Windows PC.
o Install the UCDS software.
3.Connect to Your Ford Vehicle:
o Locate your car’s OBD-II port (usually under the steering column).
o Connect the UCDS OBD2 interface to the car’s OBD-II port and to your computer
via USB (or wirelessly if your adapter supports it).
o Turn on your car’s ignition (but you might not need to start the engine, though
some procedures recommend it).
4.Launch UCDS Software:
o Open the UCDS software on your computer.
o The main window will typically allow you to select the vehicle type or service
mode. Choose your vehicle model.
5.Identify Modules and Configurations:o UCDS will establish communication with your car’s modules (e.g., BCMii, IPC,
PCM, APIM).
o You’ll typically navigate to sections like “Configuration & Programming,” “Direct
Config,” or “As-Built files.”
o As-Built Data: Ford vehicles use “As-Built” data, which is a raw hexadecimal
configuration of your car’s modules. UCDS allows you to read, backup, edit, and
erase these files. This is where many hidden features are controlled.
6.Activate Hidden Features:
o Direct Config: For many modern Ford vehicles (especially Mondeo 5 and newer),
the “Direct Config” section allows for straightforward activation of features. You
might see a list of features with “Enabled” or “Disabled” options.
o As-Built Editing: For more advanced or older models, you might need to edit
specific values within the As-Built data. This requires some knowledge of which
hexadecimal values correspond to which features. You can use tools like
“As-Built Explorer” (which works with UCDS files) to compare and identify
changes.
o VBF Loader/Update Wizard: These sections allow you to load pre-made VBF
files (Ford’s calibration/firmware files) or update module software, which can
sometimes enable features or improve performance.
o Specific Examples (General Idea):
To enable a digital speedometer, you might go into the IPC (Instrument
Panel Cluster) module configuration and find the relevant setting to
change from “Disabled” to “Enabled.”
For auto-folding mirrors, you might need to update the door modules’
software or modify a BCMii setting.
7.Write Changes to the Module:
o After making the desired changes, you’ll need to “Write” the new configuration
to the car’s module.
o Crucial: Always back up the original configuration of any module before making
changes. This allows you to revert to the factory settings if something goes
wrong.
8.Test the Feature:
o Once the changes are written, disconnect UCDS and test the newly activated
feature to ensure it works as expected.
Important Safety and Best Practices:
Battery Voltage: Ensure your car’s battery has sufficient voltage, or better yet, connect a
battery maintainer. Low voltage during programming can lead to module corruption
(“bricking”).
Internet Connection: Disconnect from the internet while using UCDS to prevent
automatic updates that could potentially harm the device or software functionality.
Backup Everything: Before making any changes, always back up the original As-Built data
and module configurations. This is your safety net.
Understand the Risks: Modifying vehicle software carries risks. Incorrect changes can
lead to malfunctions, error codes, or even render modules inoperable. Proceed with
caution and only if you are comfortable with the process.
Research Specific Features: The exact steps and module locations for activating hidden
features vary significantly by Ford model and year. Always research specific guides or
forums for your particular vehicle to find the correct parameters to change.
Community Resources: Online forums and communities (like those dedicated to Ford
modifications or specific car models) can be invaluable resources for finding information,
sharing experiences, and getting help from experienced users.
UCDS vs. FORScan:
Both UCDS and FORScan are powerful tools for Ford diagnostics and modifications.
While FORScan is often more accessible and has a large community, UCDS is
generally considered more professional and capable of deeper-level programming,
including “Direct Config” and VBF flashing that FORScan might not handle as easily.
UCDS can also perform certain chip tuning operations and mileage corrections that
FORScan typically cannot. However, UCDS can be more expensive and might require
specific licenses or tokens for advanced features.
In summary, UCDS is a potent tool for unlocking your Ford’s hidden potential.
However, it requires careful handling, thorough research, and a strong
understanding of the risks involved.
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