Yuasa Yu-Fit User manual

Yu-Fit
Battery Configuration Tool
User Guide

Introduction
With the introduction of new CO2production control systems such as smart
charging and Idle Start/Stop (ISS) it is essential that the vehicle has the
correct battery type and specification installed.
An increasing number of automotive manufacturers have introduced systems
that now require a replacement battery is correctly configured to the vehicle
after installation.
Failure to configure the correct specification battery could result in:
Undercharging or overcharging of the battery resulting in damage
which is not covered by the manufacturer’s warranty
Loss of the ISS CO2production control system functionality
Possible loss of non-critical vehicle system functions
Battery configuration prevents incorrect battery charging, ensures the correct
operation of the ISS CO2production control system and prevents the loss of
non-critical vehicle systems.
The Yuasa Yu-Fit battery configuration tool allows the configuration process to
be carried out on a growing number of vehicles equipped with new technology
smart charge and ISS systems.
The configuration process therefore:
Informs the vehicle that a new battery has been installed
Informs the charging system of the new battery characteristics
Ensures the vehicle uses the correct charging parameters for the new
battery

Yu-Fit Registration
Before you can use the Yuasa Yu-Fit Battery Configuration Tool
it must be registered.
To register you must first download the Yu-Fit application suite
using the link at the foot of the Yuasa Workshop battery finder
web site located at http://batterylookup.yuasa.co.uk/
Once the application suite has been successfully installed follow
the on-screen instructions to complete the registration process.
By registering the product you will be able to take advantage of
the following:
Product and technical updates via email
Notification of application updates for the Yu-Fit
Attach your Yu-Fit unique PIN & Serial Number sticker here.
Yuasa Yu-Fit PIN & S/N

Yu-Fit Navigation
Navigation around the OLED display screen is controlled using the multi-
functional key pad which consists of:
Four arrow buttons (Up, Down, Left & Right)
OK button
ESC button
Mini USB port for
connection to PC
OK button
confirms the
selected option
ESC button
cancels or returns
from a menu
Arrows control the
cursor around the
screen
OLED display

Yu-Fit Connection
Once the vehicle battery has been replaced the Yu-Fit battery configuration
tool should be connected to the vehicle via the 16 Pin J1962 EOBD diagnostic
plug.
Yu-Fit LCD Icons
Diagnostic/Vehicle Selection
Select this to enter Vehicle Specific Serial Diagnostics function.
System Setup
Select this to configure the various settings of the Yu-Fit.
Information
Select this to display software and hardware information.

Selecting the System Setup icon displays the System Setup Menu which
allows the Yu-Fit user to adjust settings and carry out system tests if required.
Clock
Select this to view and if necessary set the date and time.
Garage/Workshop Information
Select this to display your user details. These can be edited using
the PC suite.
Volume
Select this to turn the sounder ON or OFF.
Test
Select this to carry out hardware tests on the Yu-Fit if requested by
Technical Support.

Language Selection
Select this to change the language used by the Yu-Fit.
Back
Select this to return to the previous menu.
Yu-Fit Battery Configuration Procedure
When the Yu-Fit is connected to the vehicle the Main Menu screen will be
displayed.
Using the keypad arrows navigate to the DIAGNOSTICS icon and confirm with
OK.
Select the BATTERY MANAGEMENT icon and confirm with OK.

Select VEHICLE SELECTION and confirm with OK.
Select the appropriate vehicle manufacturer form the SELECT
MANUFACTURER menu and confirm with OK.
Wait for the vehicle selection to be accepted, switch on the vehicle ignition and
confirm with OK.
Select the REPLACE BATTERY function and confirm with OK

Select the VALIDATE BATTERY option from the SELECT FUNCTION menu,
confirm with ‘OK’ and wait for the function to initialise.
NOTE:
The battery configuration procedure that the Yuasa Yu-Fit is capable of varies
dependent on the vehicle manufacturer and sophistication of the systems
installed on the vehicle.
Vehicles allowing limited access with the Yuasa Yu-Fit will only allow the
configuration of the correct specification replacement battery.
Vehicles allowing enhanced access with the Yuasa Yu-Fit will allow the
configuration of either correct /incorrect specification replacement batteries.
Based on this, the number of configuration steps may also vary and the level
of information required to carry out a successful battery configuration
procedure will differ and may include:
Is the new battery equivalent to the old one in both technology and
performance?
The name of the battery manufacturer
The technology of the new battery
The Ah capacity of the new battery
WARNING:
ALWAYS ENSURE THAT THE CORRECT TYPE AND SPECIFICATION OF
BATTERY IS INSTALLED ON THE VEHICLE
Select and confirm the correct battery data with OK

Wait for any fault codes to be cleared and conformation that the battery
configuration process has been successfully concluded before turning OFF
the ignition and disconnecting the Yu-Fit from the vehicle.

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