Hyundai Veloster: Description and Operation
Hyundai Veloster 2011-2017 Service Manual / Body Electrical System / Immobilizer System / Description and Operation
Hyundai Veloster 2011-2017 Service Manual / Body Electrical System / Immobilizer System / Description and Operation
Description
The immobilizer system will disable the vehicle unless the proper ignition
key is used, in addition to the currently available anti-theft systems such
as car alarms, the immobilizer system aims to drastically reduce the rate of
auto theft.
| 1. |
Transponder (TP) – IMMO ECU Communication
TP Read Protocol
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| 2. |
TP / IMMO ECU / EMS Authentication Flowchart
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Components Operations
ECM (Engine Control Module)
| 1. |
The ECM(PCM) (A) carries out a check of the ignition key using
a special encryption algorithm, which is programmed into the transponder
as well as the ECM simultaneously. Only if the results are equal, the
engine can be started. The data of all transponders, which are valid
for the vehicle, are stored in the ECM.
ERN (Encrypted Randorn Number) value between EMS and encrypted
Immobilizer unit is checked and the validity of coded key is decided
by EMS.
|
ENCRYPTED Immobilizer unit (A)
The Immobilizer carries out communication with the built-in transponder
in the ignition key. This wireless communication runs on RF (Radio frequency
of 125 kHz). The Immobilizer is mounted behind of the crash pad close to center
cross bar.
The RF signal from the transponder, received by the antenna coil, is converted
into messages for serial communication by the Immobilizer device. And, the received
messages from the PCM(ECM) are converted into an RF signal, which is transmitted
to the transponder by the antenna.
The Immobilizer does not carry out the validity check of the transponder
or the calculation of encryption algorithm. This device is only an advanced
interface, which converts the RF data flow of the transponder into serial communication
to the ECM and vice versa.
| [USA] |
| [CANADA] |
TRANSPONDER
The transponder (A) has an advanced encryption algorithm. During the key
teaching procedure, the transponder will be programmed with vehicle specific
data. The vehicle specific data are written into the transponder memory. The
write procedure is once only; therefore, the contents of the transponder can
never be modified or changed.
Antenna coil
The antenna coil (A) has the following functions.
| - |
The antenna coil supplies energy to the transponder.
|
| - |
The antenna coil receives signal from the transponder.
|
| - |
The antenna coil sends transponder signal to the Immobilizer.
It is located directly on the shroud.
|
Components and Components Location
Components
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Repair procedures
Replacement
Problems And Replacement Parts:
Problem
Part set
Scan tool required?
All keys have been lost
Blank key (4)
YES
...
See also:
Vehicle data collection and event data recorders
This vehicle is equipped with an event data recorder (EDR). The main purpose
of an EDR is to record, in certain crash or near crash-like situations, such as
an air bag deployment or hitting a road ...
License Lamp. Repair procedures
Removal
1.
Disconnect the negative(-) battery terminal.
2.
Replace the bulb after turning the socket (A).
Installation
...
Shoulder belt extension guide
You can adjust the position of the shoulder belt extension guide for easier access
to the shoulder belt.
Set the belt extension guide to the position (1~3) when using the seat belt.
WARNING
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