Teaching Procedures |
1. |
Key Teaching Procedure
Key teaching must be done after replacing a defective PCM (ECM) or when
providing additional keys to the vehicle owner.
The procedure starts with an PCM (ECM) request for vehicle specific
data (PIN code: 6digits) from the tester. The "virgin" PCM (ECM) stores
the vehicle specific data and the key teaching can be started. The "learnt"
PCM (ECM) compares the vehicle specific data from the tester with the
stored data. If the data are correct, the teaching can proceed.
If incorrect vehicle specific data have been sent to the PCM (ECM) three
times, the PCM (ECM) will reject the request of key teaching for one
hour. This time cannot be reduced by disconnecting the battery or any
other manipulation. After reconnecting the battery, the timer starts
again for one hour.
The key teaching is done by ignition on with the key and additional
tester commands. The PCM (ECM) stores the relevant data in the EEPROM
and in the transponder. Then the PCM (ECM) runs the authentication required
for confirmation of the teaching process. The successful programming
is then confirmed by a message to the tester.
If the key is already known to the PCM (ECM) from a previous teaching,
the authentication will be accepted and the EEPROM data are updated.
There is no changed transponder content (this is impossible for a learnt
transponder).
The attempt to repeatedly teach a key, which has been taught already
during the same teaching cycle, is recognized by the PCM (ECM). This
rejects the key and a message is sent to the tester.
The PCM (ECM) rejects invalid keys, which are presented for teaching.
A message is sent to the tester. The key can be invalid due to faults
in the transponder or other reasons, which result from unsuccessful
programming of data. If the PCM (ECM) detects different authenticators
of a transponder and an PCM (ECM), the key is considered to be invalid.
The maximum number of taught keys is 8
If an error occurs during the Immobilizer Service Menu, the PCM (ECM)
status remains unchanged and a specific fault code is stored.
If the PCM (ECM) status and the key status do not match for teaching
of keys, the tester procedure will be stopped and a specific fault code
will be stored at PCM (ECM).
|
2. |
User Password Teaching Procedure
The user password for limp home is taught at the service station. The
owner of the vehicle can select a number with four digits.
The user password teaching is only accepted by a "learnt" PCM (ECM).
Before first teaching of user password to an PCM (ECM), the status of
the password is "virgin" No limp home function is possible.
The teaching is started by ignition on, with a valid key (learnt key)
and sending the user password by tester. After successful teaching,
the status of the user password changes from "virgin" to "learnt"
The learnt user password can also be changed. This can be done if the
user password status is "learnt" and the tester sends authorization
of access, either the old user password or the vehicle specific data.
After correct authorization, the PCM (ECM) requests the new user password.
The status remains "learnt" and the new user password will be valid
for the next limp home mode.
If wrong user passwords or wrong vehicle specific data have been sent
to the PCM (ECM) three times continuously or intermittently, the PCM
(ECM) will reject the request to change the password for one hour. This
time cannot be reduced by disconnecting the battery or any other actions.
After reconnecting the battery, the timer starts again for one hour.
|
Limp Home Function |
1. |
Limp Home By Tester
If the PCM (ECM) detects the fault of the SMARTRA or transponder, the
PCM (ECM) will allow limp home function of the immobilizer. Limp home
is only possible if the user password (4 digits) has been given to the
PCM (ECM) before. This password can be selected by the vehicle owner
and is programmed at the service station.
The user password can be sent to the PCM (ECM) via the special tester
menu.
Only if the PCM (ECM) is in status "learnt" and the user password status
is "learnt" and the user password is correct, the PCM (ECM) will be
unlocked for a period of time (30 sec.). The engine can only be started
during this time. After the time has elapsed, engine start is not possible.
If the wrong user password is sent, the PCM (ECM) will reject the request
of limp home for one hour. Disconnecting the battery or any other action
cannot reduce this time. After connecting the battery to the PCM (ECM),
the timer starts again for one hour.
|
2. |
Limp Home by Ignition Key
The limp home can be activated also by the ignition key. The user password
can be input to the PCM (ECM) by a special sequence of ignition on/off.
Only if the PCM (ECM) is in status "learnt" and the user password status
is "learnt" and the user password is correct, the PCM (ECM) will be
unlocked for a period of time (30 sec.).
The engine can be started during this time. After the time has elapsed,
engine start is not possible. After a new password has been input, the
timer (30 sec.) will start again.
After ignition off, the PCM (ECM) is locked if the timer has elapsed
8 seconds. For the next start, the input of the user password is requested
again.
|
Replacement |
Problem |
Part set |
GDS required? |
All keys have been lost |
Blank key (4) |
YES |
Antenna coil unit does not work |
Antenna coil unit |
NO |
ECM does not work |
PCM (ECM) |
YES |
Ignition switch does not work |
Ignition switch with Antenna coil unit |
YES |
Unidentified vehicle specific data occurs |
Key, PCM (ECM) |
YES |
SMARTRA unit does not work |
SMARTRA unit |
YES |
1. |
Things to remember before a replacement (PCM (ECM))
|
2. |
Things to remember before a replacement (Keys & Additional registration)
|
|
|
Hyundai Creta GS 2014-2024 Owners Manual: Low tire pressure telltale
When the tire pressure monitoring
system warning indicator is illuminated,
one or more of your tires is significantly
under-inflated.
If the telltale illuminates, immediately
reduce your speed, avoid hard cornering
and anticipate increased stopping
distances. You should stop and
che ...
Hyundai Creta GS 2014-2024 Service Manual: Compression test
Compession Pressure Inspection
•
If the there is lack of power, excessive oil consumption or
poor fuel economy, measure the compression pressure.
...