Hyundai Venue: Immobilizer System / Repair procedures

Hyundai Venue (QX) (2020-2024) Service Manual / Body Electrical System / Immobilizer System / Repair procedures

Inspection

The following section describes how to diagnose faults using a diagnostic instrument.

1.	Connect the cable of GDS to the data link connector in driver side crash pad lower panel, and turn on the GDS.

2.	Select the 'S/W Management' and 'Car model'.

3.	Select "Imoobilizer" and "LEARNT KEYS".

4.	form the "LEARNT KEYS" procedure according to the GDS screen message.

Password Teaching / Changing

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

The following section describes how to diagnose faults using a diagnostic instrument.

1.	Connect the cable of GDS to the data link connector in driver side crash pad lower panel, and turn on the GDS.

2.	Select the 'S/W Management' and 'Car model'.

3.	Select "Imoobilizer" and "Password Teaching / Changing".

4.	Perform the "Password Teaching / Changing" procedure according to the GDS screen message.

Limp Home Function

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.

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.

1.	Connect the cable of GDS to the data link connector in driver side crash pad lower panel, and turn on the GDS.

2.	Select the 'S/W Management' and 'Car model'.

3.	"Imoobilizer" and "Limp Home Mode".

4.	Perform the "Limp Home Mode" procedure according to the GDS screen message.

Neutralizing Of ECM

The PCM(ECM) can be set to the "neutral" status by a tester.

A valid ignition key is inserted and after ignition on is recorded, the PCM(ECM) requests the vehicle specific data from the tester. The communication messages are described at "Neutral Mode" After successfully receiving the data, the PCM(ECM) is neutralized.

The teaching of keys follows the procedure described for the virgin PCM(ECM). The vehicle specific data have to be unchanged due to the unique programming of the transponder. If data should be changed, new keys with a virgin transponder are requested.

This function is for neutralizing the PCM(ECM) and Key. Ex) when lost key, Neutralize the PCM(ECM) then teach keys.

(Refer to the Things to do when Key & PIN Code the PCM(ECM) can be set to the "neutral" status by a scanner. If wrong vehicle specific data have been sent to SMATRA three times continuously or intermittently, the SMATRA will reject the request to enter neutral mode for one hour. Disconnecting the battery or other manipulation cannot reduce this time. After connecting the battery the timer starts again for one hour.)

•	Neutralizing setting condition

–	In case of PCM(ECM) status "Learnt" regardless of user password "Virgin or Learnt"

–	Input correct PIN code by scanner.

–	PIN code (6) & user password (4) deletion.

–	Locking of ECM (except key teaching permission)

•	Neutralizing meaning :

–	PIN Code(6) & User P/Word(4) deletion

–	Locking of EMS(except Key Learning permission)

1.	Connect the cable of GDS to the data link connector in driver side crash pad lower panel, and turn on the GDS.

2.	Select the 'S/W Management' and 'Car model'.

3.	Select "Imoobilizer" and "Veutral Mode".

4.	Perform the "Limp Home Mode" procedure according to the GDS screen message.

Description and operation

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