1.Transponder (TP) – IMMO ECU Communication
(1)IMMO_ECU after IGN on(or CPU Reset cancellation) is sent Challenge to TP and confirmed Serial Number and Signature.
(2)When response of input transponder is not correct, input is retry.
(3)When response of input transponder is correct, The data that calculate Encryption operation in the EEPROM program compared with received data from TP.When Codes is same, input is finished.If the codes are not same, input are continued until when codes are same.
(4)If IMMO_ECU EEPROM code is not programming, when correct transponder is inputted (CRC Check OK), input is finished.
(5)After IGN1 on(CPU Reset cancellation), IMMO_ECU is reading the maximum 5times Transponder Code
(6)In the IGN1 ON&EMS_state=Lock state, when received ANKNOWLEDGE, TP is re-authenticated
2.Transponder / IMMO ECU / EMS authentication
1.TransponderThe transponder 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.
2.Antenna CoilThe 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 in front of the steering handle lock.
3.ENCRYPTED IMMOBILIZER unitThe 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 PCM(ECM) and vice versa.
4.PCM (Power Train Control Module)The PCM(ECM) (A) carries out a check of the ignition key using a special encryption algorithm, which is programmed into the transponder as well as the PCM(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 PCM(ECM).ERN (Encrypted Randorm Number) value between EMS and encrypted smartra unit is checked and the validity of coded key is decided by EMS.
Hyundai Santa Cruz 2021-2025 Owners Manual: Surround View Monitor
Malfunction and Limitations
Surround View Monitor malfunction
When Surround View Monitor is not
working properly, or the screen flickers,
or the camera image does not display
properly, have the vehicle inspected by
an authorized HYUNDAI dealer.
Limitations of Surround View
Monitor
When the vehicle is stopped for a long ...
Hyundai Santa Cruz (NX4A OB) 2021-2025 Service Manual: Front Sub Frame
- Removal
• When lifting a vehicle using a lift, be careful not to damage
the lower parts of the vehicle (floor under cover, fuel filter, fuel
tank, canister).(Refer to General Information - "Lift and Support
Points")
1.Loosen the front wheel nuts slightly.Raise the ...