Hyundai Ioniq: Immobilizer System / Immobilizer Control Unit. Repair procedures

Hyundai Ioniq (AE) 2017-2025 Service Manual / Body Electrical System / Immobilizer System / Immobilizer Control Unit. Repair procedures

Removal

1.	Disconnect the negative (-) battery terminal.

2.	Remove the main crash pad assembly. (Refer to Body - "Main Crash Pad Assembly")

3.	Discnnect the connector of the immobilizer unit and then remove the immobilizer unit (A) after loosening a nut.

Installation

1.	Install the immobilizer control unit after connecting the unit connector.

2.	Install the main crash pad assembly.

3.	Connect the negative (-) battery terminal.

Repair procedures

Teaching Procedures1.Key Teaching ProcedureKey teaching must be done after replacing a defective PCM (ECM) or when providing additional keys to the vehicle owner...

Antenna Coil. Repair procedures

Removal1.Disconnect the negative (-) battery terminal.2.Remove the steering column shroud panel.(Refer to Body - "Steering Column Shroud Panel")3.Disconnect the 6P connector (B) of the coil antenna and then remove the coil antenna (A) after loosening the screw...

Other information:

Hyundai Ioniq (AE) 2017-2025 Service Manual: Side Impact Sensor (SIS). Components and components location

C..

Hyundai Ioniq (AE) 2017-2025 Service Manual: ICM (Integrated Circuit Module) Relay Box. Repair procedures

InspectionOut Side Mirror Folding RelayCheck for continuity between the terminals.1.There should be continuity between the No.17 and No.16 terminals when power and ground are connected to the No.17and No.19 in the ICM-B.Out Side Mirror Unfolding RelayCheck for continuity between the terminals...