Hyundai Ioniq: Steering Wheel / Electric Power Steering (EPS)

Hyundai Ioniq (AE) 2017-2025 Owner's Manual / Convenient features of your vehicle / Steering Wheel / Electric Power Steering (EPS)

The system assists you with steering the vehicle. If the vehicle is turned off or if the power steering system becomes inoperative, you may still steer the vehicle, but it will require increased steering effort.

Should you notice any change in the effort required to steer during normal vehicle operation, have the system checked by an authorized HYUNDAI dealer.

CAUTION

If the Electric Power Steering System does not operate normally, the warning light () will illuminate on the instrument cluster. You may steer the vehicle, but it will require increased steering efforts. Take your vehicle to an authorized HYUNDAI dealer and have the system checked as soon as possible.

Information

The following symptoms may occur during normal vehicle operation:

The steering effort may be high immediately after placing the Engine Start/Stop button in the ON position. This happens as the system performs the EPS system diagnostics. When the diagnostics are completed, the steering wheel will return to its normal condition.
A click noise may be heard from the EPS relay after the Engine Start/Stop button is in the ON or OFF position.
Motor noise may be heard when the vehicle is at a stop or at a low driving speed.
When you operate the steering wheel in low temperature, abnormal noise may occur. If temperature rises, the noise will disappear. This is a normal condition.
When an error is detected from the EPS, the steering effort assist function will not be activated in order to prevent fatal accidents. Instrument cluster warning lights may be on or the steering effort may be high. When the following symptoms occur, immediately drive the vehicle to a safe area and check it.

Steering Wheel

Tilt Steering / Telescope Steering

Adjust the steering wheel so it points toward your chest, not toward your face. Make sure you can see the instrument cluster warning lights and gauges...

Other information:

Hyundai Ioniq (AE) 2017-2025 Service Manual: DCT Control Module (TCM). Schematic diagrams

1. TCM Connector and Terminal Function2. TCM Terminal FunctionConnector [A] Pin Description Pin Description 1Clutch Actuator (Clutch Motor 1 (ODD)_Phase V)17-2Clutch actuator (Clutch Motor 2 (EVEN) Phase V)18Clutch Actuator (Clutch Motor 1 (ODD)_HALL 1)3Select Actuator (Select Solenoid 2 (EVEN)_Ground)19Clutch Actuator (Clutch Motor 1 (ODD)_Sensor Supply)4Select Actuator (Select Solenoid 1 (ODD) Push)20Select Actuator (Select Solenoid 1 (ODD)_Sensor Sensor Supply)5Clutch Actuator (Clutch Motor 1 (ODD)_Phase U)21Select Actuator (Select Solenoid 2 (EVEN)_Sensor Sensor Supply)6Clutch Actuator (Clutch Motor 2 (EVEN)_Phase U)22Select Actuator (Select Solenoid 2 (EVEN)_Sensor Ouput)7Select Actuator (Select Solenoid 1 (ODD)_Ground)23Clutch Actuator (Clutch Motor 2 (EVEN)_HALL 2)8Select Actuator (Select Solenoid 2 (EVEN)_ Pull)24Clutch Actuator (Clutch Motor 2 (EVEN)_HALL 3)9Clutch Actuator (Clutch Motor1 (ODD)_Phase W)25Clutch Actuator (Clutch Motor 2 (EVEN)_Ground)10Clutch Actuator (Clutch Motor 2 (EVEN)_Phase W)26Select Actuator (Select Solenoid 1 (ODD)_Sensor Output)11Select Actuator (Select Solenoid 1 (ODD) Pull)27-12Select Actuator (Select Solenoid 2 (EVEN) Push)28Clutch Actuator (Clutch Motor 2 (EVEN)_HALL 1)13Clutch Actuator (Clutch Motor 1 (ODD)_HALL 2)29Clutch Actuator (Clutch Motor 2 (EVEN)_Sensor Supply)14Clutch Actuator (Clutch Motor (ODD)_HALL 3)30Select Actuator (Select Solenoid 1 (ODD)_Sensor Ground)15Clutch Actuator (Clutch Motor 1 (ODD)_Ground)31Select Actuator (Select Solenoid 2 (EVEN)_Sensor Ground)16-32-Connector [B] Pin Description Pin Description 1-35-2-36-3ON / START Input37-4Paddle Shift (Up) Switch signal38-5Inhibitor Switch "P" Input signal39-6Inhibitor Switch "R" Input signal40-7Inhibitor Switch "D" Input signal41Shift Actuator (Shift Motor 2 (EVEN) _HALL 2)8Sports mode "Down" shift42Shift Actuator (Shift Motor 2 (EVEN) _HALL 3)9Clutch Speed Sensor (EVEN) Ground43Inhibitor Switch "M" Input signal10-44CAN1 Communication Port1 High11-45CAN1 Communication Port1 Low12-46-13Shift Actuator (Shift Motor 1 (ODD) _HALL 2)47-14Shift Actuator (Shift Motor 1 (ODD) _HALL 3)48Flex ray High (BP)15-49Input Speed Sensor Supply 1 (ODD)16-50Input Speed Signal 1 (ODD)17Battery Power Low VBD 51-18Paddle Shift Down signal52-19Shift Lever Select Switch53-20Inhibitor Switch "N" Input signal54Shift Actuator (Shift Motor 2 (EVEN) _Sensor Supply)21Sports mode "Up" shift55Shift Actuator (Shift Motor 2 (EVEN) _HALL 1)22-56Shift Actuator (Shift Motor 2 (EVEN) _Sensor Ground)23Input Speed Sensor Supply 2 (EVEN)57Power Ground 1 for High Current Modules245V spare Sensor Supply output58Power Ground 2 for High Current Modules25-59Shift Actuator (Shift Motor 2 (EVEN)_Phase W)26Shift Actuator (Shift Motor 1 (Odd)_Sensor Supply)60Shift Actuator (Shift Motor 1 (ODD)_Phase W)27Shift Actuator (Shift Motor 1 (ODD)_HALL 1)61 Power Ground 3 for High Current Modules28Select Actuator (Shift Motor 1 (ODD)_Sensor Ground)62-29-63Shift Actuator (Shift Motor 2 (EVEN)_Phase V)30CAN2 Communication Port2 High64Shift Actuator (Shift Motor 1 (ODD)_Phase V)31CAN2 Communication Port2 Low65Motor Sensor Supply Voltage 1 from Direct Battery32-66Motor Sensor Supply Voltage 2 from Direct Battery33-67Shift Actuator (Shift Motor 2 (EVEN)_Phase U)34Flex ray bus, BM68Shift Actuator (Shift Motor 1 (ODD)_Phase U)3...

Hyundai Ioniq (AE) 2017-2025 Service Manual: SRS Control Module (SRSCM). Description and operation

Description• Supplemental Restraint System Control Module (SRSCM) determines whether and when to deploy air bag module, seat belt pretensioner (BPT) and emergency fastenig device (EFD).• It supplies the air bag module with the power required to deploy the module or the BPT and EFD...