Hyundai Ioniq: ESP(Electronic Stability Program) System / Front Wheel Speed Sensor. Repair procedures
1. | Loosen the wheel nuts slightly. Raise the vehicle, and make sure it is securely supported. |
2. | Remove the front wheel and tire (A) from the front hub. Tightening torque : 107.9 - 127.5 N.m (11.0 - 13.0 kgf.m, 79.6 - 94.0 lb-ft) |

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| Be careful not to damage the hub bolts when removing the front wheel and tire (A). |
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3. | Loosen the bolt and then remove the wheel speed sensor (A). Tightening torque : 7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb-ft) |

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4. | Loosen the mounting holt and then remove the brake hose from the strut assembly. Tightening torque : 8.8 - 13.7 N.m (0.9 - 1.4 kgf.m, 6.5 - 10.1 lb-ft) |

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5. | Remove the front wheel guard. (Refer to Body - "Front Wheel Guard") |
6. | Disconnect the connector after removing the cable bracket mouniting bolt and fixed clip. Tightening torque : 8.8 - 13.7 N.m (0.9 - 1.4 kgf.m, 6.5 - 10.1 lb-ft) |

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7. | Installation in the reverse of removal. |
1. | Measure the output voltage between the terminal of the wheel speed sensor and the body ground. •
| In order to protect the wheel speed sensor, when measuring output voltage, a 100Ω resister must be used as shown. |
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2. | Compare the change of the output voltage of the wheel speed sensor to the normal change of the output voltage as shown below. 
V_Low : 0.59V - 0.84V V_High : 1.18V - 1.68V Frequency range : 1 - 2,500 Hz |
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Other information:
High Voltage Shut-off Procedures
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Be sure to read and follow the "General Safety Information and Caution" before doing any work related with the high voltage system. Failure to follow the safety instructions may result in serious electrical injuries...
Description•
Function : It circulates the coolant for the hybrid system (HPCU, drive motor, and HSG).•
Operating Principles: When the coolant temperature exceeds the limit set in the MCU in the hybrid system, the motor control unit (MCU) sends a command to the electric water pump (EWP) through the CAN communication to operate the EWP...
Categories

The Driver Position Memory System is provided to store and recall the following
memory settings with a simple button operation.
- Driver's seat position
- Side view mirror position
- Instrument panel illumination intensity
read more