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) |

•
| Be careful not to damage the hub bolts when removing the front wheel and tire (A). |
|
|
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) |

|
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) |

|
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) |

|
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. |
|

|
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 |
|
Other information:
Removal1. Disconnect the vapor hose (A).2. Remove the PCV valve (B).Inspection1.Insert a thin stick (A) into the PCV valve (B) from the threaded side to check that the plunger movement.
•
If the plunger does not move (PCV valve is clogged), clean or replace the valve...
DescriptionIn ordinary cars, the mechanical water pump mounted on the engine for heating purposes is activated to circulate the cooling water, but in hybrid cars, AEWP is used to circulate the cooling water when the engine is not operating.
Classification
System
Cooling water used
Mechanical water pump
AEWP
Purpose of use
Note
(role of AEWP)
Engine
Heater
WHRS
While Engine is working(AEWP activated)OOOOnOffCooling engine(main function)-Heating-Exhaust heat recovery and WHRS cooling-OnFast warm -up while cooling or heating is turned onIncreased volume of cooling water circulationRight after engine is turned off(EWP working)XOOOffOnHeatingIn the EV mode, the cooling water is circulated towards the heater...
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