Hyundai Ioniq: Clutch System / Engine Clutch Actuator. Repair procedures
| 1. | Turn the ignition switch OFF and disconnect the battery (-) terminal. |
| 2. | Remove the engine room under cover. (Refer to Engine Mechanical System - "Engine Room Under Cover") |
| 3. | Disconnect the engine clutch actuator connector (A). | •
| Make sure that the hydraulic fluid or foreign substance does not enter the connector assembly of the actuator. (Seal the assembly after disengaging the connector.) |
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| Be sure to lift the yellow safety pin before disengaging the connector. |
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| 4. | Disconnect the reservoir hose (B). | •
| Disconnect the reservoir hose, and then Be careful not to leak the fluid. |
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| Do not spill brake fluid on the vehicle, it may damage the paint; if brake fluid does contact the paint, wash it off immediately with water |
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| 5. | Remove the engine clutch actuator (A) from the hybrid motor assembly after loosening the bolts. Tightening torque : 21.6 - 26.5 N.m (2.2 - 2.7 kgf.m, 15.9 - 19.5 lb-ft) |
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| 1. | Install in the reverse order of removal. | •
| Before installing the engine clutch actuator, check the assembled state of the O-rings (A). 
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| After tightening bolts temporarily, tighten the bolt completely at the same time with regulation torque. |
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| 2. | After replacing the Engine clutch actuator, operate the followings in order using GDS equipment. | (1) | Engine clutch inspection line learning and diagnostic information. 
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| (2) | Removal of air from engine clutch hydraulic pressure line. | •
| When using a vacuum-pressure equipment to inject hydraulic fluid, the vacuum pressure should be no more than 2.5 torr and the injection pressure should be between 2.3 - 2.5 bars. |
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| If it is impossible to inject hydraulic fluid using the above condition, be sure to remove air from the hydraulic line of the engine clutch at a temperature between 0 - 40°C. |
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| (3) | Engine clutch/motor resolver adaptation. 
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| (4) | Stabilization of the engine clutch hardware transfer torque. 
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Other information:
Check Lane Keeping Assist (LKA) system
If there is a problem with the system a message will appear for a few seconds.
If the problem continues the LKA system failure indicator will illuminate.
LKA system failure indicator
The LKA system failure indicator (yellow) will illuminate if the LKA system is
not working properly...
Removal
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In case of removing the high pressure fuel pump, high pressure fuel pipe, delivery pipe, and injector, there may be injury caused by leakage of the high pressure fuel. So don’t do any repair work right after engine stops...
Categories
1. Door lock/unlock button
2. Driver position memory system
3. Side view mirror control switch
4. Central door lock switch
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