Removal |
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Hybrid Power Control Unit (HPCU)
1. |
Shut off the high voltage circuit. (Refer to Hybrid Control System - “High Voltage Shutoff Procedure”) |
2. |
Remove the air cleaner assembly and air duct. (Refer to Engine Mechanical System - "Air Cleaner") |
3. |
Remove the ECM & TCM bracket assembly. (Refer to Engine Control/Fuel System - "Engine Control Module") |
4. |
Drain the coolant of hybrid motor cooling system. (Refer to Hybrid Motor Cooling System - "Coolant") |
5. |
Remove the HPCU protector (A) after loosening the mounting bolts.
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6. |
Disconnect the motor power cable connector (A) and HSG power cable connector (B).
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7. |
Disconnect the power cable (A) [↔ High voltage battery system assembly] and power cable (B) [↔ HSG & Electric A/C compressor].
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8. |
Disconnect the HCU & inverter (MCU) connector (A).
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9. |
Disconnect the coolant outlet hose & pipe (A) after loosening the mounting bolt.
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10. |
Disconnect the LDC power output cable (A) and LDC ground (-) cable (C) after loosening the mounting bolt and nut.
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11. |
Remove the HPCU (B) after loosening the mounting bolts.
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12. |
Remove the coolant hose & pipe (A) from the HPCU. |
13. |
Remove the reservoir (B) after loosening the mounting bolts.
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Hybrid Power Control Unit (HPCU) Tray
1. |
Remove the hybrid power control unit. (Refer to Hybrid Control System - "Hybrid Power Control Unit (HPCU)") |
2. |
Remove the hybrid power control unit tray (A) after loosening the mounting bolts.
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Installation |
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1. |
Install the HPCU in the reverse order of removal. |
2. |
Refill the hybrid motor cooling system coolant and perform air bleeding by using the KDS/GDS. (refer to Hybrid Motor Cooling System - "Coolant"). |
Adjustment |
Perform HCU Variant Coding and Engine Clutch / Motor Resolver learning after replacing the HPCU. |
HCU Variant Coding |
1. |
Switch "OFF" the ignition. |
2. |
Connect the KDS / GDS to Data Link Connector (DLC). Switch "ON" the ignition. |
3. |
Select "Vehicle, Model year, Engine, System". |
4. |
Select "Vehicle S/W Management". |
5. |
Select "HCU Variant Coding".
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Engine Clutch / Motor Resolver learning procedure |
Perform Engine Clutch / Motor Resolver learning after replacing the HPCU.
(Refer to Clutch System - "Engine Clutch Actuator")
Kia Niro 2017 (DE HEV) Service Manual: Heated Oxygen Sensor (HO2S) Repair procedures
Inspection
1.
Switch "OFF" the ignition.
2.
Disconnect the HO2S connector.
3.
Measure resistance between the HO2S terminals 4 and 5 [B1/S1].
Specification: 2.5 - 4.0Ω [20°C(68°F)]
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Kia Niro 2017 (DE HEV) Service Manual: Active Air Flap (AAF) Repair procedures
Removal and Installation
1.
Remove the air duct.
(Refer to Intake and Exhaust System - "Air Cleaner")
2.
Remove the front bumper cover.
(Refer to Body (Interior and Exterior) - "Front Bumper Cover")
3 ...