Hybrid Power Control Unit (HPCU)
WARNING: This page is about a different car, the 2017 Kia Niro. However, it is still accessible from the selected car via links, so may be relevant.
- Shut-Off the high voltage circuit.
(Refer to Hybrid Control System - "HIGH VOLTAGE SHUT-OFF PROCEDURE ")
- Remove the air cleaner assembly and air duct.
(Refer to Engine Mechanical System - "AIR CLEANER ")
- Remove the ECM & TCM bracket assembly.
(Refer to Engine Control/Fuel System - "ENGINE CONTROL MODULE ")
- Drain the coolant of hybrid motor cooling system.
(Refer to Hybrid Motor Cooling System - "HYBRID MOTOR COOLING SYSTEM ")
- Remove the HPCU protector (A) after loosening the mounting bolts.
- Disconnect the motor power cable connector (A) and HSG power cable connector (B).
- Disconnect the power cable (A) [↔ High voltage battery system assembly] and power cable (B) [↔ HSG & Electric A/C compressor].Fig 3: Disconnecting Power Cable (High Voltage Battery System Assembly) And Power Cable (HSG & Electric A/C Compressor)
Courtesy of KIA MOTORS AMERICA, INC.
Information
Remove the inverter power cable in the following order.
- Disconnect the HCU & inverter (MCU) connector (A).
- Disconnect the coolant outlet hose & pipe (A) after loosening the mounting bolt.
- Disconnect the LDC power output cable (A) and LDC ground (-) cable (C) after loosening the mounting bolt and nut.
LDC Power (12V) Output Cable Mounting Nut:
10.8 - 13.7 N.m (1.1 - 1.4 kgf.m, 7.9 - 10.1 lb.ft)
LDC Ground Cable Mounting Bolt:
7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb.ft)
- Remove the HPCU (B) after loosening the mounting bolts.
HPCU Mounting Bolt:
21.6 - 23.5 N.m (2.2 - 2.4 kgf.m, 15.9 - 17.4 lb.ft)
- Remove the coolant hose & pipe (A) from the HPCU.
- Remove the reservoir (B) after loosening the mounting bolts.
Reservoir Mounting Bolt:
3.9 - 5.9 N.m (0.4 - 0.6 kgf.m, 2.9 - 4.3 lb.ft)