Kia Optima Hybrid: Hydraulic System / Oil Pump Uni t(OPU) Description and Operation

Description
The oil pump main relay is installed within the HEV fusible link box of the engine room. When the Oil Pump Unit (OPU) triggers the oil pump main relay, electric current needed to operate the Electric Oil Pump (EOP) passes through the Oil Pump Unit (OPU) and is supplied to the Electric Oil Pump (EOP).
In general, the Electric Oil Pump (EOP) operation is controlled by TCM via CAN communication, but in case of CAN communication failure, there is a back-up hard wiring between the TCM and Oil Pump Unit (OPU) as shown below.

Oil Pump Unit(OPU) Control System

Electric Oil Pump (EOP) Repair procedures

Removal 1. Disconnect the 12V battery negative (-) cable. 2. Remove the under cover (A). Tightening torque : 7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.7 lb-ft) 3. Remove the electric oil pump (EOP) connector ...

Oil Pump Uni t(OPU) Specifications

Specifications Operating voltage (V)12 Current15 ~ 20A (normal), 45A (Max.) ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Heater Unit Components and Components Location


Component Location Components 1. Heater Case (LH)2. Separator3. Evaporator Core4. Shower Duct5. Heater Core Cover6. Heater Core7. Mode Actuator8. Mode Cam9. Temp Actuator10. Vent Door Arm11. Floor Door Arm 1. Heater Case (RH)2. Temp Actuator (PA)3. Temp Door Lever4. Evaporator Temp Sensor5. Hearer Lower ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Fluid Components and Components Location


Component Location 1. ATF fill hole (eyebolt) 2. ATF level plug3. ATF drain plug ...

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