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: General Information


Identification Number Locations Identification Number Description Vehicle Identification Number 1. World Manufacturer Identifier (WMI) - KNA : Passenger vehicle, MPV(Multipurpose Passenger Vehicle)/SUV(Sports Utility Vehicle)/RV(Recreational Vehicle) 2. Vehicle line - G : OPTIMA 3. Model & Series ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Camshaft Position Sensor (CMPS) Description and Operation


Description Camshaft Position Sensor (CMPS) is a hall sensor and detects the camshaft position by using a hall element. It is related with Crankshaft Position Sensor (CKPS) and detects the piston position of each cylinder which the CKPS can''t detect. The CMPS is installed on engine head cover and uses ...

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