Operation CHARM: Car repair manuals for everyone.
Home >> Hyundai >> 2012 >> Sonata L4-2.4L Hybrid >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Control Module >> Description and Operation >> Oil Pump Unit (OPU)
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Oil Pump Unit (OPU)





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




pro multis · About Operation CHARM