Kia Optima Hybrid: Automatic Transaxle Control System / Output Speed Sensor Repair procedures

Inspection
1.
Check signal waveform of Input & output speed sensor using the GDS.

Specification: Refer to "Signal Wave Form" section.

Removal
   
Be sure to read and follow the “General Safety Information and Caution” before doing any work related with the high voltage system. Failure to follow the safety instructions may result in serious electrical injuries.
Be sure to shut off the high voltage circuit according to the “High Voltage Shut-off Procedures” before doing any work related with the high voltage system to avoid serious electrical injuries.
1.
Remove the valve body assembly.
(Refer to Hydraulic System - "Valve Body")
2.
Disconnect the input & output speed sensor connector (A).
3.
Remove the input & output speed sensor (B) after removing the bolts.

Tightening torque:
9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

Installation
1.
Install in the reverse order of removal.
   
Do not reuse the drain plug gasket and the valve body cover gasket, oil cooler tube washer.
Perform the procedures below after installing
1)
Refill the automatic transaxle with fluid.
(Refer to Hydraulic System - "Fluid")
2)
Refill the engine & transaxle cooling system with coolant.
(Refer to Engine Mechanical System - "Coolant")
3)
Refill the hybrid motor cooling system with coolant and then perform the air bleeding using the GDS.
(Refer to Hybrid Motor System - "Coolant")
4)
Reset the automatic transaxle adaptive values using the GDS.
5)
Confirm the coolant leak or fluid leak from the hose connections part in state of engine start.
Output Speed Sensor Troubleshooting

Signal Waveform ...

Engine Clutch Control Solenoid Valve (E/C_VFS) Description and Operation

Description Engine clutch control solenoid valve (E/C_VFS) is attached to the valve body. This variable force solenoid valve directly controls the hydraulic pressure to the engine clutch. ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Engine Control Module (ECM) Repair procedures


Removal 1. Shut off the High Voltage circuit. (Refer to “High Voltage Shut-off Procedures”) 2. Turn the ignition switch OFF and disconnect the auxiliary 12V negative (-) battery terminal. 3. Remove the air cleaner assembly. (Refer to Engine Mechanical System - "Intake And Exhaust System") 4. Disconnect ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Repair procedures


Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the driver crash pad lower panel. (Refer to the BD group - "Crash pad") 3. Remove the steering column upper and lower shrouds. (Refer to the BD group - "Crash pad") 4. Remove the wiper switch. (Refer to the BE group - "Multifunction switch") ...

© 2021 Copyright www.koptimatfhev.com