Kia Optima Hybrid: Cruise Control System / Schematic Diagrams

System Block Diagram

Component Parts And Function Outline
Component part
Function
ECU
Controls engine.
MCU
Controls drive motor.
ABS
Sends vehicle speed to HCU.
HCU
Receives signals from sensor and control switches.
Cluster (Cruise control indicator)
Illuminate when CRUISE main switch is ON (Built into cluster)
Cruise Control switches
ON/OFF switch
Switch for automatic speed control power supply.
Resume/Accel switch
Controls automatic speed control functions by Resume/Accel switch (Set/Coast switch)
Set/Coast switch
Cancel switches
Cancel switch
Sends cancel signals to HCU.
Brake-pedal switch
Transaxle range switch (TCU)

Description and Operation

Cruise Control The cruise control system is engaged by the cruise "ON/OFF" main switch located on right of steering wheel column. The system has the capability to cruise, coast, accelerate and resume speed. ...

Troubleshooting

Trouble Symptom Charts Trouble Symptom 1 Trouble Symptom 2 Trouble symptomProbable causeRemedyThe set vehicle speed varies greatly upward or downward"Surging" (repeated alternating acceleration and deceleration) ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: ESC OFF Switch Description and Operation


Description 1. The ESC OFF switch is for the user to turn off the ESC system. 2. The ESC OFF lamp is on when ESC OFF switch is engaged. ...

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


Replacement 1. Remove the condenser, and then remove the bottom cap (B) with L wrench (A) from the condenser. Tightening torque : 20~25N.m (2.0~2.5kgf.m, 14.5~18.2lb-ft) 2. Remove the desiccant (A) from condenser using a long nose plier. Check for crumbled desiccant and clogged bottom cap filter. 3. ...

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