Kia Optima Hybrid: Cruise Control System / Schematic Diagrams
| System Block Diagram |
| 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: 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: Injector Specifications
Specification ItemSpecificationCoil Resistance (?)13.8 ~ 15.2 [20°C(68°F)] ...