| Trouble Symptom Charts |

| Component part | Function |
| Cruise Control Switch | Input the set speed and distance to the SCC ECU. |
| Instrument Cluster | Display various information inputted from SCC. |
| Smart Cruise Control Unit | Recognize and track the vehicle ahead. Calculate the target speed and distance Request the acceleration and retardation to ESP |
| VDC (HECU) | Perform automatic braking and request the engine torque control to the engine (ECM) Request to turn the stop lamp indicator ON |
| Engine (ECM) | Control the engine torque |
| Electronic Parking Brake (EPB) | Control the EPB torque |
| Stop lamp | Turn the stop lamp indicator ON |
General Safety Information and Caution Be careful of the following precautions when driving the vehicle using the smart cruise control system.
Description The smart cruise control system allows a driver to program the vehicle to control the speed and following distance by detecting the vehicle ahead without depressing the brake pedal and the accelerator pedal.
Component Location Index Engine Room [Lambda Engine] 1. Expansion Valve2. Suction & Liquid Tube Assembly3. Service Port (Low Pressure)4. Service Port (High Pressure)5. A/C Pressure Transducer (APT)6. Compressor7. Condenser8. Receiver-drier [Tau Engine] 1.
Inspection 1. Turn the ignition switch ON. 2. Connect the GDS. 3. Emit intensive light toward the photo sensor using a lamp, and check the output voltage change. 4. The voltage will rise with higher intensive light and fall with lower intensive light.