Kia Forte BD Quiz
Engine Electrical System

Smart Cruise Control

In this manual: Engine Electrical System
General Information — 8Maintenance — 32Engine Mechanical System — 47Engine Electrical System — 17Emission Control System — 10Engine Control System/Fuel System — 32Clutch System — 11Manual Transmission — 11DCT (Dual Clutch Transmission) System — 16Drive Shaft and Axle — 8Suspension System — 26Steering — 9Restraints — 11Brake System — 27Body (Interior and Exterior) — 119Body Electrical System — 98Heating, Ventilation, and Air Conditioning — 27
33steps
~213min
5/5difficulty
3special tools
Done 0 of 33

Specifications

Specification

Item Specification
Power Supply (V) 12
Operating Voltage (V) 9 - 16

Components and Component Location

Component Location

Description and Operation

Description

The Smart Cruise Control unit is installed at the front right side of the chassis. The radar sensor is built into the front of the unit. This sensor detects vehicles and objects ahead of the vehicle. The radar sensor can detect up to 64 objects ahead of the vehicle. A warning is triggered when the vehicle deviates from the reference points of horizontal and vertical alignment during operation. This sensor communicates with the instrument cluster, warning buzzer, smart cruise control switch, Electronic Stability Program (ESP), ECM and TCM via the CAN bus. The sensor monitors vehicle speed through CAN communication between the ESP system and the ECM and TCM.

Circuit Diagrams

Wiring Diagram

Repair Procedures

Removal

  1. Remove the front bumper.

    (Refer to Body (Interior and Exterior) - "Front Bumper Assembly")

  2. Disconnect the SCC and FCA radar connector (A).

  3. Remove the SCC and FCA radar (B) after loosening the mounting nuts.

Installation

  1. Install in the reverse order of removal.

  2. Align the variant coding procedure.

    (Refer to Adjustment - "Variant Coding")

  3. Align the smart cruise control radar sensor.

    (Refer to Adjustment - "Smart Cruise Control (SCC) Adjustment").

Adjustment

Variant Coding

  1. Turn the ignition off.

  2. Connect the KDS to the Data Link Connector (DLC).

  3. Turn the ignition on.

  4. Select "Vehicle, Model Year, Engine, System".

  5. Select "Vehicle Software Management".

  6. Perform variant coding.

Smart Cruise Control (SCC) Sensor Alignment

The Smart Cruise Control (SCC) system is designed to prevent a potential collision or reduce its impact when the driver applies inadequate or late braking, or does not brake at all, to avoid a collision.

For the radar sensor to operate correctly, it must be aligned correctly parallel to the vehicle's direction of travel. For this reason, the radar sensor alignment procedure must be performed each time the sensor is reinstalled or replaced with a new one.

If the sensor alignment procedure is not performed under the conditions specified above, the smart cruise control system may not operate correctly.

Smart Cruise Control (SCC) Radar Alignment

  1. Park the vehicle horizontally on level ground.

  2. Mark the center point of the emblem (A) and the center point on the windshield glass (B).

  3. Attach the SCC calibration laser (SST No.: 09964-C1200) to the tripod (SST No.: 09964-C1300).

  4. Using the SCC calibration reflector [SST No.: 09964-C1100] (A), adjust the wire (D) so that the center point of the emblem (B) and the center point on the ground (C) are perpendicular to each other.

  5. Install the vertical/horizontal laser [SST No.: 09964-C1200] (A) at a distance of more than 4.2 m (12.5 ft) from the front of the vehicle.

  6. Align the vertical laser line with (A) and (B) using the vertical/horizontal laser (C) [SST No.: 09964-C1200].

  7. Mark (C) at a distance of 1.0–3.8 m (3.3–12.5 ft) from (A) in front of the vehicle.

  8. Remove the SCC calibration laser [SST No.: 09964-C1200] (B) from the tripod [SST No.: 09964-C1300] (A).

  9. Install the reflector [SST No.: 09964-C1100] (B) on the stand [SST No.: 09964-C1300] (A).

  10. Align the vertical weight (B) of the SCC calibration reflector [SST No.: 09964-C1100] (A) with point (C).

  11. Using the level vial (B) of the stand [SST No.: 09964-C1300] (A), set the reflector horizontally.

  12. Set the height of the SCC calibration reflector [SST No.: 09964-C1100] (A) to 330 mm (13.0 in.).

  13. Visually check the radar sensor and front bumper surface again for any objects.

  14. Connect the KDS to the vehicle DLC and start the sensor alignment.

  15. After selecting the correct vehicle model, select "Radar Sensor Alignment" from the auxiliary functions in the KDS menu.

  16. Perform the sensor alignment by following the instructions shown on the KDS monitor.

  17. If the sensor alignment fails, check the alignment conditions. Turn the ignition off, then repeat the sensor alignment procedure.

Inspection

Smart Cruise Control system troubleshooting procedures:

  1. Inspect the front bumper appearance and accident history (bumper appearance, vehicle service history, and bumper replacement history).

    → If the vehicle has been in an accident, there is a high possibility that the SCC mounting bracket is twisted.

  2. Check whether the radar sensor cover on the bumper is contaminated.

    → If the cover is dirty, there is a high possibility that the SCC will be blocked by foreign substances during operation.

  3. After starting the engine, check the SCC warning message on the cluster and the DTC. (Refer to the Diagnostic Trouble Code Chart.)

  4. After starting the engine, stop the vehicle for more than 5 seconds.

    → If system initialization (yaw rate sensor offset compensation) is not complete, the SCC will not operate.

Test yourself

A quick Kia Forte BD quiz: every answer comes with an explanation and a link to the manual page.