General Information

Smart Cruise Control

C1633 Cluster Invalid Displayed Speed - General Information

Component Location





General Description

SCC (Smart Cruise Control) is a system added additional function that can keep distance from the car ahead safely according to speed of the car ahead by using radar sensor to existing conventional ACC (Auto Cruise Control) function. SCC system consists of radar sensor which measures distance and speed against control target (the car ahead), SCC ECU which calculates needed acceleration/deceleration value, ECM for torque control and ESP ECU for brake control and calculating needed torque. SCC calculates the time that vehicle reaches the control target by calculating relative speed and distance against control target based on radar sensor signal. In case of the time too short compared with setting value, SCC will decrease vehicle speed automatically.

DTC Description

SCC monitors vehicle speed signal from cluster with every reception of the CAN message. SCC sets this code when abnormal vehicle speed is received from cluster. System recovers to normal condition as soon as the signal is alright again.

DTC Detecting Condition





Diagnostic Circuit Diagram