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General Information





ESP (CTC)
C1503 TCS/ESC (ESP) Switch error - General Information

Component Location





General Description

A Driver can suspend the ESC function by ESC OFF switch. When this switch signal is delivered into the HECU, the ESC warning lamp is turned on and the ESC control is stopped. When the next switch signal is inputted again, the ESC function is ready. This function is used for sporty driving or vehicle inspection.

DTC Description

The HECU monitors the ESC OFF switch signal and if the ESC OFF switch signal is inputted for more than 1 minute, This DTC is set.

DTC Detecting Condition





Diagnostic Circuit Diagram