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C1503 TCS/ESC(ESP) Switch error

AutoHex Online Help: Hyundai ACCENT(RB) 2012
Component Location
General Description

Driver can inhibit the ESP control by ESP switch.

When switch signal sends into the HECU, the ESP warning lamp goes "ON" and the ESP control is stopped and if the next switch signal is inputted again, the ESP control is ready. This function is used for sporty driving or vehicle inspection.



DTC Description

This DTC is set when the condition that the level of ESP switch is high is continued for more than 60 seconds.

DTC Detecting Condition

Item

Detecting Condition

Possible cause

DTC Strategy

Circuit Monitoring

Open or short ESP switch

Faulty ESP switch

Enable Conditions

When the ESP switch is ON for 1 minute.

Fail Safe

Allow the ABS/EBD/ESP control.

The ESP warning lamp is not activated.

Specification

Engine ON

ESP switch HIGH

ESP switch LOW

7.0V ~ 16.0V

0V ~ 3.0V

Diagnostic Circuit Diagram