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C1503 TCS/ESC(ESP) Switch error

AutoHex Online Help: Hyundai ELANTRA(MD) 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 30 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/OFF for 30s.

Fail Safe

Allow the ABS/EBD/ESP control.

The ESP warning lamp is not activated.

Specification

ESP switch "ON"

Voltage Range of "High"

Above 60% of the battery voltage

Diagnostic Circuit Diagram