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C1513 Brake switch error

AutoHex Online Help: Hyundai VELOSTER(FS) 2012
Component Location
General Description

This switch is mounted on the pedal assembly and is used to send the status of the brake pedal to the HECU. There are two separate switches in the switch housing. The Brake Switch is normally closed while the Brake Light Switch is normally open.



DTC Description

The HECU checks for open or shorted circuits of the brake switch.

If an error is present, the warning lamp will illuminate.

DTC Detecting Condition

Item

Detecting Condition

Possible cause

DTC Strategy

Open circuit monitoring

Open circuit in brake switch line

Faulty brake light switch

Faulty input stage in HECU

Enable Conditions

If both BLS(brake lamp switch) and BS(brake switch) have a same state and MCP (Master Cylinder Pressure) >20bar for 500ms.

Outside an ABS/ESP control, and after normal operation of MCP, If the pressure sensor signal is higher than 20bar and BLS is low for 3sec.

If the BLS/BS changed more than 40times and MCP>20bar for 5sec.

While Vehicle speed > 10km/h, TPS>5%, MCP<7bar, if BLS is high over 1min.

Fail Safe

Inhibit the ESP/DBC control and allow the ABS/EBD control.

The ESP/DBC warning lamp is activated.

Specification

Brake Light Switch

Voltage Range of "High"

Voltage Range of "Low"

7.0V ~ 16.0V

0V ~ 3V

Diagnostic Circuit Diagram