8020580-8020581

DTC Description

If abnormal Brake Lamp Relay signal is detected, HECU sets DTC C2130.

DTC Detecting Condition

Item	Detecting Condition	Possible cause
DTC Strategy	• Signal Monitoring	1. Brake Lamp Relay Circuit Open/Short 2. Defected Brake Lamp Relay
Threshold Value	• Brake Lamp Relay Drive "OFF" - Brake Lamp Drive is "ON" for more than 500 msec. - Brake Lamp Relay Monitor is different than ESS Brake Lamp Relay Monitor value for more than 3 sec.(ESS Brake Lamp Relay Applied Vehicle Only) - Brake Lamp Relay Monitor is different than BLS signal for more than 3 sec.(ESS Brake Lamp Relay Not Applied Vehicle Only) • Brake Lamp Relay Drive "ON" - Brake Lamp Drive is "OFF" for more than 500 msec. - Brake Lamp Relay is "OFF" for more than 500 msec.
Fail Safe	• CBC/TCS/ESC(ESP)/HAC/VSM/AVH inhibited(ESC[ESP] Only)
Warning Indicator Lamp Status	• ESC(ESP) Warning Indicator Lamp "ON"
Clear Condition	• Ignition "OFF" and then "ON"