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