If abnormal signal from either brake lamp switch or brake switch is detected, HECU sets DTC C1542.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Signal Monitoring | 1. Brake Lamp Switch Circuit Open/Short 2. Defected Brake Lamp Switch |
Threshold Value |
•
Brake Lamp Switch is ON for 120 sec upon vehicle speed of over 20 km/h and pressure sensor signal less than 7 bar.
•
Brake Lamp Switch OFF for more than 3 sec upon pressure sensor signal higher than 15 bar.
•
DTC is set and warning lamp is "ON" when failure is detected 3 consecutively times on same ignition cycle. | |
Warning Indicator Lamp Status |
•
ON | |
Clear Condition |
•
Ignition "OFF" and then "ON" |
