The ESP is a system to stabilize a car during understeer and oversteer events by supplying appropriate wheel with braking pressure according to signal of yaw & G sensor, SAS, WSS, pressure sensor.
Under normal conditions, the inlet valves of all four wheels are not closed during control for longer than 1.28s or If the controller requests pressure-hold or pressure-decrease for longer than 1.28s, a fault is detected.
The ABS/ESP warning lamp is turned ON and the EBD warning lamp is turned OFF.
Item | Detecting Condition | Possible cause | |
DTC Strategy | ● Signal monitoring | ● Faulty HECU | |
Monitoring Period | ● Continuous | ||
Enable Conditions | ● If the controller requests pressure-hold or pressure-decrease for longer than 1.28s, a fault is stored. ● Under normal conditon, the inlet valves of all four wheels are not closed during control for longer than 1.28s. | ||
Fail Safe | ● The ABS/ESP functions are inhibited, allow the EBD control. ● The ABS/ESP warning lamps are activated. | ||
