Toyota CAMRY 2002 Service Manual page 92

CH-180
8. Skid Control ECU
VSC
Based on the 4 type of sensor signals received from the speed sensors, yaw rate sensor, deceleration sensor
and steering sensor, the skid control ECU calculates the amount of vehicle condition.
If a strong understeer or oversteer tendency is created during an emergency avoidance maneuver or corner-
ing, and the skid control ECU determines that the amount of vehicle condition exceeds a prescribed value,
it controls the engine torque through throttle and the brake fluid pressure according to the amount of
the vehicle condition.
Level of Strong
Under Steering
or Over Steering
Amount of
Vehicle
Condition
Engine Torque
Brake Wheel
Cylinder Fluid
Pressure*
*: The wheel cylinder that activates varies depending on the condition of the vehicle.
Initial Check
After the ignition is turned ON, and the vehicle attains an approximate speed of 6 km/h (4 mph) or more
only at first time, the skid control ECU performs the initial check.
The functions of each solenoid valve and pump motor in the brake actuator are checked in order.
CHASSIS — BRAKE
Start to Fuel Cutoff Control
Open
High
Start to Brake Control Brake Control Completed
Time
Throttle Control
Completed
151CH31