Toyota Yaris: ABS/TCS/DSC / Antilock Brake System (ABS)
The ABS control unit continuously monitors the speed of each
wheel. If one wheel is about to lock up, the ABS responds by
automatically releasing and reapplying that wheel’s brake.
The driver will feel a slight vibration in the brake pedal and may hear a
chattering noise from the brake system. This is normal ABS system
operation. Continue to depress the brake pedal without pumping the
brakes.
The warning light turns on when the system has a malfunction.
Refer to Contact Your Toyota Dealer and Have Vehicle Inspected.
- Braking distances may be longer on loose surfaces (snow or gravel, for
example) which usually have a hard foundation. A vehicle with a normal
braking system may require less distance to stop under these conditions
because the tires will build up a wedge of surface layer when the wheels
skid.
- The sound of the ABS operating may be heard when starting the engine or
immediately after starting the vehicle, however, it does not indicate a
malfunction.
WARNING
Do not rely on ABS as a substitute for safe driving
The ABS cannot compensate for unsafe and reckless driving, excessive
speed, tailgating (following another vehicle too closely), driving on ice and
snow, and hydroplaning (reduced tire friction and road contact because of
water on the road surface). You can still have an accident.
The Traction Control System (TCS) enhances traction and safety
by controlling engine torque and braking. When the TCS detects
driving wheel slippage, it lowers engine torque and operates the
brakes to prevent loss of traction...
Other information:
INSPECTION PROCEDURE 1. INSPECT INPUT SHAFT (a) Check the input shaft for wear and damage.
(b) Using a dial indicator, measure the input shaft runout. Maximum Runout: 0.01 mm (0.000394 in.) (1) If the runout exceeds the maximum, replace the input shaft...
FAIL-SAFE CHART FAIL-SAFE OPERATION
If there is a problem with sensor signals or actuator systems, the skid control ECU prohibits power supply to the brake actuator assembly and informs the ECM of an VSC system malfunction.
The brake actuator assembly turns off the solenoids and the ECM stops its VSC control according to signals from the skid control ECU...
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Stop the vehicle completely.
Manual transaxle:
Shift into neutral and set the parking brake.
Automatic transaxle:
Shift the selector lever to the P position and set the parking brake.
Press the push button start to turn off the engine. The ignition position is
off.
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