Outline
ABS control occurs when wheel slip is determined by the DSC CM (based on the four ABS wheel-speed sensors). Then, the DSC HU inlet and outlet solenoid valves are operated and brake fluid pressure is controlled accordingly to prevent wheel lock-up.
Feature
Use of ABS control during emergency braking or on slippery road surfaces allows directional stability to be maintained, steerability ensured, and stopping distance to be reduced.
The ABS control system has independent front wheel control and unified control (select low) for the rear wheels.
NOTE:
Select low control: A control system in which the left and right vehicle wheel speeds are compared and brake fluid pressure is controlled according to the wheel most likely to lock-up.
Construction
Block Diagram

Operation
When the DSC CM determines wheel slip conditions based on the signals from the ABS wheel-speed sensors during braking, the DSC CM operates the DSC HU inlet and outlet solenoid valves, reducing and maintaining brake fluid pressure in accordance with the wheel slip factors. Then, when the wheel slip condition has passed, brake fluid pressure is increased and maintained, ensuring braking with a constantly stable brake force.
Control condition transition diagram

ABS
ABS Wheel Speed Sensor And ABS Sensor RotorPrecaution
Intermittent Concern Troubleshooting
Vibration method
If a malfunction occurs or becomes worse while driving on a rough road or
when the engine is vibrating, perform the following steps.
NOTE:
There are several reasons why vehicle or engine vibration could cause an
electr ...
Refrigerant Charging
CAUTION:
Do not use a different type of refrigerant or charge beyond the specified
level. Otherwise, cooling ability will be lowered and the A/C compressor could
be damaged.
Charging Recycled HFC-134a Refrigerant
1. Connect an HFC-134a recovery/recycling/recharging device to the ...
Back Up Light Switch Inspection
1. Disconnect the negative battery cable..
2. Remove the front under cover No.2..
3. Remove the back-up light switch..
4. Verify that the continuity between the back-up light switch terminals is as
indicated in the table.
If not as indicated in the table, replace the back-up ...