Toyota Hilux Surf 1993 Owner's Manual page 722

BRAKE SYSTEM – Rear–Wheel Anti–Lock Brake System
With the engine running, the brake and power steering
fluid pressure should conform to the following table.
Brake Fluid
Pressure
PS Fluid
Pressure
If not within specification, check the actuator.
4. CHECK ACTUATOR OPERATION
(a) Disconnect the connector from the actuator.
(b) Disconnect the connector from the solenoid relay.
(c) Connect the actuator checker (SST) to the actuator,
solenoid relay and body side wire harness through
the sub–wire harness (SST) as shown.
SST 09990–00150 and 09990–00205
(d) Connect the red cable of the checker to the battery
positive (+) terminal and black to the negative ( – )
terminal.
(e) Start the engine, and run it at idle.
(f) Turn the selector switch of actuator checker to
"REAR" position.
(g) Strongly depress the brake pedal and hold it.
(h) Push the ON/OFF switch, and check that the brake
pedal sinks a little and that it returns to the original
position when the switch is released.
NOTICE:
• To avoid damaging the master cylinder piston cup, do
not push on SST switch before depressing the brake
pedal and do not release your foot from the brake
pedal while SST switch is pushing on.
• Do not keep the ON/OFF switch pushing more than 10
seconds.
If operation is not as specified, replace the actuator.
(i) Release the switch, then release the brake pedal.
BR–89