Suzuki GRAND VITARA XL-7 Owner's Manual page 155

5E2-30 ANTILOCK BRAKE SYSTEM (ABS)
9) Perform following checks with help of another person.
10) Brake pedal (1) should be depressed.
a) Ignition switch turned to ON position by one person.
b) Wheel should be turned by another person's hand. At this
time, check that:
• Operation sound of solenoid is heard and wheel turns only
about 0.5 sec. (brake force is depressurized).
• Operation sound of pump motor is heard and pulsation is felt
at brake pedal.
11) If all 4-wheels cannot be checked during one ignition cycle
(OFF → ON), repeat Steps 8) and 9) till all 4 wheels are
checked.
If a faulty condition is found in Steps 9) and 10), replace
hydraulic unit/control module assembly.
Turn ignition switch to OFF position and remove service wire from
diagnosis connector.