Preinspection

INSPECTION
Before performing diagnostics, check the following items which might affect ABS problems:

BATTERY
Measure the battery voltage and specific gravity of electrolyte.
Standard voltage: 12 Volts or more
Specific gravity: Above 1.260

BRAKE FLUID
1) Check the brake fluid level.
2) Check for brake fluid leakage.

HYDRAULIC UNIT
Check the hydraulic unit.
^ With brake tester Testing and Inspection
^ Without brake tester

BRAKE DRAG
Check for brake drag.

BRAKE PAD AND ROTOR
Check brake pads and rotors.

TIRE
Check the tire specifications, tire wear and air pressure.