General Description

General Description

CAUTION

SUPPLEMENTAL RESTRAINT SYSTEM "AIRBAG"
Airbag system wiring harness is routed near the ABS wheel speed sensor and ABSCM&H/U.

CAUTION:
- Do not use electrical test equipment on wiring harness and connector circuits of the airbag system.
- Be careful not to damage the airbag system wiring harness when servicing the ABS wheel speed sensor and ABSCM&H/U.

INSPECTION
Before performing diagnosis, check the following item which might affect ABS problems.

BATTERY
Measure the battery voltage and check electrolyte.
Standard voltage:
12 V or more
Specific gravity:
1.260 or more

GROUND
Check the tightening torque of ground (GB-5) bolt of ABS.
Tightening torque:
13 Nm (1.3 kgf-m, 9.6 ft-lb)

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

HYDRAULIC UNIT
Check the hydraulic unit.
- When using the brake tester Ref. to CHECKING THE HYDRAULIC UNIT ABS OPERATION WITH THE BRAKE TESTER.
- When not using the brake tester Ref. to CHECKING THE HYDRAULIC UNIT ABS OPERATION BY PRESSURE GAUGE.

BRAKE DRAG
Check for brake drag.

BRAKE PAD AND ROTOR
Check the brake pad and rotor.

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