Diagnosis Procedure

VDC function, TCS function, ABS function, EBD function or brake assist function operates in excessive operation frequency.

1. CHECK BRAKE FORCE 

   Check brake force using a brake tester.

   Is the inspection result normal?

   YES

   GO TO 2 .

   NO

   Check brake system.

2. CHECK FRONT AND REAR AXLE 

   Check that there is no excessive looseness in front and rear axle.

   Refer to Inspection (front) or Inspection (rear).

   Is the inspection result normal?

   YES

   GO TO 3 .

   NO

   Repair or replace error-detected parts.

3. CHECK WHEEL SENSOR 

   Check wheel sensor.

   • Check installation and damage of wheel sensor.
   • Check connection of wheel sensor harness connector.
   • Check terminal of wheel sensor harness connector.

   Is the inspection result normal?

   YES

   GO TO 4 .

   NO

   Repair installation or replace wheel sensor.

   • Front wheel sensor: Refer to Removal and Installation .
   • Rear wheel sensor: Refer to Removal and Installation .
4. CHECK SENSOR ROTOR 

   Check that there is no looseness, damage or foreign material on sensor rotor.

   Is the inspection result normal?

   YES

   GO TO 5 .

   NO

   Repair installation or replace sensor rotor.

   • Front sensor rotor: Refer to Removal and Installation - Front Sensor Rotor .
   • Rear sensor rotor: Refer to Removal and Installation - Rear Sensor Rotor .
5. CHECK THAT WARNING LAMP TURNS OFF 

   Check that ABS warning lamp, brake warning lamp and VDC warning lamp turn OFF approximately 1 second after key switch is turned ON and stay in OFF status during driving.

   CAUTION: Brake warning lamp turns ON when parking brake is operated (parking brake switch is ON) or brake fluid is less than the specified level (brake fluid level switch is ON).

   Is the inspection result normal?

   YES

   Inspection End.

   NO

   GO TO 6 .

6. PERFORM THE SELF DIAGNOSTIC RESULT 

   CONSULT

   1. Turn the ignition switch OFF → ON.
      CAUTION:

      • Be sure to wait 10 seconds after turning ignition switch OFF or ON.
      • Set the vehicle to READY/Start the engine.
   2. Repeat step 1 two or more times.
   3. Select "Self Diagnostic Result" mode of "ABS".

   Is any DTC detected?

   YES

   Check the DTC. Refer to DTC Index .

   NO

   Inspection End.