DTC

C1A95:64

ABS wheel-speed sensor

DETECTION CONDITION

• ABS wheel-speed sensor or sensor rotor malfunction is detected.

FAIL-SAFE FUNCTION

• Refer to “Fail-safe function table”. (See DTC TABLE [DSC HU/CM].)

POSSIBLE CAUSE

• Tires of different diameters between front and rear wheels are installed

• ABS sensor rotor malfunction (missing sensor rotor teeth)

• Excessive clearance between ABS wheel-speed sensor and sensor rotor

• DSC HU/CM malfunction

SYSTEM WIRING DIAGRAM

—

Step

Inspection

Action

1

• Using the M-MDS, perform the PID inspection for ABS wheel-speed sensors.

  (See PID/DATA MONITOR INSPECTION [DSC HU/CM].)

• Are the monitoring values of all the wheels nearly the same when vehicle is driven?

Yes

Go to Step5.

No

Go to the next step.

2

• Inspect tire size and tire pressure.

  (See WHEEL AND TIRE SPECIFICATION.)

• Is the tire of the specified size and air pressure?

Yes

Go to the next step.

No

Replace with a specified tire or adjust the air pressure, then go to Step5.

3

• Visually inspect the ABS sensor rotors for foreign material adhering or improper installation.

• Are the ABS sensor rotors normal?

Yes

Go to the next step.

No

Replace the malfunction part, then go to Step5.

4

• Measure the clearance between ABS sensor rotors and ABS wheel-speed sensors.

  (See FRONT ABS WHEEL-SPEED SENSOR INSPECTION.)

  (See REAR ABS WHEEL-SPEED SENSOR INSPECTION.)

• Are the clearances normal?

Yes

Go to the next step.

No

Replace the malfunction part, then go to the next step.

5

• Using the M-MDS, clear the DTC from the DSC HU/CM.

  (See CLEARING DTC [DSC HU/CM].)

• Using the M-MDS, perform the DSC HU/CM DTC inspection.

  (See DTC INSPECTION [DSC HU/CM].)

• Is the same DTC present?

Yes

Repeat the inspection from Step1.

If the malfunction recurs, replace the DSC HU/CM, then go to the next step.

(See DSC HU/CM REMOVAL/INSTALLATION.)

No

Go to the next step.

6

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [DSC HU/CM].)

No

DTC troubleshooting completed.