DTC 18

DTC 12, 14, 16, 18: Wheel Sensor (Electrical Noise/Intermittent Interruption)

NOTE: If the ABS indicator comes on because of electrical noise, the indicator goes off when you test-drive the vehicle at 19 mph (30 km/h) and the system returns to normal.

1. Clear the DTC using the HDS.
2. Turn the ignition switch OFF.
3. Disconnect the HDS from the 16P DLC.
4. Test-drive the vehicle.

Does the ABS indicator come on?

YES - Go to step 5.

NO - The system is OK at this time. Refer to intermittent failures.

5. Check the appropriate wheel sensor and magnetic encoder.





Are they OK?

YES - Go to step 6.

NO - Clean and reinstall, or replace the appropriate wheel sensor or magnetic encoder.

6. Disconnect the VSA modulator-control unit 47P connector.
7. Check for continuity between the appropriate wheel sensor +B terminal and other wheel sensor +B terminals (see table).





Is there continuity?

YES - Repair short in the wire between the appropriate wheel sensor and the other wheel sensor.

NO - Go to step 8.

8. Substitute a known-good wheel sensor for the appropriate wheel sensor.





9. Clear the DTC using the HDS.
10. Turn the ignition switch OFF.
11. Disconnect the HDS from the 16P DLC.
12. Test-drive the vehicle.

Does the ABS indicator come on?

YES - Check for loose terminals in the VSA modulator-control unit 47P connector. If necessary, substitute a known-good VSA modulator-control unit, and recheck.

NO - Replace the wheel sensor.