ABS System

ABS DTC Troubleshooting: 12, 14, 16, 18

DTC 12:

Right-Front Wheel Speed Sensor Signal Malfunction

DTC 14:

Left-Front Wheel Speed Sensor Signal Malfunction

DTC 16:

Right-Rear Wheel Speed Sensor Signal Malfunction

DTC 18:

Left-Rear Wheel Speed Sensor Signal Malfunction

NOTE: If the ABS indicator came on because of electrical noise, the indicator will goes off when you test-drive the vehicle at 9 mph (15 km/h) after the system returns to normal.

1. Turn the ignition switch to LOCK (0).

2. Check that the appropriate wheel speed sensor is properly mounted Wheel Speed Sensor Replacement (ABS).





Is the wheel speed sensor installation OK?

YES -

Go to step 3.

NO -

Reinstall the wheel speed sensor, and check the mounting position Wheel Speed Sensor Replacement (ABS).�

3. Inspect the appropriate magnetic encoder for damage, debris, and correct installation.





Is the magnetic encoder OK?

YES -

Go to step 4.

NO -

Remove the debris from the magnetic encoder, or replace the wheel bearing (front) or the hub bearing unit (rear):

- Front: Replace the front wheel bearing Service and Repair.�
- Rear: Replace the rear hub bearing unit Rear Hub Bearing Unit Replacement.�

4. Disconnect the ABS modulator-control unit 47P connector Service and Repair.

5. Check for continuity between the appropriate wheel speed sensor GND terminal and the other wheel speed sensor GND terminals of the ABS modulator-control unit 47P connector (see table).










Is there continuity?

YES -

Repair a short in the wires between the appropriate wheel speed sensor and the other wheel speed sensor.�

NO -

Go to step 6.

6. Substitute a known-good wheel speed sensor Wheel Speed Sensor Replacement (ABS).

7. Reconnect all connectors.

8. Turn the ignition switch to ON (II).

9. Clear the DTC with the HDS.

10. Turn the ignition switch to LOCK (0).

11. Test-drive the vehicle at 19 mph (30 km/h) or more.

NOTE: Drive the vehicle on the road, not on a lift.

12. Check for DTCs with the HDS.

Is DTC 12, 14, 16, or 18 indicated?

YES -

Check for loose terminals in the ABS modulator-control unit 47P connector. If necessary, substitute a known-good ABS modulator-control unit, and retest.�

NO -

Replace the original wheel speed sensor Wheel Speed Sensor Replacement (ABS).�