DTC Troubleshooting: 12, 14, 16, 18

1. 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 drive the vehicle over 30 km/h (19 mph) and the noise is gone. Check the appropriate wheel sensor and magnetic encoder.
   DTC | Appropriate Wheel Sensor
   --- | ---
   12 | Right-front
   14 | Left-front
   16 | Right-rear
   18 | Left-rear
Are they OK?
YES | - | Go to Step 2 .
NO | - | Clean and reinstall or replace the appropriate wheel sensor or magnetic encoder.■
1. Disconnect the ABS control unit 25P connector. Check for continuity between the appropriate wheel sensor +B terminal and other wheel sensor +B terminals (see table).
   DTC | Appropriate Terminal | Other Terminals
   --- | --- | ---
   12 | FR +B: No. 2 | No. 12 | No. 6 | No.14
   14 | FL +B: No. 12 | No. 2 | No. 6 | No. 14
   16 | RR +B: No. 6 | No. 2 | No. 12 | No. 14
   18 | RL +B: No. 14 | No. 2 | No. 12 | No. 6
Is there continuity?
YES | - | Repair short in the wire between the appropriate wheel sensor and the other wheel sensor.■
NO | - | Go to Step 4 .
1. Substitute a known-good wheel sensor for the appropriate wheel sensor.
   DTC | Appropriate Wheel Sensor
   --- | ---
   12 | Right-front
   14 | Left-front
   16 | Right-rear
   18 | Left-rear
Clear the DTC using the HDS. Disconnect the HDS from 16P DLC. Turn the ignition switch OFF, then turn it ON (II) again. Test-drive the vehicle. Does the ABS indicator come on?
YES | - | Check for loose terminals in the ABS control unit 25P connector. If necessary, substitute a known-good ABS modulator-control unit, and recheck.■
NO | - | Replace the original wheel sensor. ■