DTC Troubleshooting: 12, 14, 16, 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 30 km/h (19 mph).

1. Check the appropriate wheel sensor and magnetic encoder or pulser.

   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 or pulser.■

1. Disconnect the VSA control unit 47P connector.

1. 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. 18 | No. 4 | No. 5 | No. 2
   14 | FL +B: No. 4 | No. 18 | No. 5 | No. 2
   16 | RR +B: No. 5 | No. 18 | No. 4 | No. 2
   18 | RL +B: No. 2 | No. 18 | No. 4 | No. 5

Is there continuity?

YES | - | Check for loose terminals in the VSA control unit 47P connector. If necessary, substitute a known-good VSA modulator-control unit , and recheck.■
NO | - | Go to Step 4 .

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

   DTC | Appropriate Encoder or Pulser
   --- | ---
   12 | Right-front
   14 | Left-front
   16 | Right-rear
   18 | Left-rear

1. Clear the DTC using the HDS.

1. Disconnect the HDS from the 16P DLC.

1. Turn the ignition switch OFF, then turn it ON (II) again.

1. Test-drive the vehicle.

Does the ABS indicator come on?

YES | - | Check for loose terminals in the VSA control unit 47P connector. If necessary, substitute a known-good VSA modulator-control unit , and recheck.■
NO | - | Replace the original wheel sensor. ■