DTC Troubleshooting: 21, 22, 23, 24

DTC 21, 22: Magnetic Encoder (front) DTC 23, 24: Pulser (rear) Clear the DTC using HDS. Disconnect the HDS from the 16P DLC. Test-drive the vehicle at 30 km/h (19 mph) or more. Does the ABS indicator come on, and are DTCs 21, 22, 23, and/or 24 indicated?
YES | - | Go to Step 4 .
NO | - | The system is OK at this time.■
1. Check the appropriate wheel sensor/encoder or pulser (see table).
   DTC | Appropriate Wheel Sensor
   --- | ---
   21 | Right-front
   22 | Left-front
   23 | Right-rear
   24 | Left-rear
Are the sensor and encoder or pulser OK?
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 magnetic encoder or pulser.■