DTC 21
DTC 21, 22, 23, 24: Pulser1. Turn the ignition switch ON (II).
2. Clear the DTC using the HDS.
3. Test-drive the vehicle at 19 mph (30 km/h) 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.
4. Check the appropriate wheel sensor (see table).
Is the sensor OK?
YES - Check for loose terminals in the VSA modulator-control unit 47P connector. If necessary, substitute a known-good VSA modulator-control unit, and retest.
NO - Replace the pulser.