DTC 21, 22, 23, 24: Magnetic Encoder

Turn the ignition switch to ON (II).
Clear the DTC with the HDS.
Test-drive the vehicle at 10 mph (15 km/h) or more.
NOTE: Drive the vehicle on the road, not on a lift.
Check for DTCs with the HDS.
Is DTC 21,22,23, or 24 indicated?

YES - Go to step 5.

NO - The system is OK at this time.

Inspect the appropriate magnetic encoder for damage, debris, and correct installation (see table):

DTC MAGNETIC ENCODER REFERENCE CHART

DTC	Appropriate Magnetic Encoder
21	Right-front
22	Left-front
23	Right-rear
24	Left-rear

Is the magnetic encoder OK?

YES - Check for loose terminals in the VSA modulator-control unit 47P connector. If necessary, substitute a known-good VSA modulator-control unit (see VSA Modulator-Control Unit Removal and Installation ), and retest.

NO - Remove the debris from the magnetic encoder, or replace the wheel bearing (front) or the hub bearing unit (rear):

Replace the front wheel bearing (see KNUCKLE/HUB/WHEEL BEARING REPLACEMENT ).
Rear: Remove the appropriate hub bearing unit (see HUB BEARING UNIT REPLACEMENT ).