DTC 21, 22, 23, 24: Magnetic Encoder Malfunction

Turn the ignition switch to ON (II).
Clear the DTC with the HDS.
Turn the ignition switch to LOCK (0).
Test-drive the vehicle at 19 mph (30 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 6.

NO -The system is OK at this time.

Inspect the appropriate magnetic encoder for damage, debris, and correct installation.

DTC CHART

DTC	Appropriate Magnetic Encoder	Note
21	Right-front	Remove the driveshaft outboard joint from the appropriate wheel hub (see KNUCKLE/HUB/WHEEL BEARING REPLACEMENT ).
22	Left-front
23	Right-rear	Remove the hub bearing unit (see HUB BEARING UNIT REPLACEMENT ).
24	Left-rear

Is the magnetic encoder OK?

YES -Check for loose terminals in the ABS modulator-control unit 47P connector. If necessary, substitute a known-good ABS modulator-control unit (see ABS 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):

Front: Replace the front wheel bearing (seeKNUCKLE/HUB/WHEEL BEARING REPLACEMENT ).
Rear: Replace the rear hub bearing unit (seeHUB BEARING UNIT REPLACEMENT ).