DTC 21

DTC 21: Pulser
1. Clear the DTC.
2. Test-drive the vehicle at 19 mph (30 km/h) or more.
Does the ABS indicator come on and are DTCs 21, 22, 23, or 24 indicated?
YES - Go to step 3.
NO - The system is OK at this time.





3. Check the appropriate purser gear for a chipped tooth (see table).
Is the purser OK?
YES - Check for loose ABS control unit connectors. If necessary, substitute a known-good ABS control unit, and recheck.
NO - Replace the driveshaft or the hub unit. (Chipped pulser gear)