Is there continuity?
YES -
Check for loose or poor connections. If OK, update the ACC unit See: Cruise Control/Testing and Inspection/Programming and Relearning, then
recheck. If the ACC unit was already updated, replace the ACC unit See: Cruise Control/Cruise Control Module/Service and Repair.?
NO -
Repair an open in the wire between the ACC unit and the yaw rate-lateral/longitudinal acceleration sensor.?
TPMS System
TPMS DTC Troubleshooting: 21, 22, 23, 24
DTC 21, 22, 23, 24:
Tire Pressure Sensor Abnormally High Temperature
1. Turn the ignition switch to ON (II).
2. Check the tire indicated by the DTCs you retrieved.
NOTE: An abnormal rise in the internal temperature of the tires can be caused by:
- Excessive braking
- Failure to release the parking brake (rear tires only)
- Leaving the vehicle running while parked
- Improper assembly of a wheel and tire
3. Turn the ignition switch to LOCK (0).
4. Make sure the tires have cooled down.
5. Turn the ignition switch to ON (II).
Does the TPMS indicator go off within one minute?
YES -
The system is OK at this time. Clear the DTC with the HDS.?
