TPMS Control Unit

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), or press the engine start/stop button to select the ON mode.

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), or press the engine start/stop button to select the OFF mode.

4. Make sure the tires have cooled down.

5. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

Does the TPMS indicator go off within one minute?

YES -

Intermittent failure, the system is OK at this time.

NO -

Go to step 6.

6. Check the RF, LF, RR, or LR TIRE PRESSURE SENSOR TEMPERATURE in the TPMS DATA LIST with the HDS.

NOTE: If UNDEFINED is shown on the sensor transmitter status, turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode, rotate the tire 1/4 turn, then turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode, and try again. If UNDEFINED is still displayed, repeat this procedure until NORMAL is shown.

Is 176 °F (80 °C) or more indicated?

YES -

Replace the appropriate tire pressure sensor Service and Repair.

NO -

Check for loose terminals and poor connections at the TPMS control unit. If necessary, substitute a known-good TPMS control unit Service and Repair, and recheck.