DTC 33

DTC 31, 33, 35, 37: Tire Pressure Sensor Low Battery Voltage

NOTE: This problem occurs when the temperature around the sensor is -40 °F (-40 °C) or less. Note that the diagnosis must be made in a place where ambient temperature is -4 °F (-20 °C) or more.

1. Turn the ignition switch 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.

NO - Go to step 2.

2. Check the FR, FL, RR, or RL in the TPMS DATA LIST with the HDS.

NOTE: If the HDS screen shows not defined for sensor status, turn the ignition switch OFF, rotate the tire 1/4 turn, then turn the ignition switch ON (II), and try again. If not defined is still shown, repeat the procedure in the previous sentence until NORMAL is shown.





Is LOW indicated?

YES - Replace the appropriate tire pressure sensor.

NO - Check for loose terminals and poor connections at the TPMS control unit. If necessary, substitute a known-good TPMS control unit, and recheck.