DTC 31

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. Read the tire pressure sensor transmitter battery with the HDS.

NOTE: If not defined is shown on the HDS, turn the ignition switch OFF, rotate the tire 1/4 turn, then turn the ignition switch ON (II), and try again. If there is still no response, repeat the procedure in the previous sentence until a response is shown.

Is the monitor pressure sensor transmitter battery low?
YES - Replace the 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.