Low tire pressure indicator does not come on, and no DTCs are stored
- Turn the ignition switch to ON (II).
- Check the low pressure indicator for several seconds when the ignition switch is turned to ON (II).
Did the indicator come on and then go off?
YES -Go to step 3.
NO -Do the troubleshooting for the gauge control module (see SELF-DIAGNOSTIC FUNCTION ). If necessary, substitute a known-good gauge control module (see GAUGE CONTROL MODULE REPLACEMENT ), and recheck.
- Lower the pressure in any tire until the low tire pressure indicator comes on.NOTE:
- If 5 minutes has passed since the ignition switch has been turned to ON (II), turn the ignition switch to LOCK (0) and wait 2 minutes, then turn back ON (II) again.
- Reinflate the tire before continuing to the next tire.
- After noting whether the low tire pressure indicator came on, make sure it goes off when you reinflate the tire before proceeding to the next tire.
Does the indicator come on when the pressure drops below 175 kPa (1.8 kgf/cm 2 , 25 psi) or less?
YES -The system is OK at this time.
NO -Go to step 4.
- Check the TIRE PRESSURE in the TPMS DATA LIST with the HDS, and compare with measured actual tire pressure.NOTE: If UNDEFINED is shown on the for sensor transmitter status, turn the ignition switch to LOCK (0), rotate the appropriate tire 1/4 turn, then turn the ignition switch to ON (II), and try again. If UNDEFINED is still displayed, repeat this procedure until NORMAL is shown.
Is the indicated tire pressure on the HDS within 40 kPa (0.4 kgf/cm 2 , 6 psi) of the actual tire pressure?
YES -Check for loose terminals and poor connections at the TPMS control unit. If necessary, substitute a known-good TPMS control unit (see TPMS CONTROL UNIT REPLACEMENT ), and recheck.
NO -Replace the tire pressure sensor (see TIRE PRESSURE SENSOR REPLACEMENT ).