Low Tire Pressure Indicator Does Not Come On, and No DTCs Are Stored

TPMS Symptom Troubleshooting - Low tire pressure indicator does not come on, and no DTCs are stored

Low tire pressure indicator does not come on, and no DTCs are stored

1. Turn the ignition switch to ON (II), and check the low tire pressure indicator for several seconds.

Did the indicator come on, and then go off?

YES -

Go to step 2.

NO -

Do the self-diagnostic function for the gauge control module Testing and Inspection. If necessary, substitute a known-good gauge control module Service and Repair, and recheck.

2. Lower the pressure in each tire until the low tire pressure indicator comes on.

Does the indicator come on when the pressure drops below: 168 kPa (1.7 kgf/cm2, 24 psi) or less?

YES -

Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting.

NO -

Go to step 3.

3. Check the TIRE PRESSURE in the TPMS DATA LIST with the HDS, and compare it with the actual measured tire pressure.

NOTE: If UNDEFINED is shown on the 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/cm2, 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 Service and Repair, and recheck.

NO -

Replace the tire pressure sensor Service and Repair.