Tire Pressure System Test

The following test can be used to verify two functions. One, that the tire pressure sensors are transmitting properly and two, the EVIC module is receiving these transmissions accordingly.

1. Retrain the tire sensors. The tire sensors must be retrained in order to set the proper transmitting time cycle (once per minute), failure to retrain the sensors will cause a much slower transmitting time cycle (once an hour).
2. Using the STEP button on the overhead console, scroll to the blank display, then press the RESET button for five seconds, a beep will sound indicating the start of this test. The vehicle icon and transmission counters will now be displayed (same display as individual tire pressure except counters replace tire pressure values).
3. Upon entering the test mode, the EVIC will clear the sensor counter and each time a sensor signal for a road tire is received, the EVIC will update the counter value when vehicle is driven. Drive the vehicle at speeds more than 25 MPH (40 KM/H) for 10 minutes. The counter values should all read the same value. The test will continue until any EVIC button is pressed or until the ignition is cycled to OFF. The counters will increase by one each time a sensor signal is received by the EVIC (approximately 1 signal per minute from each wheel except the spare). If any of the road tires indicate a different value than another tire sensor, this is a sign of a problem. Replace the appropriate tire sensor and retest the system. This test will continue until any of the overhead console buttons are pressed or the ignition is turned off.