Tire Sensors
The EVIC can be trained to recognize the source locations of pressure sensor/transmitter signals. Use the following training procedure:
- Locate RETRAIN TIRE SENSORS on the EVIC menu. See Fig 1 .
- Press STEP button to select YES and MENU button to confirm. When this mode is enabled by selecting YES the EVIC will initiate the training procedure.
- The EVIC display will prompt the user to: TRAIN LEFT FRONT TIRE. At this point the user must set the left front tire sensor to learn mode by positioning a magnet (Relearn Magnet 8821) over the valve stem for at least 5 seconds. See Fig 2
. The Remote Tire Pressure Monitor (RTPM) in the front left tire will transmit a message indicating to the EVIC that it is in learn mode. When the EVIC has received this message and is assured that it has learned an ID, the EVIC will request a horn chirp via a bus message and then display the next train request.NOTE: There is a 60-second timer for learning the first tire location and a 30-second timer between the remaining tires. If any of these timers expire, the EVIC will abort the training procedure.
- The EVIC will request the initiation of a training sequence for each tire, one-by-one in a clockwise direction around the vehicle (Left Front, Right Front, Right Rear, Left Rear, and Spare). The EVIC will allow 30 seconds (60 seconds for the first tire) from the beginning of the train request display to the receipt of a unique learn ID message from the RTPM. If, during a training session, a 60 or 30 second timer expires before a unique learn sensor ID is received or the vehicle is not in park, the EVIC will keep the previous set of trained IDs and will display TRAINING ABORTED until a button is pressed. Any IDs learned during the current session will be discarded. The EVIC will not store one ID for multiple locations.
- Once all five tires are successfully trained, the previous set of stored IDs will be replaced by the new IDs, and the EVIC will display TRAINING COMPLETE until a button is pressed. If the vehicle is equipped with the HomeLink(R) feature and a HomeLink(R) button is pressed at any time during the training procedure, the EVIC module will immediately exit the training procedure, discard any IDs learned in the current session and perform the HomeLink(R) function. After the button is released, the module will display "RETRAIN TIRE SENSORS? NO". The training procedure can be stopped at any time by pressing the C/T, STEP, RESET or MENU button. When any of these buttons are pressed the EVIC will display TRAINING ABORTED until another button is pressed.
Once training is complete, the EVIC can determine when the spare wheel has been mounted on the vehicle. The spare wheel sensor/transmitter is expected to transmit once per hour. If the sensor/transmitter ID for the spare wheel is received at a shorter interval, the EVIC will request a chime and display SPARE SWAP DETECTED for five seconds.