Precaution
TIRE PRESSURE WARNING SYSTEMPRECAUTION
NOTE: When disconnecting the negative (-) battery terminal, initialize the following systems after the terminal is reconnected.
1. TIRE PRESSURE WARNING SYSTEM PRECAUTION
a. When the tire pressure warning lamp comes on, immediately check the tire pressure of the tire and adjust it to the specified pressure.(The tire pressure warning lamp comes on if there is an open in the tire pressure warning lamp circuit.)
NOTE: Check the spare tire as well since this system monitors pressure of all tires, including the spare.
b. When the tire pressure warning lamp blinks, there is a malfunction in the system. Check for DTCs.
c. It is necessary to register the transmitter ID in the tire pressure monitor ECU when replacing the tire pressure monitor valve sub-assy and/or tire pressure monitor ECU.
d. When replacing the tire pressure monitor ECU.
1. Using the DATA LIST, read the transmitter IDs registered in the ECU and make a note of them before removing the tire pressure monitor ECU.
2. Register the transmitter IDs after installing a new tire pressure monitor ECU.
e. When replacing the tire pressure monitor valve sub-assy.
1. Make a note of the 7 digit number (transmitter ID) written on the tire pressure monitor valve sub-assy when replacing the tire pressure monitor valve sub-assy. Register the transmitter IDs in the tire pressure monitor ECU after replacing the tire pressure monitor valve sub-assy and installing the tires and wheels on the vehicle.
NOTE: The transmitter ID is written on the tire pressure monitor valve sub-assy and ID can not be seen after installing the tire pressure monitor valve sub-assy on the tire and wheel. Therefore, make a note of the transmitter ID before installing the tire pressure monitor valve sub-assy.
2. IN CASE OF TIRE AND WHEEL REPLACEMENT
a. When tires and wheels are replaced, register the transmitter ID without fail.
3. FAIL-SAFE FUNCTION
a. When a system malfunction occurs in the tire pressure warning system, the tire pressure warning lamp blinks.
b. The result of this diagnosis is stored in the tire pressure monitor ECU.