System Description
When the vehicle has reached a speed of 40 km/h (25 MPH) or greater, the BCM receives a signal transmitted from the tire pressure sensors installed in each wheel. If the BCM detects low inflation pressure or a system malfunction, it sends a signal to the combination meter via CAN communication to illuminate the low tire pressure warning lamp.In addition, a warning message will be displayed in the vehicle information display. Refer to the Owner’s Manual for additional information.
The tire pressure monitoring system (TPMS) has Easy fill tire alert function to aid in tire inflation. Refer to WT- 9, "Easy Fill Tire Alert Function".
SYSTEM DIAGRAM

INPUT/OUTPUT SIGNAL
Major signal transmission between each unit via communication lines is shown in the following table.
|
Component parts |
Signal item |
| Combination meter | Mainly receives the following signals from BCM via CAN
communication.
|
| ABS actuator and electric unit (control unit) | Mainly transmits the following signals to BCM via CAN communication.
|
| TCM | Mainly transmits the following signals to BCM via CAN communication.
|
| IPDM E/R | Mainly transmits the following signals to BCM via CAN communication.
|
LOW TIRE PRESSURE WARNING LAMP INDICATION CONDITION
Uses CAN communication from the BCM to illuminate the low tire pressure warning lamp on the combination meter.
| Condition | Low tire pressure warning lamp |
| Power switch OFF |
OFF |
| Power switch ON (System normal) | Warning lamp turns on for 1second, then turns off. |
| Low tire pressure | ON |
| Configuration not performed in tire pressure monitoring system | |
| Tire pressure sensor ID not registered in BCM | |
| Tire pressure monitoring system malfunction (Other diagnostic item) | Warning lamp blinks 1 min, then turns on. |
HAZARD WARNING LAMP INDICATION CONDITION
The hazard warning lamp blinks under the following conditions.
HORN CONTROL CONDITION
During the use of easy fill tire alert function.
Easy Fill Tire Alert Function
NOTE: The easy fill tire alert function is recommended to use with the power switch ON.
NOTE: When beginning tire inflation, it takes a few seconds for the Easy fill tire alert to function. If there is no response for approximately 15 seconds or more, cancel the Easy fill tire alert function and move the vehicle approximately 1 m (3.2 ft) backward or forward to try again.

Component parts
Diagnosis system (BCM)Fusible link inspection
How To Check
A melted fusible link can be detected either by visual inspection or by
feeling with finger tip. If its condition is
questionable, use circuit tester or test lamp.
Fusible link
With stop/start system
Without stop/start system*
*: Not applicable
CAUTION:
If ...
Driver air bag module
Exploded View
Steering wheel
Driver air bag module
Removal and Installation
WARNING:
Before servicing the SRS, turn ignition switch OFF, disconnect
both battery terminals then wait at
least three minutes.
Always work from the side of driver air bag module. Do no ...
Preparation
Special Service Tool
The actual shape of the tools may differ from those illustrated here
Tool number
(TechMate No.)
Tool name
Description
KV101207S0
( — )
Unified fuel lock ring wrench
Removing and installing fuel tank lock ring
—
(J-45747)
...