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)B0021 side curtain air bag module IH
DTC Logic
DTC DETECTION LOGIC
CONSULT name
DTC
DTC detecting condition
Repair order
CURTAIN AIRBAG MODULE LH CIRCUIT
[OPEN]
B0021
LH side curtain air bag module circuit
is open.
Refer to SRC-55, "Diagnosis Procedure".
CURTA ...
C1604 torque sensor
DTC Logic
DTC DETECTION LOGIC
DTC
Display item
Malfunction detected condition
Possible cause
C1604
TORQUE SENSOR
When torque sensor output signal is malfunctioning.
Harness or connector
Torque sensor
EPS control unit
...
Door sash molding
Exploded View
Front door sash molding
Rear door rear sash molding
Front door panel
Rear door panel
Roof rail side outer
Body side outer
Rear door weather strip
Rear door glass
Removal and Installation
FRONT DOOR
Removal
Remove door mirror. Refer to MIR-22, &q ...