Diagnosis Procedure
1.INSPECT BCM CONNECTOR
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace damaged parts.
2.BCM POWER SUPPLY AND GROUND CIRCUITS
Check BCM power supply and ground circuits. Refer to WT "WITH INTELLIGENT KEY : Diagnosis Procedure" or WT "WITHOUT INTELLIGENT KEY : Diagnosis Procedure".
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS "Removal and Installation" or BCS "Removal and Installation".
NO >> Repair BCM circuits.
Low tire pressure warning lamp
does not turn onDiagnosis Procedure NOTE: The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II User Guide for additional information. Activate and dis ...

Diagnosis Procedure NOTE: If low tire pressure warning lamp repeats blinking ON for 2 seconds and OFF for 0.2 seconds, wake-up operation for all transmitters is not complete. Carry out transmitt ...
Control panel buttons - color screen with Navigation System (if so equipped)
WARNING
Positioning of the heating or air conditioning
controls and display controls
should not be done while driving in order
that full attention may be given to
the driving operation.
Do not disassemble or modify this system.
If you do, it may result in accidents,
fire, or elec ...
U0140 Lost communication (BCM)
DTC Logic
DTC DETECTION LOGIC
DTC
Trouble diagnosis name
DTC detection condition
Possible causes
U0140
Lost Communication With Body
Control Module
When the ignition switch is ON,
TCM is unable to receive the
CAN communications signal
from BCM continuously ...