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 ...
Door lock operation warning does
not operate
Diagnosis Procedure
1.CHECK DOOR LOCK FUNCTION
Check door lock function.
Does door lock/unlock using door request switch?
YES >> GO TO 2.
NO >> Refer to DLK "Diagnosis Procedure".
2.CHECK INTELLIGENT KEY WARNING BUZZER
Check Intelligent Key warning buzzer.
Refer to ...