DTC U0140:00 [VEHICLE CONTROL MODULE]

id1502c5034700

Outline

System malfunction location

Communication error with body control module (BCM)

Detection condition

•  The vehicle control module (VCM) cannot receive CAN signal from body control module (BCM) for 5 s.

Fail-safe

(See DTC TABLE [VEHICLE CONTROL MODULE].)

Possible cause

•  Vehicle control module (VCM) malfunction (built into body control module (BCM))

•  Body control module (BCM) malfunction

System wiring diagram

Not applicable

System malfunction location	Communication error with body control module (BCM)
Detection condition	• The vehicle control module (VCM) cannot receive CAN signal from body control module (BCM) for 5 s.
Fail-safe	(See DTC TABLE [VEHICLE CONTROL MODULE].)
Possible cause	• Vehicle control module (VCM) malfunction (built into body control module (BCM)) • Body control module (BCM) malfunction
System wiring diagram	Not applicable

Diagnostic Procedure

Step

Inspection

Results

Action

1

INSPECT VEHICLE CONTROL MODULE (VCM) FOR MALFUNCTION

•  Clear the DTC recorded in the memory.
(See CLEARING DTC.)

•  Switch the ignition ON (engine off or on) and wait for 5 s or more.

•  Perform the DTC inspection for the vehicle control module (VCM).
(See DTC INSPECTION.)

•  Is the same Pending DTC present?

Yes

Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.

(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW.)

If the CAN communication is normal, replace the body control module (BCM), then go to the next step.

(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)

No

Go to the next step.

Repair completion verification

VERIFY IF OTHER DTC IS DISPLAYED

•  Perform the DTC inspection.
(See DTC INSPECTION.)

•  Are any other DTCs displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

No

DTC troubleshooting completed.

Step	Inspection	Results	Action
1	INSPECT VEHICLE CONTROL MODULE (VCM) FOR MALFUNCTION • Clear the DTC recorded in the memory. (See CLEARING DTC.) • Switch the ignition ON (engine off or on) and wait for 5 s or more. • Perform the DTC inspection for the vehicle control module (VCM). (See DTC INSPECTION.) • Is the same Pending DTC present?	Yes	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW.) If the CAN communication is normal, replace the body control module (BCM), then go to the next step. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)
1		No	Go to the next step.
Repair completion verification	VERIFY IF OTHER DTC IS DISPLAYED • Perform the DTC inspection. (See DTC INSPECTION.) • Are any other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
Repair completion verification		No	DTC troubleshooting completed.