Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
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A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
U0140Lost Communication With Body Control Module
U0140Lost Communication With Body Control Module
U0140Lost Communication With Body Control Module (BCM)
Manufacturer communications
224Original wording in English
CHRYSLER
Flash: Power Sliding Door Module (PSDM) System Updates Customers **must** experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle **must** exhibit/set the following Diagnostic Trouble Code (DTC): ● U0140-00 - Lost Communication With Body Control Module. Customers may also comment on one or more of the followin…
HARLEY-DAVIDSON
SERVICE BULLETIN M1706: 2025 SOFTAIL INSTRUMENT MODULE UPDATE. PURPOSE: Initial Release. This bulletin informs dealers that there is an update available for the 2025 Softail Instrument Module (IM). This update is intended to address two symptoms: Diagnostic Trouble Code (DTC) U014000 populating with no actual fault present, RPM …
BUICK, CADILLAC, CHEVROLET, GMC
This Preliminary information communicates not to replace the Image processing Module if the following DTC's are history - U3000 SYM49, U1624, U0140, U023B SYM00, U053C, B1DD SYM57.
JEEP
Not applicable to vehicles built for US market. Multiple Systems Repair Bundle Campaign Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● U11E3-00 - TCM Lost Communication With ESM On DPT CAN. ● B15A1-00 - Med…
Check vehicle applicability
591A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.