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.
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 ModuleU0140Lost Communication With Body Control ModuleU0140Lost Communication With Body Control Module (BCM)U0140Lost Communication With Body Control ModuleView all · Manufacturer wording →
Manufacturer communications
224Original wording in English
CHRYSLER
Reported code forms U0140-00
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): ●…
HARLEY-DAVIDSON
Reported code forms U014000
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…
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms U0140
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
Reported code forms U0140-00
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…
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms U0140
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
Reported code forms U0140
Symptoms/Condition: Shifter reports loss communication AND NO OTHER MODULES report the condition. Diagnostic: Please make sure ONLY shifter reports loss communication. If there are other modules reporting loss…
Check vehicle applicability
591A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Audi | A3 | 2023 |
| Audi | A3 | 2022 |
| Audi | A4 | 2023 |
| Audi | A4 | 2022 |
| Audi | A4 | 2021 |
| Audi | A4 | 2020 |
| Audi | A4 | 2019 |
| Audi | A4 ALLROAD | 2022 |
| Audi | A4 ALLROAD | 2021 |
| Audi | A4 ALLROAD | 2020 |
| Audi | A5 | 2023 |
| Audi | A5 | 2022 |
Historical records · 1 · Historical vehicle association; OBD-II compatibility is not established by this record.
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.
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.