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 Module (attempting to clear thisU0140Lost Communication With Body Control ModuleU0140LOST COMMUNICATION WITH BODY CONTROL MODULE (ATTEMPTING TO CLEAR THISU0140Lost Communication With Body Control Module (attempting to clear this · Transmission torque management enhancement when shifting from drive to reverseView all · Manufacturer wording →
Manufacturer communications
13Original wording in English
RAM
Reported code forms U0140-00
Radio Loss Of Communication To Body Control Module (BCM) Diagnostic trouble Code (DTC) U0140-00
RAM
Reported code forms U0140
Flash: Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp…
DODGE, RAM
Reported code forms U0140
Flash: Powertrain Diagnostic And System Enhancements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of customers may experience a…
RAM
Reported code forms U0140
Flash: Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. The following powertrain system improvements/enhancements…
RAM
Reported code forms U0140
Flash: Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. The following powertrain system improvements/enhancements…
RAM
Reported code forms U0140
"FLASH: POWERTRAIN DIAGNOSTIC AND SYSTEM ENHANCEMENTS THIS BULLETIN INVOLVES REPROGRAMMING THE POWERTRAIN CONTROL MODULE (PCM) WITH THE LATEST AVAILABLE SOFTWARE. THE FOLLOWING POWERTRAIN SYSTEM…
Check vehicle applicability
5A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Historical vehicle association; OBD-II compatibility is not established by this record.
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.