U0141 code meaning
Lost Communication With Body Control Module A
Network system Generic code U01xx codes Check engine light
What U0141 means
U0141 names the first of several body controllers. Unlike U0140, which stands for the single main BCM, the letter suits cars that spread body tasks over more units, and each maker decides which one is A. Mitsubishi uses U0141 for an ETACS timeout: its body controller ETACS-ECU stops sending, and keyless entry, liftgate, airbag, brake and steering units log the loss; bulletin TSB-19-42B-003 revised the procedure for Outlander, Lancer and Outlander Sport up to 2019. FCA labels the module IPM (BCM) or, in older airbag lists, the front control or totally integrated power module; on the 2021 Chrysler 300 a PCM flash cures a MIL that comes with it. On the 2023-24 Audi e-tron the gateway stores U014100 when the ignition will not switch on, cured by a software update of the comfort control unit J393.
U0141 at a glance
- Check engine lightYes, usually on
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.5 to 4 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U0141
- Keyless entry, liftgate or other body functions inoperative
- Ignition cannot be switched on (Audi e-tron case)
- MIL or several warning lamps on
- Code stored in many modules at once
Common causes of U0141
- Most likelyPower, fuse or ground of body module A missing
- PossibleSoftware of module A or of the listener needs updating (Audi J393, FCA PCM)
- PossibleBus wire or connector to module A damaged or loose
- Less likelyBody module A internally faulty
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Body control moduleCAN bus wiring
What each part of U0141 means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 41 | The exact fault in that area. |
What to do next
- Note U0141 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about U0141
What does U0141 mean?
U0141 means "Lost Communication With Body Control Module A". U0141 names the first of several body controllers. It is a generic code, so it means the same on every make.
Is it safe to drive with U0141?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will U0141 fail an emissions test?
U0141 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is U0141 to fix?
Difficulty: medium. A typical repair takes 0.5 to 4 hours of work. This is a job for a workshop.
Will U0141 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.