Hybspec

U0140

Średni

Lost Communication with BCM (Body Control Module)

OBD-II (EN): Lost Communication With Body Control Module

Code U0140 — Lost Communication with BCM (Body Control Module). Symptoms: body electrical faults. Possible cause: CAN bus damage near BCM. Professional diagnosis recommended.

Symptoms

Body electrical faults, locks, lights, windows may not work

Possible causes

CAN bus damage near BCM, faulty BCM, connector corrosion

Affected systems

Related codes

Does code U0140 require professional diagnostics?

The code alone is not enough. To find the cause, you need to read live data, check freeze frame conditions, and compare with vehicle behavior. Book a diagnostic session.