This diagnostic trouble code indicates a software version mismatch between the powertrain control module and the Battery Energy Control Module B. It suggests the modules cannot communicate properly due to incompatible calibration data or programming. This issue is frequently observed in hybrid or electric vehicles after component replacement or incomplete software updates.
A replaced battery control module was installed without proper vehicle-specific calibration or software flashing.
Weak auxiliary battery or charging faults disrupt network communication stability between control modules.
Internal processor or memory failure within the Battery Energy Control Module B prevents proper handshake.
Open or shorted circuits in the communication network wiring inhibit data transfer between modules.
Existing module firmware is incompatible with recent updates installed on other networked controllers.
The powertrain control module lacks correct configuration data, though hardware replacement is rarely required.
No, this code indicates a software mismatch with the battery module, not a hardware failure of the engine computer.
Clearing the code will not fix the underlying software incompatibility and the light will likely return.
No, the vehicle may enter a fail-safe mode, lose power, or fail to restart after shutting off.
No, suggesting PCM replacement for this code is usually incorrect as the fault lies with the battery module software or configuration.