U0344

Software Incompatibility With Hybrid/EV Battery Interface Control Module K

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

~$167 (est.)

Symptoms

Check Engine light comes on
Reduced performance of the hybrid system
Vehicle power limitation
Inability to charge the battery
Incorrect battery level display

Causes

Outdated control module software
Errors when updating software
Software version mismatch
Damage to module software
Problems with communication between modules

How to Fix

Diagnostics using a scanner to determine the exact cause
Updating the Battery Management Module Software
Reflashing the main control unit
Checking the integrity of the wiring harness between modules
Repair only from an authorized dealer

Related codes

U0343 U0345 U0401