U0342

Software Incompatibility With Hybrid/EV Battery Interface Control Module I

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–278 (est.)

Symptoms

Check Engine light comes on
Hybrid system power reduction
Limiting the operation of the electric motor
Errors in the operation of the energy recovery system
Battery charging problems

Causes

Outdated ECU software
Errors in the firmware of the battery management module
Data corruption in module memory
Incompatibility after software update
Problems with communication between modules

How to Fix

Diagnostics using a scanner for hybrid systems
Checking the relevance of the software of all modules
Flashing the battery management module
Main ECU software update
Replace the battery management module if necessary

Related codes

U0341 U0343 U0402