U0337

Software Incompatibility With Battery Charger Control Module A

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Error message on the dashboard
Battery charging problems
Incorrect operation of the power supply system
Reduced vehicle performance

Causes

Incompatible software update
Module programming error
Software corruption
Charger control module malfunction
Problems with communication between modules

How to Fix

Check software versions of all related modules
Update or reinstall charging module software
Check the integrity of the wiring harness between the modules
Diagnose the charger control module
If necessary, replace the charger control module

Related codes

U0335 U0336 U0338