U059A

Invalid Data Received From DC/DC Converter Control Module B

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–278 (est.)

Symptoms

Check Engine light comes on
Problems charging a 12-volt battery
Electrical malfunctions
Reduced performance of the hybrid system
Errors in other vehicle systems

Causes

DC/DC module B fault
Problems with the wiring harness or connectors
Short circuit in communication circuit
Module power supply circuit open
Software error in the module

How to Fix

Check the integrity of the wiring harness and connectors
Check the supply voltage and module ground
Scan the module for additional errors
Flash or replace DC/DC B module if necessary
Check the operation of the system after repair

Related codes

U0598 U0599 U059B