U04AB

Invalid Data Received From Hybrid/EV Battery Interface Control Module K

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$167–889 (est.)

Symptoms

Check Engine light comes on
Hybrid system power reduction
Errors in the operation of the hybrid transmission
Reducing electric range
Error message on display

Causes

Battery management module malfunction
Problems with the CAN bus
Wiring harness damage
Module software failure
Poor contact in connectors

How to Fix

CAN bus diagnostics
Checking wiring integrity
Scanning for errors in the battery module
Reflashing the control module
Replace the battery management module if necessary
Repair only from an authorized dealer

Related codes

U04AA U04AC U04AD