U04AD

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

Severity

🚨 Critical

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$133–556 (est.)

Symptoms

Check Engine Light Is On
Hybrid system power reduction
Reducing electric range
Incorrect battery level display
The car goes into emergency mode

Causes

Hybrid battery control module malfunction
Problems with wiring harness or contacts
Problems with the CAN bus
Module software error
Corroded or damaged connectors

How to Fix

Hybrid Battery Control Module Diagnostics
Checking the condition of the wiring harness and contacts
Scanning CAN bus error codes
Module software update
Repair or replace damaged components
Repair only from an authorized dealer

Related codes

U04AE U04AF P0A80