U04A8

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

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$167–556 (est.)

Symptoms

Check Engine Light Is On
Reduced vehicle power
Problems charging the hybrid battery
Incorrect charge level display
The car goes into emergency mode

Causes

Hybrid Battery Control Module Malfunction
Damage to wiring or connectors
Software problems
Short circuit in the circuit
Module power problems

How to Fix

Check connections and wiring integrity
Scan the module for additional errors
Update module software
Check power supply and grounding of the module
Replace the hybrid battery control module if necessary

Related codes

U04A7 U04A9 U04AA