OBD Guide

U04A5

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

U04A5 is an OBD-II diagnostic trouble code meaning: Invalid Data Received From Hybrid/EV Battery Interface Control Module E. Common causes: problems with battery module wiring or connectors, battery interface control module malfunction. Estimated repair cost: $167โ€“889.

Severity
๐Ÿ”ด High
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$167โ€“889 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced power or transition to emergency mode
  • Inability to charge high voltage battery
  • An error message appears on the display
  • Increased fuel consumption for hybrids

Causes

  • Problems with battery module wiring or connectors
  • Battery Interface Control Module Malfunction
  • Software errors in the control system
  • Damage to the high voltage battery
  • Problems with the hybrid system CAN bus

How to Fix

  1. Check the integrity of the wiring and module connectors
  2. Read complete error codes from all modules
  3. Update module software
  4. Check the condition of the high-voltage battery
  5. Repair only from an authorized dealer

Related codes

Error U04A5 by Vehicle Brand

FAQ

What does the U04A5 code mean?

U04A5 is an OBD-II diagnostic trouble code that indicates: Invalid Data Received From Hybrid/EV Battery Interface Control Module E

What causes a U04A5 error code?

The most common causes of U04A5 include: Problems with battery module wiring or connectors; Battery Interface Control Module Malfunction; Software errors in the control system; Damage to the high voltage battery.

How do I fix a U04A5 diagnostic trouble code?

To fix U04A5: Check the integrity of the wiring and module connectors. Read complete error codes from all modules. Update module software. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U04A5?

Yes, but get it checked soon

How much does it cost to fix U04A5?

The estimated repair cost for U04A5 is $167โ€“889. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version ยท NationStat