OBD Guide
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U04AD

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

U04AD is an OBD-II diagnostic trouble code meaning: Invalid Data Received From Hybrid/EV Battery Interface Control Module M. Common causes: hybrid battery control module malfunction, problems with wiring harness or contacts. Estimated repair cost: $133–556.

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

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

Related codes

U04AEU04AFP0A80

Error U04AD by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the U04AD code mean?

U04AD is an OBD-II diagnostic trouble code that indicates: Invalid Data Received From Hybrid/EV Battery Interface Control Module M

What causes a U04AD error code?

The most common causes of U04AD include: Hybrid battery control module malfunction; Problems with wiring harness or contacts; Problems with the CAN bus; Module software error.

How do I fix a U04AD diagnostic trouble code?

To fix U04AD: Hybrid Battery Control Module Diagnostics. Checking the condition of the wiring harness and contacts. Scanning CAN bus error codes. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U04AD?

Do not drive — repair immediately

How much does it cost to fix U04AD?

The estimated repair cost for U04AD is $133–556. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat