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U0412: Invalid Data Received From Battery Energy Control Module A

Severity
Low
NHTSA Reports
8
Vehicles Affected
1
System
Powertrain

What Does U0412 Mean?

U0412 is a diagnostic trouble code indicating: Invalid Data Received From Battery Energy Control Module A. This code relates to the network communication system. It has been reported in NHTSA complaints across 1 different vehicle models.

Symptoms of U0412

Common Causes

Real Owner Reports

From NHTSA complaint database — actual owner descriptions.

"I had the recall for 73B performed in mid October to my 2017 EV/Hybrid Pacifica- 2017 and only 67K miles. No issues before. Since the recall service I’ve brought it in twice with the same problems stating Hybrid Battery needs conditioning/service. I suspect it’s the recall update that has caused all"

— Chrysler Pacifica owner, 10/13/2025

"After safety recall 73B was performed on my 2018 Chrysler Pacifica Hybrid on 11/24/25, the vehicle's check engine light illuminated. Code U0412 is identified as a 'stored' code upon pulling OBD information. This is described as "Invalid Data Received From Battery Energy Control Module 'A'" indicati"

— Chrysler Pacifica owner, 11/24/2025

"The battery of my hybrid electric minivan was damaged during a recent factory recall, and Chrysler is refusing to correct the problem. Instead, they’re trying to charge me for a new battery. Here’s the background. I recently received a recall notice (73B) for my 2018 Chrysler Pacifica hybrid miniva"

— Chrysler Pacifica owner, 01/10/2025

Source: NHTSA Complaints Database

Most Reported Vehicles for U0412

Based on NHTSA owner complaint data.

# Vehicle Reports
1 CHRYSLER PACIFICA

U0412 Reports by Vehicle

Detailed NHTSA complaint analysis for each vehicle model.

Frequently Asked Questions

Can I drive with this code?
It depends on the severity. If the vehicle runs normally, short trips are usually OK. If you notice performance issues, drivability problems, or warning lights beyond the check engine light, get it checked soon.
Will this code clear itself?
Some codes clear automatically after the underlying issue is fixed and several drive cycles pass. But the root cause must be addressed first.
How do I find the exact cause?
A code alone doesn't pinpoint the failed part. You need a diagnostic scan ($50-150 at most shops) that reads freeze frame data and live sensor readings to identify the specific component.

What To Do Next

Possible Fixes

  • 🔧 Have the code scanned with a professional-grade scanner to read freeze frame data
  • 🔧 Test the relevant sensor(s) with a multimeter before replacing
  • 🔧 If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)
  1. 1
    Find your vehicle above

    Click your make and model for real owner reports and common causes specific to your vehicle.

  2. 2
    Check for recalls

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.

  3. 3
    Get a professional diagnosis

    A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

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