U0412 on CHRYSLER PACIFICA — Invalid Data Received From Battery Energy Control Module A

Q: "What does U0412 mean on a CHRYSLER PACIFICA?"

"U0412 indicates: Invalid Data Received From Battery Energy Control Module A. This is a network communication code. 8 CHRYSLER PACIFICA owners have reported this to NHTSA."

Q: "What are the most common causes of U0412 on CHRYSLER PACIFICA?"

"Based on 8 NHTSA reports, the most commonly cited components are: Electrical System, Power Train,Electrical System, Electrical System,Service Brakes,Forward Collision Avoidance. These percentages are based on the component field in owner complaints."

Q: "Is U0412 serious on my CHRYSLER PACIFICA?"

"Of 8 NHTSA reports for this code on CHRYSLER PACIFICA, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic."

Q: "What should I do if my CHRYSLER PACIFICA shows U0412?"

"1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare."

What U0412 Means on Your CHRYSLER PACIFICA

U0412 is a diagnostic trouble code indicating: Invalid Data Received From Battery Energy Control Module A. This code relates to the network communication system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

8 CHRYSLER PACIFICA owners have reported this issue to NHTSA across model years 2017-2019. Most reports come from the 2018, 2019 model years. The most commonly reported component is Electrical System (62.5% of reports).

Real CHRYSLER PACIFICA Owner Reports

Source: NHTSA Complaints Database

"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."

— 2017 CHRYSLER PACIFICA owner · POWER TRAIN,ELECTRICAL SYSTEM · Filed 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."

— 2018 CHRYSLER PACIFICA owner · ELECTRICAL SYSTEM · Filed 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."

— 2018 CHRYSLER PACIFICA owner · ELECTRICAL SYSTEM · Filed 01/10/2025

"After safety recall 73B was performed on my 2018 Chrysler Pacifica Hybrid on 02/03/2025, the vehicle's check engine light illuminated and it began experiencing charging failures. The component that has failed is the high-voltage (HV) battery pack and its control system."

— 2018 CHRYSLER PACIFICA owner · ELECTRICAL SYSTEM · Filed 02/03/2025

"The hybrid battery system is malfunctioning. I am not at risk. I am repeatedly getting U0412 error code, indicating a problem with voltage in the hybrid battery system. It only happens intermittedly."

— 2018 CHRYSLER PACIFICA owner · ELECTRICAL SYSTEM · Filed 07/16/2025

All reports filed by vehicle owners directly with the U.S. Department of Transportation.

📊 Complaint Trend by Model Year

1

'17

5

'18

2

'19

Common Causes on CHRYSLER PACIFICA

Based on NHTSA complaint component analysis for this vehicle.

ELECTRICAL SYSTEM 62.5%

POWER TRAIN,ELECTRICAL SYSTEM 12.5%

ELECTRICAL SYSTEM,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE 12.5%

UNKNOWN or OTHER,ENGINE 12.5%

What To Do Next

1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.

Frequently Asked Questions

What does U0412 mean on a CHRYSLER PACIFICA? ▾

U0412 indicates: Invalid Data Received From Battery Energy Control Module A. This is a network communication code. 8 CHRYSLER PACIFICA owners have reported this to NHTSA.

What are the most common causes of U0412 on CHRYSLER PACIFICA? ▾

Based on 8 NHTSA reports, the most commonly cited components are: Electrical System, Power Train,Electrical System, Electrical System,Service Brakes,Forward Collision Avoidance. These percentages are based on the component field in owner complaints.

Is U0412 serious on my CHRYSLER PACIFICA? ▾

Of 8 NHTSA reports for this code on CHRYSLER PACIFICA, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic.

What should I do if my CHRYSLER PACIFICA shows U0412? ▾

1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare.

U0412 on Other Vehicles

→ All codes reported on CHRYSLER PACIFICA