AutoCodesGeneric – P1EA1

P1EA1 Code - Hybrid/EV Battery Interface Control Module 4 Random Access Memory Performance

Quick Answer

The Hybrid/EV Battery Interface Control Module 4 will diagnose its own systems and determine when a fault condition is present. Common causes include Faulty Hybrid/EV Battery Interface Control Module 4, Hybrid/EV Battery Interface Control Module 4 harness is open or shorted, Hybrid/EV Battery Interface Control Module 4 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1EA1 indicates Hybrid/EV Battery Interface Control Module 4 Random Access Memory Performance.
Common causes
Common causes include Faulty Hybrid/EV Battery Interface Control Module 4, Hybrid/EV Battery Interface Control Module 4 harness is open or shorted, Hybrid/EV Battery Interface Control Module 4 circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 794
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 24, 2020
💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1EA1 Description

The Hybrid/EV Battery Interface Control Module 4 will diagnose its own systems and determine when a fault condition is present. This diagnostic applies to internal microprocessor integrity conditions within the Hybrid/EV Battery Interface Control Module 4. This fault is internal to the Hybrid/EV Battery Interface Control Module 4 and no external circuits are involved.
OBDII Code P1EA1 - Hybrid/EV Battery Interface Control Module 4 Random Access Memory Performance - AutoCodes.com
P1EA1 Code - Hybrid/EV Battery Interface Control Module 4 Random Access Memory Performance

What are the Possible Causes of the DTC P1EA1?

  • Faulty Hybrid/EV Battery Interface Control Module 4
  • Hybrid/EV Battery Interface Control Module 4 harness is open or shorted
  • Hybrid/EV Battery Interface Control Module 4 circuit poor electrical connection

How to Fix the DTC P1EA1?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1EA1 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1EA1 code?

Need more information on how to fix the P1EA1 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1EA1 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • P1EA1 Buick — Hybrid/EV Battery Interface Control Module 4 Random Access Memory Performance
  • P1EA1 Cadillac — Hybrid/EV Battery Interface Control Module 4 Random Access Memory Performance
  • P1EA1 Chevrolet — Hybrid/EV Battery Interface Control Module 4 Random Access Memory Performance
  • P1EA1 GMC — Hybrid/EV Battery Interface Control Module 4 Random Access Memory Performance
  • P1EA1 Saturn — Hybrid/EV Battery Interface Control Module 4 Random Access Memory Performance
About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1EA1 Code

1. What does the OBDII code P1EA1 mean?

The P1EA1 code indicates a performance issue with the Hybrid/EV Battery Interface Control Module 4's Random Access Memory (RAM), which could affect communication or data processing.

2. What are the common symptoms of code P1EA1?

Symptoms may include the illumination of the check engine light, reduced hybrid/EV performance, limited battery charging or discharging, or the vehicle entering limp mode.

3. What causes the P1EA1 code to appear?

Common causes include a faulty Hybrid/EV Battery Interface Control Module, RAM corruption, software glitches, or wiring and connection issues related to the module.

4. Can I continue driving with the P1EA1 code?

Driving is possible but not recommended, as the vehicle may experience reduced performance or efficiency and could lead to further damage to hybrid/EV components.

5. How is the P1EA1 code diagnosed?

A technician will use a scan tool to confirm the code, inspect the module’s wiring and connections for damage, and test the module’s functionality via specialized diagnostic equipment.

6. What repairs are needed to fix the P1EA1 code?

Repairs may include reprogramming or replacing the Hybrid/EV Battery Interface Control Module, repairing damaged wiring, or updating the vehicle’s software.

7. Can a dead 12V battery cause the P1EA1 code?

A weak or dead 12V battery can sometimes trigger this code if it disrupts the module’s operation, but this is not the most common cause.

8. How much does it cost to fix the P1EA1 code?

Repair costs vary but may range from $300 to $1,500 depending on whether the module needs reprogramming, repair, or replacement.

9. Is the P1EA1 code specific to certain vehicle models?

Yes, the P1EA1 code is typically found in hybrid and EV models from manufacturers like General Motors and may not apply to all vehicles.

10. Can software updates resolve the P1EA1 code?

In some cases, a software update from the manufacturer can resolve the issue if it is caused by outdated programming or known system bugs.

Discuss the causes and fixes for P1EA1 OBDII Code

Code P1EA1 comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play