Engine-Codes.com
Engine-Codes – Buick – P1E94 Buick

P1E94 Buick Code - Hybrid/EV Battery Interface Control Module 2 Performance

Quick Answer

The P1E94 diagnostic trouble code for Buick vehicles refers to an issue with the Hybrid/EV Battery Interface Control Module 2 (HVICM2) performance. Common causes include Faulty HVICM2 module, Wiring or connection issues, Battery pack issues. 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
P1E94 Buick indicates Hybrid/EV Battery Interface Control Module 2 Performance.
Common causes
Common causes include Faulty HVICM2 module, Wiring or connection issues, Battery pack issues.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 13, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
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

Code P1E94 Buick Description

The P1E94 diagnostic trouble code for Buick vehicles refers to an issue with the Hybrid/EV Battery Interface Control Module 2 (HVICM2) performance. This module plays a crucial role in managing the interaction between the hybrid or electric battery system and the vehicle's other components. When this code is triggered, it indicates that the control module is not functioning as intended, potentially leading to various performance issues.

OBDII Code P1E94 Buick - Hybrid/EV Battery Interface Control Module 2 Performance
P1E94 Buick Code - Hybrid/EV Battery Interface Control Module 2 Performance

Common Causes of P1E94 Buick

  1. Faulty HVICM2 module
  2. Wiring or connection issues
  3. Battery pack issues
  4. Software glitches or programming errors
  5. Environmental factors such as extreme temperatures affecting battery performance

Symptoms of P1E94 Buick

  1. Reduced fuel efficiency
  2. Loss of power or acceleration
  3. Illumination of the check engine light
  4. Inability to switch between hybrid and electric modes
  5. Erratic behavior of the hybrid system

How to Fix P1E94 Buick

  1. Diagnose the specific cause of the P1E94 code using a diagnostic scanner.
  2. Inspect the HVICM2 module for any visible damage or signs of malfunction.
  3. Check the wiring and connections related to the battery interface control module.
  4. Perform a software update or reprogramming if necessary.
  5. Test the system to ensure proper functionality after repairs are completed.

Cost to Fix P1E94 Buick

The typical repair costs for addressing the P1E94 code can vary depending on the specific cause of the issue. In general, repairs related to the HVICM2 module or wiring may range from $200 to $500, including parts and labor. However, it is essential to consider that diagnosis time and labor rates at auto repair shops can fluctuate based on various factors. It is advisable to consult with a qualified technician or service center to obtain a more accurate estimate based on your vehicle's make and model.

Need more information about the P1E94 Buick code?

Need more information on how to fix the P1E94 Buick code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1E94 Buick code diagnosed by a professional: Find a repair shop in your area

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 P1E94 Buick Code

1. What does the OBDII code P1E94 mean for a Buick?

P1E94 indicates a performance issue with the Hybrid/EV Battery Interface Control Module 2, meaning it’s not functioning as expected in managing battery operations.

2. What are the common symptoms of code P1E94 in a Buick?

Symptoms may include reduced fuel efficiency, limited EV mode functionality, a hybrid system warning light, or the vehicle entering limp mode.

3. What causes the P1E94 code to trigger?

Common causes include faulty wiring or connectors, a malfunctioning Hybrid/EV Battery Interface Control Module 2, software glitches, or issues within the vehicle’s high-voltage battery system.

4. Can I drive my Buick with a P1E94 code?

While the vehicle may still be drivable, it’s not recommended as it could lead to further damage to the hybrid or EV system. Immediate diagnosis is advised.

5. How is the P1E94 code diagnosed?

A technician will use a scan tool to confirm the code, inspect wiring and connectors, test the control module, and check for additional related trouble codes.

6. What repairs are needed to fix the P1E94 code?

Repairs may include replacing the Hybrid/EV Battery Interface Control Module 2, fixing damaged wiring or connectors, or updating the vehicle’s software.

7. How much does it cost to fix a P1E94 code on a Buick?

Repair costs vary but can range from $200 to $1,500 depending on whether the issue is wiring-related or requires module replacement.

8. Can a P1E94 code be caused by a dead 12V battery?

While unlikely, a weak or dead 12V battery can sometimes trigger hybrid system faults, so it’s worth testing the 12V system as part of the diagnosis.

9. Does a P1E94 code always mean the battery needs replacement?

No, this code typically points to a performance issue with the control module rather than the battery itself, though the battery should still be inspected.

10. Can software updates resolve a P1E94 code?

Yes, in some cases, a software update for the hybrid control system may resolve the issue without the need for hardware replacement.

Discuss the causes and fixes for P1E94 Buick OBDII Code

Submit a New Comment

Code P1E94 Buick comments

No comments found for this page.