AutoCodes – Saturn – P1E01 Saturn

P1E01 Saturn Code - Hybrid/Electric Vehicle Battery 95 Circuit Performance

Quick Answer

The Hybrid/Electric Vehicle battery pack contains 288 cells. Common causes include Faulty Hybrid/Electric Vehicle Battery Pack, Faulty Hybrid/Electric Vehicle Battery Interface Control Module. 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: P1E01 Saturn indicates Hybrid/Electric Vehicle Battery 95 Circuit Performance.
Common causes: Common causes include Faulty Hybrid/Electric Vehicle Battery Pack, Faulty Hybrid/Electric Vehicle Battery Interface Control Module.
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.

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Code Popularity 837

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 12, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1E01 Saturn Description

The Hybrid/Electric Vehicle battery pack contains 288 cells. Groups of three cells are welded together in parallel. There are a total of 96 cell groups in the hybrid/EV battery pack assembly. These cell groups are electrically connected in-series. Each individual cell group is rated at 3.7 V, for a nominal system voltage of 355 V direct current. The battery cells are also grouped together into three sections. The first 90 cells/30 cell groups make up battery section one. This section is adjacent to the cowl and contains batteries 67 through to 96. Battery section two is located behind section one. It is made up of 72 cells/24 cell groups and contains batteries 43 through to 66. The transverse battery section is section number three, it is made up of the remaining 126 cells/42 cell groups and contains batteries 1 through to 42. The three battery sections are individually serviceable components.
The battery energy control module monitors the voltage of the 96 battery cell groups through the four hybrid/EV battery interface control modules. Voltage sense circuits are attached to each individual cell group, and these sense circuits terminate at a connector located on the top surface of the battery section. A serviceable auxiliary battery wiring harness joins this connector to a hybrid/EV battery interface control module, also located on the top surface of the battery section. The hybrid/EV battery interface control module encodes the voltage reading and transmits it to the battery energy control module through the battery control harness. There is one hybrid/EV battery interface control module located on battery sections one and two, and two hybrid/EV battery interface control modules associated with battery section three. The hybrid/EV battery interface control module, battery energy control module wiring harness, auxiliary battery wiring harness, and battery energy control module are all considered serviceable components.
The battery energy control module will determine when a fault condition is present. Diagnostics and system status are communicated from the battery energy control module to hybrid/EV powertrain control module 2 through serial data. The hybrid/EV powertrain control module 2 is the host controller for diagnostic trouble code information.

OBDII Code P1E01 Saturn - Hybrid/Electric Vehicle Battery 95 Circuit Performance - AutoCodes.com — P1E01 Saturn Code - Hybrid/Electric Vehicle Battery 95 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1E01 Saturn?

Faulty Hybrid/Electric Vehicle Battery Pack
Faulty Hybrid/Electric Vehicle Battery Interface Control Module

How to Fix the DTC P1E01 Saturn?

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 P1E01 Saturn 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.

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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 P1E01 Saturn Code

1. What are common symptoms of OBDII code P1E01 in a Saturn Hybrid/Electric Vehicle?

The common symptoms of code P1E01 include reduced hybrid system performance, lower fuel efficiency, and potential illumination of the hybrid system warning light.

2. What can cause the OBDII code P1E01 to appear in a Saturn Hybrid/Electric Vehicle?

The code P1E01 usually indicates a malfunction in the Hybrid/Electric Vehicle Battery 95 circuit, which can be caused by issues such as a faulty battery cell, wiring issues, or a problem with the battery management system.

3. How can I diagnose the OBDII code P1E01 in my Saturn Hybrid/Electric Vehicle?

Diagnosing code P1E01 typically involves using a professional OBDII scanner to retrieve the code, inspecting the hybrid battery system for any visible damage, and performing voltage tests on the battery cells.

4. Is it safe to continue driving my Saturn Hybrid/Electric Vehicle with the OBDII code P1E01 present?

It is not recommended to continue driving your vehicle with the code P1E01 active, as it can lead to further damage to the hybrid system and potentially leave you stranded on the road.

5. What are some repair tips for fixing the OBDII code P1E01 in a Saturn Hybrid/Electric Vehicle?

Repairing code P1E01 may involve replacing the faulty battery cell, repairing any damaged wiring, or recalibrating the battery management system. It is advisable to seek professional assistance for accurate diagnosis and repair.

6. Can a DIY enthusiast fix the OBDII code P1E01 in a Saturn Hybrid/Electric Vehicle?

While some basic troubleshooting steps can be performed by a DIY enthusiast, diagnosing and repairing code P1E01 in a hybrid vehicle may require specialized tools, knowledge, and expertise. It is recommended to consult a qualified technician for proper diagnosis and repair.

7. How much does it cost to repair the OBDII code P1E01 in a Saturn Hybrid/Electric Vehicle?

The cost of repairing code P1E01 can vary depending on the extent of the issue, the parts needed for repair, and the labor rates of the repair facility. It is best to obtain a detailed estimate from a trusted mechanic.

8. Can a low hybrid battery state of charge trigger the OBDII code P1E01 in a Saturn Hybrid/Electric Vehicle?

Yes, a low state of charge in the hybrid battery can potentially trigger the code P1E01, as it may indicate an imbalance or malfunction within the battery cells or management system.

9. Is resetting the OBDII system an effective way to clear the P1E01 code in a Saturn Hybrid/Electric Vehicle?

While resetting the OBDII system may temporarily clear the code P1E01, it is crucial to address the underlying issue causing the code to prevent it from reoccurring. Simply resetting the system without proper diagnosis and repair may lead to more significant problems.

10. Are there any recalls or technical service bulletins related to the OBDII code P1E01 in Saturn Hybrid/Electric Vehicles?

It is recommended to check with the manufacturer or authorized service centers for any recalls or technical service bulletins related to the OBDII code P1E01 in Saturn Hybrid/Electric Vehicles, as there may be specific guidance or remedies provided by the manufacturer.