AutoCodes – Saturn – P1E03 Saturn

P1E03 Saturn Code - Hybrid/Electric Vehicle Battery 95 Circuit High Voltage

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: P1E03 Saturn indicates Hybrid/Electric Vehicle Battery 95 Circuit High Voltage.
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 827

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 P1E03 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 P1E03 Saturn - Hybrid/Electric Vehicle Battery 95 Circuit High Voltage - AutoCodes.com — P1E03 Saturn Code - Hybrid/Electric Vehicle Battery 95 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1E03 Saturn?

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

How to Fix the DTC P1E03 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 P1E03 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 P1E03 Saturn Code

1. What are the common symptoms of OBDII code P1E03 in a Saturn Hybrid/Electric Vehicle?

- Common symptoms include the Check Engine Light (CEL) illuminating, reduced hybrid/electric vehicle performance, and potential issues with the battery system.

2. What could cause the OBDII code P1E03 in a Saturn Hybrid/Electric Vehicle?

- The code P1E03 usually indicates a high voltage condition in the Hybrid/Electric Vehicle Battery 95 circuit, commonly caused by a malfunction in the battery system or related components.

3. How can I diagnose the OBDII code P1E03 in my Saturn Hybrid/Electric Vehicle?

- Diagnosis typically involves using an OBDII scanner to retrieve the code, inspecting the battery system for any visible damage or loose connections, and testing the voltage levels in the circuit.

4. Can driving with the OBDII code P1E03 in a Saturn Hybrid/Electric Vehicle be dangerous?

- Driving with the P1E03 code may pose a risk as it can affect the performance and safety of the vehicle, especially in hybrid/electric models where the battery system plays a crucial role.

5. What are some possible repair tips for resolving the OBDII code P1E03 in a Saturn Hybrid/Electric Vehicle?

- Repair tips may include checking and securing all connections in the battery system, inspecting for any signs of damage, resetting the code, and consulting a professional mechanic for further diagnosis.

6. Is it safe to continue driving if the OBDII code P1E03 appears intermittently in my Saturn Hybrid/Electric Vehicle?

- It is not recommended to continue driving if the code appears intermittently, as it indicates an underlying issue that could worsen over time, potentially leading to more severe problems.

7. Can a DIY enthusiast fix the OBDII code P1E03 in a Saturn Hybrid/Electric Vehicle at home?

- While some basic inspections and maintenance tasks can be done at home, diagnosing and repairing the P1E03 code in a hybrid/electric vehicle often requires specialized knowledge and equipment best handled by a professional mechanic.

8. Are there any recalls related to the OBDII code P1E03 in Saturn Hybrid/Electric Vehicles?

- It is advisable to check with the manufacturer or authorized dealerships for any recalls or service bulletins related to the P1E03 code, as they may offer solutions or repairs covered under warranty.

9. What are the potential long-term consequences of ignoring the OBDII code P1E03 in a Saturn Hybrid/Electric Vehicle?

- Ignoring the P1E03 code can lead to further damage to the battery system, reduced fuel efficiency, and potential safety hazards, affecting the overall performance and longevity of the vehicle.

10. How much does it typically cost to repair the OBDII code P1E03 in a Saturn Hybrid/Electric Vehicle?

- Repair costs for the P1E03 code can vary depending on the specific underlying issue, parts needed for replacement, and labor costs, so it is advisable to obtain quotes from reputable mechanics or dealerships.