AutoCodes – Saturn – P1E7B Saturn

P1E7B Saturn Code - Hybrid/Electric Vehicle Battery 80 Circuit

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: P1E7B Saturn indicates Hybrid/Electric Vehicle Battery 80 Circuit.
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 717

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 Mar 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1E7B 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 P1E7B Saturn - Hybrid/Electric Vehicle Battery 80 Circuit - AutoCodes.com — P1E7B Saturn Code - Hybrid/Electric Vehicle Battery 80 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E7B Saturn?

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

How to Fix the DTC P1E7B 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 P1E7B 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 P1E7B Saturn Code

1. What are the common symptoms of OBDII code P1E7B Saturn related to the Hybrid/Electric Vehicle Battery 80 Circuit?

- Common symptoms include decreased fuel efficiency, loss of power, and in some cases, the vehicle may not start.

2. What are the possible causes of OBDII code P1E7B Saturn indicating an issue with the Hybrid/Electric Vehicle Battery 80 Circuit?

- Potential causes may include a faulty battery pack, damaged battery cells, issues with the battery management system, or wiring/connectivity problems.

3. How can I diagnose the OBDII code P1E7B Saturn for the Hybrid/Electric Vehicle Battery 80 Circuit issue?

- Diagnosis typically involves using a diagnostic scan tool to retrieve the code, inspecting the battery pack for physical damage, checking the battery voltage levels, and testing the battery management system.

4. Is it safe to continue driving with the OBDII code P1E7B Saturn related to the Hybrid/Electric Vehicle Battery 80 Circuit?

- It is not recommended to continue driving with this code as it can lead to further damage to the hybrid/electric system and potentially cause safety hazards.

5. Can I reset the OBDII code P1E7B Saturn on my Saturn to see if it comes back?

- While you can clear the code temporarily, it is important to address the underlying issue causing the code to prevent it from reoccurring.

6. What are some repair tips for fixing the OBDII code P1E7B Saturn indicating an issue with the Hybrid/Electric Vehicle Battery 80 Circuit?

- Repair tips may include replacing the faulty battery pack or damaged battery cells, repairing wiring/connectivity issues, or recalibrating the battery management system.

7. How much does it typically cost to repair the OBDII code P1E7B Saturn related to the Hybrid/Electric Vehicle Battery 80 Circuit?

- Repair costs can vary depending on the exact cause of the issue, but it may range from a few hundred to a few thousand dollars, including parts and labor.

8. Can I perform the repair for the OBDII code P1E7B Saturn on my own, or do I need to take it to a professional mechanic?

- Due to the complexity of hybrid/electric vehicle systems, it is recommended to seek assistance from a qualified and experienced mechanic to properly diagnose and repair the issue.

9. Are there any recalls or technical service bulletins related to the OBDII code P1E7B Saturn and the Hybrid/Electric Vehicle Battery 80 Circuit?

- It is worth checking with a Saturn dealership or the manufacturer's website for any recalls or technical service bulletins related to this specific code and issue.

10. How can I prevent the OBDII code P1E7B Saturn from appearing again in the future after repairing the Hybrid/Electric Vehicle Battery 80 Circuit issue?

- Regular maintenance, monitoring the battery health, and following the manufacturer's guidelines for hybrid/electric vehicle care can help prevent the code from reoccurring.