AutoCodes – Saturn – P1E87 Saturn

P1E87 Saturn Code - Hybrid/Electric Vehicle Battery 92 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: P1E87 Saturn indicates Hybrid/Electric Vehicle Battery 92 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 840

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 24, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1E87 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 P1E87 Saturn - Hybrid/Electric Vehicle Battery 92 Circuit - AutoCodes.com — P1E87 Saturn Code - Hybrid/Electric Vehicle Battery 92 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E87 Saturn?

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

How to Fix the DTC P1E87 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 P1E87 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.

Need more information about the P1E87 Saturn code?

Need more information on how to fix the P1E87 Saturn code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1E87 Saturn 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 P1E87 Saturn Code

1. What does the OBDII code P1E87 mean on a Saturn?

P1E87 indicates an issue with the Hybrid/Electric Vehicle Battery 92 Circuit, often related to communication or performance problems in the high-voltage battery system.

2. What are the common symptoms of a P1E87 code?

Symptoms may include reduced fuel economy, decreased vehicle performance, an illuminated check engine light or hybrid system warning, and potential issues with battery charging or discharging.

3. What causes a P1E87 code to appear?

Common causes include a faulty hybrid battery cell, damaged battery wiring or connectors, a malfunctioning battery control module, or software-related issues in the vehicle's control system.

4. Can I drive my Saturn with a P1E87 code?

While the car may still be drivable, it is not recommended as it could lead to further damage to the hybrid battery system or reduced performance.

5. How is the P1E87 code diagnosed?

A technician will use a scan tool to retrieve the code, inspect the high-voltage battery system for physical damage, check wiring and connectors, and conduct tests on the battery control module.

6. What repairs are needed to fix the P1E87 code?

Repairs may include replacing a defective battery cell, repairing damaged wiring or connectors, reprogramming or replacing the battery control module, or updating the vehicleâ€™s software.

7. How much does it cost to fix a P1E87 code on a Saturn?

Repair costs vary depending on the exact issue but can range from $200 for minor wiring repairs to several thousand dollars for battery replacement or control module repairs.

8. Can a P1E87 code be cleared without repairs?

The code can be cleared temporarily with a scan tool, but if the underlying issue isn't resolved, it will reappear.

9. Is the P1E87 code unique to Saturn vehicles?

No, P1E87 may also appear on other General Motors hybrid or electric vehicles, as it relates to the general operation of the high-voltage battery circuit.

10. What preventative maintenance can help avoid a P1E87 code?

Regularly inspect the hybrid battery system for damage, keep software updated, and follow the manufacturerâ€™s recommended maintenance schedule for the hybrid or electric system.