AutoCodes – Saturn – P1E84 Saturn

P1E84 Saturn Code - Hybrid/Electric Vehicle Battery 89 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: P1E84 Saturn indicates Hybrid/Electric Vehicle Battery 89 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 818

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
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Code P1E84 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 P1E84 Saturn - Hybrid/Electric Vehicle Battery 89 Circuit - AutoCodes.com — P1E84 Saturn Code - Hybrid/Electric Vehicle Battery 89 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E84 Saturn?

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

How to Fix the DTC P1E84 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 P1E84 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 P1E84 Saturn Code

1. What are the common symptoms of OBDII code P1E84 in a Saturn Hybrid/Electric Vehicle?

- Common symptoms may include reduced hybrid system performance, illuminated warning lights on the dashboard, and potential issues with battery charging.

2. What can cause the OBDII code P1E84 to appear in a Saturn Hybrid/Electric Vehicle?

- The code P1E84 typically indicates a fault in the Hybrid/Electric Vehicle Battery 89 Circuit, which could be caused by damaged wiring, a faulty battery module, or issues with the battery management system.

3. How can I diagnose the OBDII code P1E84 in my Saturn Hybrid/Electric Vehicle?

- Diagnosis typically involves using an OBDII scanner to retrieve the code, inspecting the battery and related components for physical damage, and testing the circuitry for continuity and proper voltage.

4. Can I continue driving my Saturn Hybrid/Electric Vehicle with the OBDII code P1E84 present?

- It is not recommended to drive the vehicle with the code P1E84 present, as it could lead to further damage to the hybrid system and potentially unsafe driving conditions.

5. How can I repair the OBDII code P1E84 in my Saturn Hybrid/Electric Vehicle?

- Repairing the code P1E84 may involve replacing damaged wiring, repairing or replacing faulty battery modules, resetting the battery management system, or seeking assistance from a qualified technician.

6. Are there any DIY tips for troubleshooting the OBDII code P1E84 in my Saturn Hybrid/Electric Vehicle?

- DIY tips may include checking for loose connections, inspecting the battery terminals for corrosion, ensuring proper battery coolant levels, and following manufacturer-recommended maintenance procedures.

7. Is the repair for the OBDII code P1E84 covered under warranty for Saturn Hybrid/Electric Vehicles?

- The warranty coverage for repairs related to the code P1E84 may vary depending on the vehicle's age, mileage, and warranty status. It is advisable to check with the manufacturer or a certified dealership for specific warranty information.

8. Can a faulty Hybrid/Electric Vehicle Battery 89 Circuit affect the overall performance of my Saturn Hybrid/Electric Vehicle?

- Yes, a faulty Hybrid/Electric Vehicle Battery 89 Circuit can impact the overall performance of the vehicle, including the hybrid system's efficiency, battery charging capabilities, and driving range.

9. How often should I have the Hybrid/Electric Vehicle Battery 89 Circuit inspected in my Saturn Hybrid/Electric Vehicle?

- It is recommended to have the Hybrid/Electric Vehicle Battery 89 Circuit inspected during routine maintenance checks or whenever you experience symptoms related to the hybrid system or battery performance.

10. Are there any safety precautions to keep in mind when dealing with the OBDII code P1E84 in a Saturn Hybrid/Electric Vehicle?

- Safety precautions include disconnecting the battery before performing any repairs, avoiding contact with high-voltage components, and seeking professional assistance if you are unsure about handling electrical systems.