AutoCodes – Chevrolet – P1E89 Chevrolet

P1E89 Chevrolet Code - Hybrid/Electric Vehicle Battery 94 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: P1E89 Chevrolet indicates Hybrid/Electric Vehicle Battery 94 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 985

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 P1E89 Chevrolet 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 P1E89 Chevrolet - Hybrid/Electric Vehicle Battery 94 Circuit - AutoCodes.com — P1E89 Chevrolet Code - Hybrid/Electric Vehicle Battery 94 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E89 Chevrolet?

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

How to Fix the DTC P1E89 Chevrolet?

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 P1E89 Chevrolet 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 P1E89 Chevrolet Code

1. What are the common symptoms of OBDII code P1E89 in a Chevrolet hybrid/electric vehicle?

- Common symptoms include reduced hybrid/electric vehicle performance, decreased fuel efficiency, and potential issues with the high voltage battery system.

2. What are the possible causes of OBDII code P1E89 in a Chevrolet hybrid/electric vehicle?

- Possible causes include faulty battery pack components, damaged wiring or connectors, software issues, or problems with the battery management system.

3. How can I diagnose OBDII code P1E89 in my Chevrolet hybrid/electric vehicle?

- Diagnosis typically involves using a diagnostic scan tool to retrieve the trouble codes, inspecting the high voltage battery system for visible damage, and performing voltage and resistance tests on various components.

4. Is it safe to drive my Chevrolet hybrid/electric vehicle with OBDII code P1E89 present?

- It is not recommended to drive the vehicle with this code active, as it can lead to further damage to the high voltage battery system and potentially compromise safety.

5. How can I repair OBDII code P1E89 in my Chevrolet hybrid/electric vehicle?

- Repair options may include replacing damaged battery components, repairing wiring or connectors, updating software, or recalibrating the battery management system.

6. Can I reset OBDII code P1E89 in my Chevrolet hybrid/electric vehicle using a scan tool?

- Resetting the code with a scan tool may temporarily clear the fault code, but it is crucial to address the underlying issue causing the code to prevent it from reoccurring.

7. How much does it typically cost to repair OBDII code P1E89 in a Chevrolet hybrid/electric vehicle?

- Repair costs can vary depending on the extent of the damage and the specific components that need to be replaced, but it is recommended to consult with a professional technician for an accurate estimate.

8. Will OBDII code P1E89 cause my Chevrolet hybrid/electric vehicle to fail an emissions test?

- Yes, this code can cause the vehicle to fail an emissions test as it indicates a fault in the high voltage battery system, which can affect the overall performance and emissions output of the vehicle.

9. Can a DIY enthusiast repair OBDII code P1E89 in a Chevrolet hybrid/electric vehicle?

- While some basic diagnosis and repairs may be possible for experienced DIY enthusiasts, dealing with high voltage systems and complex components typically requires specialized training and tools best handled by professionals.

10. How can I prevent OBDII code P1E89 from appearing in my Chevrolet hybrid/electric vehicle?

- Regular maintenance, such as checking the battery system, ensuring proper charging habits, and addressing any warning signs promptly, can help prevent the occurrence of this code.