AutoCodes – Buick – P1E59 Buick

P1E59 Buick Code - Hybrid/Electric Vehicle Battery 46 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: P1E59 Buick indicates Hybrid/Electric Vehicle Battery 46 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 718

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 P1E59 Buick 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 P1E59 Buick - Hybrid/Electric Vehicle Battery 46 Circuit - AutoCodes.com — P1E59 Buick Code - Hybrid/Electric Vehicle Battery 46 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E59 Buick?

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

How to Fix the DTC P1E59 Buick?

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 P1E59 Buick 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 P1E59 Buick Code

1. What are the common symptoms of OBDII code P1E59 in a Buick Hybrid/Electric Vehicle?

- Common symptoms include poor fuel efficiency, reduced power, and potential battery charging issues.

2. What can cause the OBDII code P1E59 to trigger in a Buick Hybrid/Electric Vehicle?

- This code is typically triggered by faults in the Hybrid/Electric Vehicle Battery 46 Circuit, such as wiring issues or a faulty battery pack.

3. How can I diagnose the Hybrid/Electric Vehicle Battery 46 Circuit for OBDII code P1E59 in my Buick?

- Using a diagnostic scanner to read the code and performing a visual inspection of the battery connections and wiring can help diagnose the issue.

4. Can I still drive my Buick with the OBDII code P1E59 present?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage to the hybrid/electric system.

5. What are the repair options for fixing OBDII code P1E59 in a Buick Hybrid/Electric Vehicle?

- Repair options may include replacing damaged wiring, repairing connections, or replacing the Hybrid/Electric Vehicle Battery 46 Circuit components.

6. Could a dead or weak hybrid/electric battery cause the OBDII code P1E59 to appear in my Buick?

- Yes, a weak or failing hybrid/electric battery can contribute to the triggering of this fault code.

7. How long does it typically take to repair the Hybrid/Electric Vehicle Battery 46 Circuit for OBDII code P1E59 in a Buick?

- The repair time can vary depending on the extent of the issue, but it may take a few hours to a day to complete the repairs.

8. Is it safe to reset the OBDII code P1E59 in my Buick and continue driving without addressing the underlying issue?

- It is not recommended to reset the code without addressing the underlying problem, as it can lead to further complications with the hybrid/electric system.

9. Can a DIY enthusiast attempt to fix the OBDII code P1E59 in a Buick Hybrid/Electric Vehicle?

- While some basic troubleshooting like checking connections can be done by enthusiasts, more complex repairs may require professional assistance.

10. Are there any preventive maintenance measures I can take to avoid OBDII code P1E59 in my Buick Hybrid/Electric Vehicle?

- Regularly inspecting the hybrid/electric system, keeping the battery well-maintained, and addressing any warning signs promptly can help prevent this code from appearing.