AutoCodes – Generic – P1B58

P1B58 Code - Hybrid/Electric Vehicle Battery 39 Circuit Low Voltage

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: P1B58 indicates Hybrid/Electric Vehicle Battery 39 Circuit Low Voltage.
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 916

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 12, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1B58 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 P1B58 - Hybrid/Electric Vehicle Battery 39 Circuit Low Voltage - AutoCodes.com — P1B58 Code - Hybrid/Electric Vehicle Battery 39 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1B58?

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

How to Fix the DTC P1B58?

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 P1B58 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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Need Help with the Code?

Get the P1B58 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1B58 Buick — Hybrid/Electric Vehicle Battery 39 Circuit Low Voltage
P1B58 Cadillac — Hybrid/Electric Vehicle Battery 39 Circuit Low Voltage
P1B58 Chevrolet — Hybrid/Electric Vehicle Battery 39 Circuit Low Voltage
P1B58 GMC — Hybrid/Electric Vehicle Battery 39 Circuit Low Voltage
P1B58 Saturn — Hybrid/Electric Vehicle Battery 39 Circuit Low Voltage

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 P1B58 Code

1. What are common symptoms of OBDII code P1B58 (Hybrid/Electric Vehicle Battery 39 Circuit Low Voltage)?

- Common symptoms include a decrease in vehicle performance, reduced fuel efficiency, and potential warning lights such as the hybrid system warning light.

2. What can cause the OBDII code P1B58 to trigger?

- This code can trigger due to issues such as a weak or failing hybrid/electric vehicle battery, a faulty battery control module, or poor electrical connections within the battery system.

3. How serious is the P1B58 code related to Hybrid/Electric Vehicle Battery 39 Circuit Low Voltage?

- This code should be addressed promptly to prevent further damage to the hybrid/electric vehicle battery system and ensure optimal vehicle performance.

4. Can I continue to drive my vehicle with the P1B58 code present?

- It is not recommended to continue driving the vehicle with this code active, as it can lead to further damage to the hybrid/electric vehicle battery system.

5. What should I do if I encounter the P1B58 code?

- It is advisable to have the vehicle inspected by a qualified technician to diagnose the specific issue causing the code and perform any necessary repairs.

6. Are there any DIY repair tips for addressing the P1B58 code?

- DIY repair for this code can be challenging due to the complexity of the hybrid/electric vehicle battery system. It is best to consult a professional for accurate diagnosis and repair.

7. How can I prevent the P1B58 code from reoccurring?

- Regular maintenance of the hybrid/electric vehicle battery system, including checking connections and ensuring proper charging, can help prevent the code from reoccurring.

8. Is it safe to reset the OBDII code P1B58 on my own?

- Resetting the code without addressing the underlying issue may temporarily clear the warning light but will not fix the root cause. It is best to address the problem first before resetting the code.

9. How much does it typically cost to repair the P1B58 code?

- The cost of repairing the P1B58 code can vary depending on the specific issue causing the code, the extent of the damage, and the labor rates of the repair shop. It is recommended to get a diagnosis for an accurate cost estimate.

10. Can the P1B58 code be related to other electrical issues in the vehicle?

- Yes, the P1B58 code can be related to other electrical issues in the vehicle, especially those affecting the hybrid/electric system. It is important to address all related issues to ensure the overall health of the vehicle.