AutoCodes – GMC – P1B58 GMC

P1B58 GMC 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 GMC 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 1,023

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 GMC 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 GMC - Hybrid/Electric Vehicle Battery 39 Circuit Low Voltage - AutoCodes.com — P1B58 GMC Code - Hybrid/Electric Vehicle Battery 39 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1B58 GMC?

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

How to Fix the DTC P1B58 GMC?

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 GMC 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 P1B58 GMC Code

1. What are the common symptoms of OBDII code P1B58 GMC?

- Common symptoms of code P1B58 GMC include reduced electric vehicle range, poor battery performance, and possibly a warning light on the dashboard.

2. What does the OBDII code P1B58 GMC indicate?

- The code P1B58 GMC indicates a low voltage condition in the Hybrid/Electric Vehicle Battery 39 Circuit.

3. What are the possible causes of OBDII code P1B58 GMC?

- Possible causes of code P1B58 GMC include a faulty battery pack, damaged battery cells, poor electrical connections, or issues with the battery management system.

4. How can I diagnose the OBDII code P1B58 GMC?

- Diagnosis of code P1B58 GMC typically involves using a diagnostic scan tool to read the code, inspecting the battery connections, checking the battery voltage levels, and performing a battery health test.

5. Can I continue driving my vehicle with the OBDII code P1B58 GMC?

- It is not recommended to continue driving your vehicle with code P1B58 GMC, as it can lead to further damage to the hybrid/electric vehicle battery system.

6. How can I repair OBDII code P1B58 GMC?

- Repairing code P1B58 GMC may involve replacing damaged battery cells, repairing faulty electrical connections, resetting the battery management system, or replacing the entire battery pack if necessary.

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

- While you can attempt to clear the code using a diagnostic scan tool, it is crucial to address the underlying issue causing the low voltage condition to prevent future problems.

8. How much does it cost to repair OBDII code P1B58 GMC?

- The cost of repairing code P1B58 GMC can vary depending on the extent of the damage, the parts needed for repair, and whether you choose to perform the repairs yourself or take your vehicle to a professional mechanic.

9. Can extreme weather conditions affect OBDII code P1B58 GMC?

- Extreme weather conditions, such as extreme heat or cold, can potentially impact the performance of hybrid/electric vehicle batteries and contribute to low voltage issues triggering code P1B58 GMC.

10. How often should I have my hybrid/electric vehicle battery system checked to prevent OBDII code P1B58 GMC?

- It is recommended to have your hybrid/electric vehicle battery system checked regularly as part of routine maintenance to help prevent issues like code P1B58 GMC from occurring.