AutoCodes – Saturn – P1B58 Saturn

P1B58 Saturn 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 Saturn 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 954

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

What does this mean?

What are the Possible Causes of the DTC P1B58 Saturn?

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

How to Fix the DTC P1B58 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 P1B58 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 P1B58 Saturn Code

1. What are the common symptoms of OBDII code P1B58 in a Saturn Hybrid/Electric Vehicle?

- Common symptoms include poor fuel economy, reduced vehicle performance, and potential issues with the hybrid/electric system.

2. What can cause the Hybrid/Electric Vehicle Battery 39 Circuit Low Voltage code in a Saturn?

- The code P1B58 can be triggered by a weak or failing hybrid/electric vehicle battery, issues with the battery cooling system, or a fault in the battery management system.

3. How can I diagnose the cause of the low voltage circuit issue in my Saturn hybrid/electric vehicle?

- Diagnosing the P1B58 code may require specialized diagnostic equipment to check the battery voltage levels, inspect the battery connections, and conduct tests on the battery cooling system.

4. Is it safe to continue driving my Saturn with the P1B58 code present?

- It is not recommended to continue driving your Saturn with the P1B58 code as it can lead to further damage to the hybrid/electric system and potentially leave you stranded.

5. Can I reset the OBDII code P1B58 in my Saturn without fixing the underlying issue?

- While you can clear the code using an OBDII scanner, it is crucial to address the root cause of the low voltage circuit problem to prevent future issues.

6. How much does it typically cost to repair the Hybrid/Electric Vehicle Battery 39 Circuit Low Voltage issue in a Saturn?

- The cost of repairs for the P1B58 code can vary depending on the exact cause of the problem, but it may involve battery repairs, replacements, or system diagnostics by a qualified technician.

7. Are there any preventive maintenance steps I can take to avoid triggering the P1B58 code in my Saturn?

- Regularly inspecting the hybrid/electric vehicle battery, keeping it properly charged, and following the manufacturer's maintenance recommendations can help prevent the occurrence of the low voltage circuit issue.

8. Can a DIY enthusiast fix the Hybrid/Electric Vehicle Battery 39 Circuit Low Voltage problem in a Saturn?

- Due to the complexity of hybrid/electric vehicle systems, it is recommended to seek assistance from a professional mechanic or dealership specializing in hybrid vehicles to diagnose and repair the P1B58 code.

9. Will the P1B58 code cause my Saturn to fail an emissions test?

- Yes, the presence of the OBDII code P1B58 can cause your Saturn to fail an emissions test, as it indicates a problem with the hybrid/electric system that can impact emissions control.

10. How long does it typically take to repair the Hybrid/Electric Vehicle Battery 39 Circuit Low Voltage issue in a Saturn?

- The repair time for the P1B58 code can vary based on the extent of the issue and the availability of parts, but it may range from a few hours to a full day of work, depending on the complexity of the repair needed.