AutoCodes – Saturn – P0B7C Saturn

P0B7C Saturn Code - Hybrid/Electric Vehicle Battery 14 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: P0B7C Saturn indicates Hybrid/Electric Vehicle Battery 14 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 835

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 08, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0B7C 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 P0B7C Saturn - Hybrid/Electric Vehicle Battery 14 Circuit - AutoCodes.com — P0B7C Saturn Code - Hybrid/Electric Vehicle Battery 14 Circuit

What does this mean?

What are the Possible Causes of the DTC P0B7C Saturn?

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

How to Fix the DTC P0B7C 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 P0B7C 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 P0B7C Saturn Code

1. What does the OBDII code P0B7C on a Saturn Hybrid/Electric Vehicle indicate?

This code indicates a fault with the Hybrid/Electric Vehicle Battery 14 Circuit.

2. What are common symptoms of the P0B7C code in a Saturn Hybrid/Electric Vehicle?

Common symptoms include reduced hybrid system performance, decreased fuel efficiency, and potential difficulty starting the vehicle.

3. What are possible causes of the P0B7C code in a Saturn Hybrid/Electric Vehicle?

Possible causes include damaged wiring or connectors related to the Hybrid/Electric Vehicle Battery 14 Circuit, a faulty battery pack, or issues with the battery management system.

4. How can I diagnose the P0B7C code in my Saturn Hybrid/Electric Vehicle?

Diagnosing this code typically involves using a diagnostic scanner to retrieve the specific details of the fault, as well as inspecting the battery connections and related wiring for any visible damage.

5. Can I continue driving my Saturn Hybrid/Electric Vehicle with the P0B7C code present?

It is not recommended to continue driving the vehicle with this code present, as it can lead to further damage to the hybrid system components.

6. How can I repair the P0B7C code in my Saturn Hybrid/Electric Vehicle?

Repairing this code may involve repairing or replacing damaged wiring, connectors, or the battery pack itself. It is recommended to consult a qualified technician for proper repair.

7. Are there any DIY tips for addressing the P0B7C code in a Saturn Hybrid/Electric Vehicle?

While some basic inspections can be done, such as checking for loose connections or visible damage, advanced repairs for this code are best left to professionals with experience in hybrid/electric vehicle systems.

8. How much does it typically cost to repair the P0B7C code in a Saturn Hybrid/Electric Vehicle?

The cost of repairing this code can vary depending on the specific issue causing it, but it may involve several hundred to a few thousand dollars for parts and labor.

9. Is the P0B7C code a common issue in Saturn Hybrid/Electric Vehicles?

While not extremely common, issues related to the Hybrid/Electric Vehicle Battery 14 Circuit can occur in Saturn Hybrid/Electric Vehicles, especially as they age or if maintenance is neglected.

10. Can I prevent the recurrence of the P0B7C code in my Saturn Hybrid/Electric Vehicle?

Regular maintenance, including checking the battery connections and monitoring hybrid system performance, can help prevent the recurrence of the P0B7C code in your Saturn Hybrid/Electric Vehicle.