AutoCodes – Saturn – P0B7A Saturn

P0B7A Saturn Code - Hybrid/Electric Vehicle Battery 13 Circuit High 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: P0B7A Saturn indicates Hybrid/Electric Vehicle Battery 13 Circuit High 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 875

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0B7A 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 P0B7A Saturn - Hybrid/Electric Vehicle Battery 13 Circuit High Voltage - AutoCodes.com — P0B7A Saturn Code - Hybrid/Electric Vehicle Battery 13 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0B7A Saturn?

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

How to Fix the DTC P0B7A 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 P0B7A 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.

Need more information about the P0B7A Saturn code?

Need more information on how to fix the P0B7A Saturn code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0B7A Saturn code diagnosed by a professional: Find a repair shop in your area

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 P0B7A Saturn Code

1. What are the common symptoms of OBDII code P0B7A in a Saturn hybrid/electric vehicle?

The common symptoms of code P0B7A may include reduced hybrid system performance, decreased fuel efficiency, and the illumination of the check engine light.

2. What does the OBDII code P0B7A in a Saturn hybrid/electric vehicle indicate?

Code P0B7A signifies a high voltage condition in the 13th circuit of the hybrid/electric vehicle battery system.

3. What are the possible causes of OBDII code P0B7A in a Saturn hybrid/electric vehicle?

Possible causes of code P0B7A include a faulty high voltage battery pack, damaged wiring or connectors in the 13th circuit, or issues with the battery management system.

4. How can I diagnose OBDII code P0B7A in my Saturn hybrid/electric vehicle?

Diagnosing code P0B7A typically involves using a professional scan tool to retrieve the specific details of the fault, inspecting the high voltage battery components, and testing the wiring and connectors in the 13th circuit.

5. Can I still drive my Saturn hybrid/electric vehicle with OBDII code P0B7A?

It is not recommended to drive your vehicle with code P0B7A present, as it can lead to further damage to the high voltage system and potentially unsafe conditions. It is advised to have the issue diagnosed and repaired as soon as possible.

6. How should I repair OBDII code P0B7A in my Saturn hybrid/electric vehicle?

Repairing code P0B7A may involve replacing the faulty high voltage battery pack, repairing or replacing damaged wiring and connectors in the 13th circuit, or recalibrating the battery management system.

7. Is it safe to attempt DIY repairs for OBDII code P0B7A in a Saturn hybrid/electric vehicle?

Due to the high voltage nature of the components involved, it is recommended to seek professional help for diagnosing and repairing code P0B7A in a Saturn hybrid/electric vehicle to ensure safety and proper handling of the system.

8. How much does it typically cost to repair OBDII code P0B7A in a Saturn hybrid/electric vehicle?

The cost of repairing code P0B7A can vary depending on the extent of the damage, parts needed for replacement, and labor costs. It is advisable to obtain estimates from qualified technicians or service centers.

9. Can unresolved OBDII code P0B7A cause damage to other components in a Saturn hybrid/electric vehicle?

Continued operation with code P0B7A can potentially cause damage to other high voltage components in the vehicle, leading to more extensive and costly repairs down the line.

10. How can I prevent OBDII code P0B7A from reoccurring in my Saturn hybrid/electric vehicle?

Regular maintenance, such as checking the high voltage system, ensuring proper charging habits, and addressing any warning signs promptly, can help prevent the recurrence of code P0B7A in your Saturn hybrid/electric vehicle.