AutoCodes – Saturn – P0B97 Saturn

P0B97 Saturn Code - Hybrid/Electric Vehicle Battery 19 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: P0B97 Saturn indicates Hybrid/Electric Vehicle Battery 19 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 943

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 P0B97 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 P0B97 Saturn - Hybrid/Electric Vehicle Battery 19 Circuit Low Voltage - AutoCodes.com — P0B97 Saturn Code - Hybrid/Electric Vehicle Battery 19 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0B97 Saturn?

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

How to Fix the DTC P0B97 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 P0B97 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 P0B97 Saturn Code

What does OBDII code P0B97 mean for a Saturn?

P0B97 indicates a "Hybrid/Electric Vehicle Battery 19 Circuit Low Voltage," meaning the vehicle's hybrid battery module or circuit 19 is detecting a voltage lower than expected.

What are common symptoms of the P0B97 code?

Symptoms may include a check engine light, reduced hybrid system performance, decreased fuel efficiency, or the vehicle entering a limp mode.

What causes the P0B97 code to trigger?

Common causes include a faulty battery module, a damaged or corroded wiring harness, a malfunctioning battery voltage sensor, or poor electrical connections.

Can I drive my Saturn with a P0B97 code?

Driving with this code is not recommended, as it can lead to further damage to the hybrid battery system and may result in reduced performance or system failure.

How can I diagnose the P0B97 code?

Diagnosis typically involves inspecting the battery module, checking the wiring and connections for corrosion or damage, and testing the voltage sensor for proper operation.

What tools are needed to troubleshoot the P0B97 code?

Youâ€™ll need an OBDII scanner capable of reading hybrid system codes, a digital multimeter, and possibly wiring diagrams specific to your Saturn model.

How is the P0B97 code fixed?

Repairs may involve replacing the affected battery module, repairing or replacing damaged wiring, cleaning corroded connections, or replacing a faulty voltage sensor.

What is the cost to repair the P0B97 code?

The repair cost can vary widely depending on the issue, ranging from $100 for minor wiring repairs to over $1,000 if the battery module needs replacement.

Can the P0B97 code clear itself?

The code is unlikely to clear itself unless the underlying issue is resolved. Even if the light disappears temporarily, the problem will likely return.

Is the P0B97 code covered under warranty?

Hybrid battery components may be covered under a manufacturerâ€™s extended warranty, so check your vehicleâ€™s warranty terms for potential coverage.