AutoCodes – Generic – P1B97

P1B97 Code - Hybrid/Electric Vehicle Battery 60 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: P1B97 indicates Hybrid/Electric Vehicle Battery 60 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 1,794

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 P1B97 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 P1B97 - Hybrid/Electric Vehicle Battery 60 Circuit Low Voltage - AutoCodes.com — P1B97 Code - Hybrid/Electric Vehicle Battery 60 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1B97?

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

How to Fix the DTC P1B97?

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 P1B97 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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Need Help with the Code?

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Information for Specific Makes

P1B97 Buick — Hybrid/Electric Vehicle Battery 60 Circuit Low Voltage
P1B97 Cadillac — Hybrid/Electric Vehicle Battery 60 Circuit Low Voltage
P1B97 Chevrolet — Hybrid/Electric Vehicle Battery 60 Circuit Low Voltage
P1B97 GMC — Hybrid/Electric Vehicle Battery 60 Circuit Low Voltage
P1B97 Saturn — Hybrid/Electric Vehicle Battery 60 Circuit Low Voltage

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 P1B97 Code

1. What are the common symptoms of OBDII code P1B97 (Hybrid/Electric Vehicle Battery 60 Circuit Low Voltage)?

- Common symptoms include the hybrid/electric vehicle's battery not charging properly, decreased fuel efficiency, and warning lights on the dashboard.

2. What are some possible causes of OBDII code P1B97?

- Possible causes may include a faulty battery pack, issues with the battery management system, damaged wiring or connectors, or a software glitch.

3. How serious is OBDII code P1B97?

- This code can be serious as it indicates a problem with the high voltage battery system in a hybrid/electric vehicle. It is important to address this issue promptly to avoid further damage.

4. How can I diagnose OBDII code P1B97?

- Diagnosis typically involves using a scan tool to read the code, checking the battery voltage levels, inspecting the wiring and connectors for damage, and performing a battery system test.

5. Can I continue driving with OBDII code P1B97 present?

- It is not recommended to continue driving with this code present, as it can lead to further damage to the vehicle's battery system and potentially pose a safety risk.

6. What are some repair tips for fixing OBDII code P1B97?

- Repair tips may include checking and repairing any damaged wiring or connectors, replacing faulty battery components, resetting the battery system, or updating the vehicle's software.

7. How much does it typically cost to repair OBDII code P1B97?

- The cost of repairs for this code can vary depending on the underlying issue. It is recommended to consult a professional technician for an accurate diagnosis and cost estimate.

8. Can OBDII code P1B97 be reset without fixing the underlying issue?

- While you can clear the code temporarily, it is important to address the underlying issue causing the code to prevent it from reoccurring and potentially causing further damage.

9. Is it safe to attempt DIY repairs for OBDII code P1B97?

- Repairs for this code can be complex and involve high voltage systems, so it is recommended to seek professional help unless you have the necessary expertise and safety precautions.

10. How often does OBDII code P1B97 occur in hybrid/electric vehicles?

- OBDII code P1B97 can occur in hybrid/electric vehicles, especially as they age or if there are issues with the battery system. Regular maintenance and monitoring can help prevent this code from appearing.