AutoCodes – Saturn – P1B6D Saturn

P1B6D Saturn Code - Hybrid/Electric Vehicle Battery 46 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: P1B6D Saturn indicates Hybrid/Electric Vehicle Battery 46 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 1,007

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 P1B6D 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 P1B6D Saturn - Hybrid/Electric Vehicle Battery 46 Circuit Low Voltage - AutoCodes.com — P1B6D Saturn Code - Hybrid/Electric Vehicle Battery 46 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1B6D Saturn?

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

How to Fix the DTC P1B6D 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 P1B6D 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 P1B6D Saturn Code

1. What are the common symptoms of OBDII code P1B6D Saturn (Hybrid/Electric Vehicle Battery 46 Circuit Low Voltage)?

- Common symptoms include poor fuel efficiency, difficulty starting the vehicle, reduced power, and the illumination of the check engine light.

2. What are the possible causes of OBDII code P1B6D Saturn (Hybrid/Electric Vehicle Battery 46 Circuit Low Voltage)?

- Possible causes include a faulty battery pack, issues with battery cell balancing, a defective battery management system, or wiring problems in the battery circuit.

3. How can I diagnose the OBDII code P1B6D Saturn (Hybrid/Electric Vehicle Battery 46 Circuit Low Voltage)?

- Diagnosis typically involves using a scan tool to read the code, checking the battery voltage levels, inspecting the battery connections, and testing the battery pack for any faults.

4. What are some repair tips for addressing OBDII code P1B6D Saturn (Hybrid/Electric Vehicle Battery 46 Circuit Low Voltage)?

- Repair tips may include resetting the battery management system, replacing faulty battery modules, ensuring proper battery pack cooling, and checking for any loose or corroded connections.

5. Can I drive my vehicle with OBDII code P1B6D Saturn (Hybrid/Electric Vehicle Battery 46 Circuit Low Voltage)?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage to the hybrid/electric system and potentially cause safety hazards.

6. How much does it typically cost to repair OBDII code P1B6D Saturn (Hybrid/Electric Vehicle Battery 46 Circuit Low Voltage)?

- The cost of repair can vary depending on the specific issue causing the code, but it may range from a few hundred to several thousand dollars, especially if battery pack replacement is needed.

7. Are there any recalls or technical service bulletins related to OBDII code P1B6D Saturn (Hybrid/Electric Vehicle Battery 46 Circuit Low Voltage)?

- It is advisable to check with a Saturn dealership or the manufacturer for any relevant recalls or technical service bulletins related to this specific OBDII code.

8. How can I prevent OBDII code P1B6D Saturn (Hybrid/Electric Vehicle Battery 46 Circuit Low Voltage) from recurring?

- Regular maintenance of the hybrid/electric vehicle system, including checking and maintaining the battery pack, monitoring battery health, and addressing any warning signs promptly, can help prevent the recurrence of this code.

9. Is it safe to attempt DIY repairs for OBDII code P1B6D Saturn (Hybrid/Electric Vehicle Battery 46 Circuit Low Voltage)?

- Due to the complexity and high voltage nature of hybrid/electric vehicle systems, it is recommended to seek professional help or consult a qualified technician for repairs related to this code.

10. Can OBDII code P1B6D Saturn (Hybrid/Electric Vehicle Battery 46 Circuit Low Voltage) cause permanent damage to the vehicle?

- Ignoring or neglecting this code can lead to further damage to the hybrid/electric system, potentially causing permanent damage to the battery pack or other components if not addressed promptly.