AutoCodes – Cadillac – P1B6F Cadillac

P1B6F Cadillac Code - Hybrid/Electric Vehicle Battery 47 Circuit Performance

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: P1B6F Cadillac indicates Hybrid/Electric Vehicle Battery 47 Circuit Performance.
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 748

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 P1B6F Cadillac 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 P1B6F Cadillac - Hybrid/Electric Vehicle Battery 47 Circuit Performance - AutoCodes.com — P1B6F Cadillac Code - Hybrid/Electric Vehicle Battery 47 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1B6F Cadillac?

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

How to Fix the DTC P1B6F Cadillac?

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 P1B6F Cadillac 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 P1B6F Cadillac Code

1. What are the common symptoms of OBDII code P1B6F in a Cadillac hybrid/electric vehicle?

- Common symptoms include reduced fuel efficiency, reduced power output, and potential issues with the hybrid/electric system.

2. What can cause the OBDII code P1B6F to be triggered in a Cadillac hybrid/electric vehicle?

- This code is typically triggered by issues with the hybrid/electric vehicle battery 47 circuit, such as poor connections, high resistance, or a malfunctioning battery cell.

3. How can I diagnose the OBDII code P1B6F in my Cadillac hybrid/electric vehicle?

- Diagnosing this code usually involves using a diagnostic scanner to retrieve the code, inspecting the battery 47 circuit connections, and testing the battery cells for proper voltage and resistance.

4. Can driving with the OBDII code P1B6F present cause further damage to my Cadillac hybrid/electric vehicle?

- Continuing to drive with this code present can potentially cause damage to the hybrid/electric system and may lead to further performance issues or battery failure.

5. What are some repair tips for resolving the OBDII code P1B6F in a Cadillac hybrid/electric vehicle?

- Repair tips may include checking and cleaning the battery 47 circuit connections, testing and potentially replacing faulty battery cells, and ensuring proper battery cooling and ventilation.

6. Is it possible to reset the OBDII code P1B6F in a Cadillac hybrid/electric vehicle without addressing the underlying issue?

- While you can clear the code with a diagnostic scanner, it is not recommended to do so without addressing the root cause, as the issue may persist and lead to further problems.

7. How much does it typically cost to repair the OBDII code P1B6F in a Cadillac hybrid/electric vehicle?

- The cost of repair can vary depending on the extent of the issue, but it may involve costs for diagnosis, parts replacement, and labor, potentially ranging from a few hundred to over a thousand dollars.

8. Can I fix the OBDII code P1B6F in my Cadillac hybrid/electric vehicle myself, or should I seek professional help?

- While some DIY enthusiasts may be able to diagnose and address simple issues related to this code, more complex problems may require professional expertise to ensure proper repair and maintenance.

9. How long can I safely drive my Cadillac with the OBDII code P1B6F before getting it repaired?

- It is recommended to address the issue promptly to avoid potential damage to the hybrid/electric system. Continuing to drive with this code present may lead to performance issues or battery failure.

10. Are there any preventive maintenance tips to help avoid triggering the OBDII code P1B6F in my Cadillac hybrid/electric vehicle?

- Regularly inspecting the hybrid/electric system components, keeping the battery well-maintained, and following the manufacturer's maintenance schedule can help prevent issues that may trigger this code.