AutoCodes – Cadillac – P1B1F Cadillac

P1B1F Cadillac Code - Hybrid/Electric Vehicle Battery 30 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: P1B1F Cadillac indicates Hybrid/Electric Vehicle Battery 30 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 1,005

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 P1B1F 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 P1B1F Cadillac - Hybrid/Electric Vehicle Battery 30 Circuit Performance - AutoCodes.com — P1B1F Cadillac Code - Hybrid/Electric Vehicle Battery 30 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1B1F Cadillac?

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

How to Fix the DTC P1B1F 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 P1B1F 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 P1B1F Cadillac Code

1. What are the common symptoms of OBDII code P1B1F in a Cadillac Hybrid/Electric Vehicle?

The common symptoms include reduced battery performance, decreased fuel efficiency, and potential difficulty starting the vehicle.

2. What can cause the OBDII code P1B1F to trigger in a Cadillac Hybrid/Electric Vehicle?

The code may be triggered due to issues with the hybrid/electric vehicle battery 30 circuit, such as a faulty battery pack, damaged wiring, or a malfunctioning battery management system.

3. How can I diagnose the OBDII code P1B1F in my Cadillac Hybrid/Electric Vehicle?

Diagnosis typically involves using a scan tool to read the code, inspecting the battery connections and wiring, and performing tests on the battery and related components.

4. Is it safe to continue driving my Cadillac with the OBDII code P1B1F present?

It is not recommended to continue driving the vehicle with this code present, as it can lead to further damage to the hybrid/electric vehicle system and potentially result in a complete loss of power.

5. Can I repair the OBDII code P1B1F issue in my Cadillac Hybrid/Electric Vehicle myself?

Repairing this code often requires specialized knowledge and tools, so it is recommended to seek assistance from a qualified technician or dealership familiar with hybrid/electric vehicle systems.

6. How much does it typically cost to repair the OBDII code P1B1F in a Cadillac Hybrid/Electric Vehicle?

The cost of repair can vary depending on the specific cause of the issue, but it may involve replacing components, repairing wiring, or recalibrating the battery management system, which can range from a few hundred to a few thousand dollars.

7. Are there any preventive maintenance tips to avoid encountering the OBDII code P1B1F in my Cadillac Hybrid/Electric Vehicle?

Regularly inspecting the hybrid/electric vehicle battery system, following the manufacturer's maintenance schedule, and avoiding extreme temperature conditions can help prevent issues that may trigger this code.

8. Can resetting the OBDII code P1B1F in a Cadillac Hybrid/Electric Vehicle fix the problem temporarily?

Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear and potentially cause more severe problems in the future.

9. How long does it typically take to repair the OBDII code P1B1F in a Cadillac Hybrid/Electric Vehicle?

The repair time can vary based on the complexity of the issue and availability of parts, but it may take anywhere from a few hours to a few days to fully diagnose and repair the problem.

10. Will driving my Cadillac Hybrid/Electric Vehicle with the OBDII code P1B1F impact its overall performance and efficiency?

Driving with this code present can negatively impact the vehicle's performance, fuel efficiency, and overall reliability, so it is important to address the issue promptly to avoid further complications.