AutoCodes – Cadillac – P1BD2 Cadillac

P1BD2 Cadillac Code - Hybrid/Electric Vehicle Battery 80 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: P1BD2 Cadillac indicates Hybrid/Electric Vehicle Battery 80 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 773

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 P1BD2 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 P1BD2 Cadillac - Hybrid/Electric Vehicle Battery 80 Circuit Performance - AutoCodes.com — P1BD2 Cadillac Code - Hybrid/Electric Vehicle Battery 80 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1BD2 Cadillac?

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

How to Fix the DTC P1BD2 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 P1BD2 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 P1BD2 Cadillac Code

1. What are common symptoms of OBDII code P1BD2 in a Cadillac Hybrid/Electric Vehicle?

- Common symptoms include reduced hybrid/electric vehicle performance, decreased fuel efficiency, and potential warning lights on the dashboard.

2. What can cause the OBDII code P1BD2 in a Cadillac Hybrid/Electric Vehicle?

- The code P1BD2 typically indicates a performance issue in the Hybrid/Electric Vehicle Battery 80 Circuit, which can be caused by battery malfunctions, wiring issues, or a faulty battery control module.

3. How serious is the OBDII code P1BD2 in a Cadillac Hybrid/Electric Vehicle?

- The code P1BD2 should be addressed promptly as it can affect the performance and efficiency of the hybrid/electric system in the vehicle, potentially leading to further damage if left unrepaired.

4. Can I continue driving my Cadillac with the OBDII code P1BD2?

- It is not recommended to continue driving the vehicle with the code P1BD2 present, as it can lead to decreased performance and potential safety hazards. It is advisable to have the issue diagnosed and repaired as soon as possible.

5. How can I diagnose the OBDII code P1BD2 in my Cadillac Hybrid/Electric Vehicle?

- Proper diagnosis of the code P1BD2 requires specialized diagnostic equipment and knowledge of hybrid/electric vehicle systems. It is recommended to have the vehicle inspected by a qualified technician.

6. What are some repair tips for fixing the OBDII code P1BD2 in a Cadillac Hybrid/Electric Vehicle?

- Repairing the code P1BD2 may involve inspecting the battery, checking the wiring connections, and testing the battery control module. It is recommended to follow manufacturer guidelines for proper repair procedures.

7. How much does it typically cost to repair the OBDII code P1BD2 in a Cadillac Hybrid/Electric Vehicle?

- The cost of repairing the code P1BD2 can vary depending on the extent of the issue and the specific repairs needed. It is advisable to obtain quotes from reputable repair shops or dealerships.

8. Can I reset the OBDII code P1BD2 in my Cadillac Hybrid/Electric Vehicle myself?

- While you can clear the code using an OBDII scanner, it is important to address the underlying issue causing the code to prevent it from reoccurring. Simply clearing the code without diagnosis and repair may not solve the problem.

9. Are there any common recalls or technical service bulletins related to the OBDII code P1BD2 in Cadillac Hybrid/Electric Vehicles?

- It is advisable to check with Cadillac dealerships or the National Highway Traffic Safety Administration (NHTSA) for any related recalls or technical service bulletins pertaining to the code P1BD2.

10. How can regular maintenance help prevent the occurrence of the OBDII code P1BD2 in a Cadillac Hybrid/Electric Vehicle?

- Regular maintenance, including routine battery checks, electrical system inspections, and software updates, can help prevent issues that may trigger the code P1BD2, ensuring optimal performance of the hybrid/electric system.