AutoCodes – Cadillac – P0B64 Cadillac

P0B64 Cadillac Code - Hybrid/Electric Vehicle Battery 9 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: P0B64 Cadillac indicates Hybrid/Electric Vehicle Battery 9 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 776

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 07, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0B64 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 P0B64 Cadillac - Hybrid/Electric Vehicle Battery 9 Circuit Performance - AutoCodes.com — P0B64 Cadillac Code - Hybrid/Electric Vehicle Battery 9 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P0B64 Cadillac?

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

How to Fix the DTC P0B64 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 P0B64 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 P0B64 Cadillac Code

1. What are the common symptoms of OBDII code P0B64 in a Cadillac hybrid/electric vehicle?

- Common symptoms include reduced hybrid system performance, decreased fuel efficiency, and potential issues with the hybrid/electric battery.

2. What can cause the OBDII code P0B64 to be triggered in a Cadillac hybrid vehicle?

- The code P0B64 is often triggered by issues related to the Hybrid/Electric Vehicle Battery 9 Circuit, such as a malfunction in the battery pack or a problem with the circuit performance.

3. How can I diagnose the OBDII code P0B64 in my Cadillac hybrid vehicle?

- Diagnosis typically involves using a specialized OBDII scanner to retrieve the specific code, followed by a detailed inspection of the hybrid/electric battery system and related components.

4. Is it safe to continue driving my Cadillac with the OBDII code P0B64 present?

- It is not recommended to continue driving the vehicle with the code active, as it could lead to further damage to the hybrid/electric system and potentially compromise vehicle safety.

5. What are some possible repair tips for addressing the OBDII code P0B64 in a Cadillac hybrid vehicle?

- Repair tips may include checking and repairing any damaged wiring or connections, resetting the system, or replacing the Hybrid/Electric Vehicle Battery 9 Circuit components as needed.

6. Can I reset the OBDII code P0B64 in my Cadillac hybrid vehicle myself?

- While you can attempt to clear the code using an OBDII scanner, it is important to address the underlying issue causing the code to ensure proper functioning of the hybrid/electric system.

7. How much does it typically cost to repair the OBDII code P0B64 in a Cadillac hybrid vehicle?

- Repair costs can vary depending on the specific issue causing the code, but they may range from a few hundred to a few thousand dollars, especially if parts need to be replaced.

8. Are there any preventive maintenance measures I can take to avoid the OBDII code P0B64 in my Cadillac hybrid vehicle?

- Regularly servicing the hybrid/electric system, checking the battery health, and addressing any warning signs promptly can help prevent issues that may trigger the code.

9. Will the OBDII code P0B64 cause my Cadillac hybrid vehicle to fail an emissions test?

- Yes, the presence of the code may cause the vehicle to fail an emissions test, as it indicates a problem with the hybrid/electric system that can affect emissions control.

10. How long does it typically take to repair the OBDII code P0B64 in a Cadillac hybrid vehicle?

- The repair time can vary depending on the complexity of the issue, availability of parts, and the expertise of the technician, but it may take a few hours to a few days to address the code effectively.