AutoCodes – Cadillac – P1E64 Cadillac

P1E64 Cadillac Code - Hybrid/Electric Vehicle Battery 57 Circuit

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: P1E64 Cadillac indicates Hybrid/Electric Vehicle Battery 57 Circuit.
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 834

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 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1E64 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 P1E64 Cadillac - Hybrid/Electric Vehicle Battery 57 Circuit - AutoCodes.com — P1E64 Cadillac Code - Hybrid/Electric Vehicle Battery 57 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E64 Cadillac?

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

How to Fix the DTC P1E64 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 P1E64 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 P1E64 Cadillac Code

1. What are common symptoms of OBDII code P1E64 in a Cadillac Hybrid/Electric Vehicle?

- Common symptoms include reduced electric range, poor performance, and potential issues with battery charging.

2. What does the OBDII code P1E64 indicate in a Cadillac Hybrid/Electric Vehicle?

- The code P1E64 specifically refers to a fault in the Hybrid/Electric Vehicle Battery 57 Circuit.

3. What are possible causes of the OBDII code P1E64 in a Cadillac Hybrid/Electric Vehicle?

- Possible causes include a faulty battery pack, issues with the battery management system, wiring problems, or sensor malfunctions.

4. How can I diagnose the OBDII code P1E64 in my Cadillac Hybrid/Electric Vehicle?

- Diagnosis typically involves using a scan tool to read the code, checking the battery connections, inspecting wiring for damage, and testing sensors for proper functioning.

5. Can I continue driving my Cadillac with the OBDII code P1E64 present?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage to the battery system and potentially compromise safety.

6. Is it safe to attempt repairs on the Hybrid/Electric Vehicle Battery 57 Circuit myself?

- Due to the high voltage nature of hybrid/electric vehicle systems, it is strongly advised to seek professional help for diagnosing and repairing issues related to the battery circuit.

7. How expensive is it to repair the OBDII code P1E64 in a Cadillac Hybrid/Electric Vehicle?

- Repair costs can vary depending on the exact cause of the code, but they can range from a few hundred to a few thousand dollars, especially if the battery pack needs to be replaced.

8. Can a reset or clearing of the code fix the issue temporarily?

- Clearing the code may temporarily remove the warning light, but it will not fix the underlying issue causing the fault in the Hybrid/Electric Vehicle Battery 57 Circuit.

9. Are there any preventive maintenance tips to avoid encountering the OBDII code P1E64 in a Cadillac Hybrid/Electric Vehicle?

- Regularly inspecting the battery system, following manufacturer's maintenance schedules, and avoiding extreme temperature conditions can help prevent issues that may trigger this code.

10. How long does it typically take to repair the OBDII code P1E64 in a Cadillac Hybrid/Electric Vehicle?

- Repair times can vary based 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 fully address the problem.