AutoCodes – Cadillac – P1E61 Cadillac

P1E61 Cadillac Code - Hybrid/Electric Vehicle Battery 54 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: P1E61 Cadillac indicates Hybrid/Electric Vehicle Battery 54 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 737

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 P1E61 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 P1E61 Cadillac - Hybrid/Electric Vehicle Battery 54 Circuit - AutoCodes.com — P1E61 Cadillac Code - Hybrid/Electric Vehicle Battery 54 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E61 Cadillac?

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

How to Fix the DTC P1E61 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 P1E61 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 P1E61 Cadillac Code

1. What are common symptoms of OBDII code P1E61 in a Cadillac Hybrid/Electric Vehicle?

- Common symptoms include reduced battery performance, poor fuel efficiency, and potential inability to start the vehicle.

2. What can cause the OBDII code P1E61 to appear in a Cadillac Hybrid/Electric Vehicle?

- The code P1E61 typically indicates a fault in the Hybrid/Electric Vehicle Battery 54 Circuit, which can be caused by issues such as a faulty battery pack, damaged wiring, or a problem with the battery management system.

3. How serious is OBDII code P1E61 in a Cadillac Hybrid/Electric Vehicle?

- This code is considered serious as it directly relates to the performance and health of the vehicle's hybrid/electric battery system. Ignoring the issue can lead to further damage and potential safety risks.

4. Can I continue driving my Cadillac with the OBDII code P1E61 present?

- It is not recommended to continue driving the vehicle with the code P1E61 present, as it can lead to further damage to the hybrid/electric battery system and potentially leave you stranded.

5. How can I diagnose the OBDII code P1E61 in my Cadillac Hybrid/Electric Vehicle?

- Proper diagnosis of the code P1E61 requires a professional scan tool that can communicate with the vehicle's hybrid/electric system to pinpoint the exact cause of the issue.

6. Is it possible to reset the OBDII code P1E61 in a Cadillac Hybrid/Electric Vehicle?

- While you can clear the code temporarily, it is crucial to address the underlying issue causing the code to prevent it from reappearing.

7. What are some repair tips for resolving the OBDII code P1E61 in a Cadillac Hybrid/Electric Vehicle?

- Repair tips may include checking and repairing any damaged wiring, replacing a faulty battery pack, or reprogramming the battery management system as recommended by the manufacturer.

8. Can I fix the OBDII code P1E61 in my Cadillac Hybrid/Electric Vehicle by myself?

- Due to the complexity of hybrid/electric vehicle systems, it is recommended to seek help from a qualified technician or specialized repair shop to properly diagnose and fix the issue related to code P1E61.

9. How much does it cost to repair the OBDII code P1E61 in a Cadillac Hybrid/Electric Vehicle?

- Repair costs can vary depending on the exact cause of the code P1E61, but it is important to budget for potential expenses related to battery pack replacement or system reprogramming.

10. Is there a warranty or recall related to the OBDII code P1E61 in Cadillac Hybrid/Electric Vehicles?

- It is advisable to check with Cadillac or the authorized dealerships for any existing warranties or recalls related to the OBDII code P1E61 to potentially offset repair costs.