AutoCodes – Cadillac – P1E53 Cadillac

P1E53 Cadillac Code - Hybrid/Electric Vehicle Battery 40 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: P1E53 Cadillac indicates Hybrid/Electric Vehicle Battery 40 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 784

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 Apr 23, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1E53 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 P1E53 Cadillac - Hybrid/Electric Vehicle Battery 40 Circuit - AutoCodes.com — P1E53 Cadillac Code - Hybrid/Electric Vehicle Battery 40 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E53 Cadillac?

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

How to Fix the DTC P1E53 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 P1E53 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.

Need more information about the P1E53 Cadillac code?

Need more information on how to fix the P1E53 Cadillac code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1E53 Cadillac code diagnosed by a professional: Find a repair shop in your area

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 P1E53 Cadillac Code

1. What are some common symptoms of OBDII code P1E53 in a Cadillac hybrid/electric vehicle?

- Common symptoms include reduced electric vehicle range, difficulty starting the vehicle, and warning lights on the dashboard related to the hybrid/electric system.

2. What does OBDII code P1E53 indicate in a Cadillac hybrid/electric vehicle?

- This code specifically points to an issue with the Hybrid/Electric Vehicle Battery 40 Circuit in the vehicle.

3. What are some possible causes of OBDII code P1E53 in a Cadillac hybrid/electric vehicle?

- Possible causes include a faulty battery pack, damaged wiring or connectors in the circuit, issues with the battery management system, or a software malfunction.

4. How can I diagnose the Hybrid/Electric Vehicle Battery 40 Circuit issue related to code P1E53 in my Cadillac?

- Diagnosis typically involves using a professional OBDII scanner to retrieve the code, inspecting the battery pack and connections for any visible damage, and checking the battery management system for errors.

5. Can I continue driving my Cadillac with OBDII code P1E53 present?

- It is not recommended to drive the vehicle with this code present, as it indicates a potential issue with the hybrid/electric system that can impact the vehicle's performance and safety.

6. Is it possible to reset OBDII code P1E53 in a Cadillac without addressing the underlying issue?

- While you can clear the code with an OBDII scanner, it is important to address the root cause of the problem to prevent further issues with the hybrid/electric system.

7. How much does it typically cost to repair OBDII code P1E53 in a Cadillac hybrid/electric vehicle?

- The cost of repair can vary depending on the specific issue causing the code, but it may involve replacing the battery pack, repairing damaged wiring, or recalibrating the battery management system.

8. Are there any DIY tips for troubleshooting OBDII code P1E53 in a Cadillac?

- DIY tips may include visually inspecting the battery connections, ensuring the vehicle is parked in a safe location, and consulting the vehicle's manual for specific troubleshooting steps.

9. Can extreme weather conditions affect the Hybrid/Electric Vehicle Battery 40 Circuit and trigger code P1E53 in a Cadillac?

- Yes, extreme temperatures can impact the performance and health of the hybrid/electric battery system, potentially leading to issues with the battery circuit and triggering the OBDII code.

10. How often should I have the hybrid/electric system of my Cadillac checked to prevent issues like OBDII code P1E53?

- It is recommended to have the hybrid/electric system inspected as part of regular maintenance, especially before extreme weather conditions or long trips, to prevent unexpected issues like code P1E53.