AutoCodes – Cadillac – P1E57 Cadillac

P1E57 Cadillac Code - Hybrid/Electric Vehicle Battery 44 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: P1E57 Cadillac indicates Hybrid/Electric Vehicle Battery 44 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 753

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
Add Comment

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

Code P1E57 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 P1E57 Cadillac - Hybrid/Electric Vehicle Battery 44 Circuit - AutoCodes.com — P1E57 Cadillac Code - Hybrid/Electric Vehicle Battery 44 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E57 Cadillac?

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

How to Fix the DTC P1E57 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 P1E57 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 P1E57 Cadillac code?

Need more information on how to fix the P1E57 Cadillac code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1E57 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 P1E57 Cadillac Code

1. What are common symptoms of OBDII code P1E57 in a Cadillac Hybrid/Electric Vehicle?

- Common symptoms include reduced hybrid system performance, decreased fuel efficiency, and potential illumination of the check engine light.

2. What can cause OBDII code P1E57 to trigger in a Cadillac Hybrid/Electric Vehicle?

- The code P1E57 typically indicates a fault in the Hybrid/Electric Vehicle Battery 44 Circuit, which can be caused by issues such as wiring faults, battery module failures, or problems with the battery control module.

3. How serious is OBDII code P1E57 in a Cadillac Hybrid/Electric Vehicle?

- While the vehicle may still be operable with this code, it is important to address it promptly to prevent further damage to the hybrid system and maintain optimal performance and fuel efficiency.

4. Can OBDII code P1E57 be reset in a Cadillac Hybrid/Electric Vehicle?

- The code can be reset using an OBDII scanner, but it is recommended to diagnose and address the underlying issue causing the code to prevent it from reoccurring.

5. What are some DIY repair tips for addressing OBDII code P1E57 in a Cadillac Hybrid/Electric Vehicle?

- DIY repair tips may include checking and repairing any damaged wiring, inspecting and replacing faulty battery modules, and ensuring proper connections to the battery control module.

6. Is it safe to continue driving a Cadillac Hybrid/Electric Vehicle with OBDII code P1E57 present?

- While the vehicle may still be safe to drive with this code, it is recommended to have the issue diagnosed and repaired as soon as possible to avoid potential further complications.

7. How much does it typically cost to repair OBDII code P1E57 in a Cadillac Hybrid/Electric Vehicle?

- The cost of repairing OBDII code P1E57 can vary depending on the underlying cause of the issue, but it may involve expenses for parts and labor, ranging from a few hundred to a few thousand dollars.

8. Can a Cadillac dealership service department help diagnose and repair OBDII code P1E57?

- Yes, Cadillac dealership service departments are equipped to diagnose and repair OBDII code P1E57 in Hybrid/Electric Vehicles, utilizing specialized tools and expertise in hybrid systems.

9. How long does it typically take to repair OBDII code P1E57 in a Cadillac Hybrid/Electric Vehicle?

- The repair time for OBDII code P1E57 can vary depending on the complexity of the issue, but it may take a few hours to a day or more to diagnose and address the problem effectively.

10. Are there any recalls or technical service bulletins related to OBDII code P1E57 in Cadillac Hybrid/Electric Vehicles?

- It is recommended to check with a Cadillac dealership or the National Highway Traffic Safety Administration (NHTSA) website for any relevant recalls or technical service bulletins related to OBDII code P1E57 in Cadillac Hybrid/Electric Vehicles.