AutoCodes – Cadillac – P1E80 Cadillac

P1E80 Cadillac Code - Hybrid/Electric Vehicle Battery 85 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: P1E80 Cadillac indicates Hybrid/Electric Vehicle Battery 85 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 791

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 P1E80 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 P1E80 Cadillac - Hybrid/Electric Vehicle Battery 85 Circuit - AutoCodes.com — P1E80 Cadillac Code - Hybrid/Electric Vehicle Battery 85 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E80 Cadillac?

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

How to Fix the DTC P1E80 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 P1E80 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 P1E80 Cadillac Code

1. What are the common symptoms of OBDII code P1E80 Cadillac related to the Hybrid/Electric Vehicle Battery 85 Circuit?

- Common symptoms include reduced electric vehicle range, poor hybrid system performance, and potential inability to start the vehicle.

2. What are the possible causes of OBDII code P1E80 Cadillac indicating an issue with the Hybrid/Electric Vehicle Battery 85 Circuit?

- Causes may include a faulty battery pack, damaged battery cells, issues with the battery management system, or wiring/connectivity problems.

3. How can I diagnose the Hybrid/Electric Vehicle Battery 85 Circuit issue triggering OBDII code P1E80 in my Cadillac?

- Diagnosis typically involves using specialized diagnostic tools to check the battery voltage levels, inspecting the battery pack for physical damage, and testing the battery cells individually.

4. Is it safe to continue driving my Cadillac with OBDII code P1E80 related to the Hybrid/Electric Vehicle Battery 85 Circuit?

- It is not recommended to drive the vehicle with this code as it can lead to further damage to the hybrid or electric components. Seek professional help to address the issue promptly.

5. Can I reset the OBDII code P1E80 in my Cadillac to see if it reoccurs, or should I address the underlying issue immediately?

- While you can clear the code temporarily, it's crucial to address the root cause of the problem to prevent potential safety hazards and ensure the proper functioning of your vehicle.

6. What are some DIY repair tips for resolving OBDII code P1E80 in a Cadillac with Hybrid/Electric Vehicle Battery 85 Circuit problems?

- DIY repair tips may include checking and tightening battery connections, inspecting wiring for damage, and ensuring the battery pack is securely in place.

7. How much does it typically cost to repair OBDII code P1E80 linked to the Hybrid/Electric Vehicle Battery 85 Circuit in a Cadillac?

- The cost of repair can vary depending on the exact issue, but it may involve battery pack replacement, which can range from a few hundred to several thousand dollars.

8. Can a regular mechanic address the OBDII code P1E80 Hybrid/Electric Vehicle Battery 85 Circuit problem, or do I need to visit a specialized hybrid/electric vehicle technician?

- Due to the complexity of hybrid/electric systems, it's advisable to seek assistance from a mechanic experienced in working with hybrid and electric vehicles to diagnose and repair this issue accurately.

9. How long does it typically take to repair OBDII code P1E80 Cadillac related to the Hybrid/Electric Vehicle Battery 85 Circuit?

- The repair time can vary based on the specific problem, but it may take several hours to a day to diagnose and address the issue effectively.

10. Are there any preventive maintenance steps I can take to avoid encountering OBDII code P1E80 related to the Hybrid/Electric Vehicle Battery 85 Circuit in my Cadillac?

- Regularly inspecting the battery pack, following the manufacturer's maintenance schedule, and avoiding extreme temperature conditions can help prevent issues leading to this fault code.