AutoCodes – Generic – P1E5D

P1E5D Code - Hybrid/Electric Vehicle Battery 50 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: P1E5D indicates Hybrid/Electric Vehicle Battery 50 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 977

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 P1E5D 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 P1E5D - Hybrid/Electric Vehicle Battery 50 Circuit - AutoCodes.com — P1E5D Code - Hybrid/Electric Vehicle Battery 50 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E5D?

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

How to Fix the DTC P1E5D?

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 P1E5D 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 P1E5D code?

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Need Help with the Code?

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Information for Specific Makes

P1E5D Buick — Hybrid/Electric Vehicle Battery 50 Circuit
P1E5D Cadillac — Hybrid/Electric Vehicle Battery 50 Circuit
P1E5D Chevrolet — Hybrid/Electric Vehicle Battery 50 Circuit
P1E5D GMC — Hybrid/Electric Vehicle Battery 50 Circuit
P1E5D Saturn — Hybrid/Electric Vehicle Battery 50 Circuit

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 P1E5D Code

1. What does the OBDII code P1E5D mean?

P1E5D indicates an issue with the Hybrid/Electric Vehicle Battery 50 Circuit, which typically involves a malfunction in the electrical circuit for a specific battery module.

2. What are common symptoms of the P1E5D code?

Symptoms may include a warning light on the dashboard, reduced hybrid or electric system performance, decreased fuel economy, or the vehicle operating in a limited or fail-safe mode.

3. What causes the P1E5D code to appear?

Common causes include faulty battery cells, damaged wiring or connectors in the battery circuit, a malfunctioning battery management system, or software issues in the control module.

4. How is the P1E5D code diagnosed?

A technician will use a scan tool to read codes, inspect the battery circuit wiring and connectors, test the affected battery modules, and check for updates or faults in the battery management system.

5. Can I drive with the P1E5D code?

It is not recommended to drive with this code active, as it may lead to further damage to the battery system or compromise vehicle performance and safety.

6. How do you fix the P1E5D code?

Repairs may include replacing damaged wiring or connectors, repairing or replacing faulty battery cells, updating the battery management system software, or replacing the battery pack if necessary.

7. How much does it cost to repair the P1E5D code?

Repair costs can vary widely, ranging from $100 for minor wiring repairs to several thousand dollars if the hybrid battery pack needs replacement.

8. Can a software update fix the P1E5D code?

In some cases, a software update for the battery management system may resolve the issue, but this depends on the vehicle manufacturer and the specific nature of the problem.

9. What tools are required to diagnose the P1E5D code?

Diagnosis typically requires an OBDII scan tool with hybrid system capabilities, a multimeter for testing circuits, and the vehicleâ€™s service manual for wiring diagrams.

10. What should I do if the P1E5D code keeps coming back?

If the code persists after repairs, recheck the wiring and connectors, confirm the battery modules' condition, and consult a specialist to rule out deeper issues in the battery management system.