AutoCodes – Saturn – P1E5F Saturn

P1E5F Saturn Code - Hybrid/Electric Vehicle Battery 52 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: P1E5F Saturn indicates Hybrid/Electric Vehicle Battery 52 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 723

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 P1E5F Saturn 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 P1E5F Saturn - Hybrid/Electric Vehicle Battery 52 Circuit - AutoCodes.com — P1E5F Saturn Code - Hybrid/Electric Vehicle Battery 52 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E5F Saturn?

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

How to Fix the DTC P1E5F Saturn?

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 P1E5F Saturn 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 P1E5F Saturn Code

1. What are common symptoms of OBDII code P1E5F in a Saturn Hybrid/Electric Vehicle?

- Common symptoms may include reduced battery performance, decreased fuel efficiency, and difficulty starting the vehicle.

2. What does OBDII code P1E5F indicate in a Saturn Hybrid/Electric Vehicle?

- OBDII code P1E5F specifically refers to an issue with the 52nd circuit of the hybrid/electric vehicle battery.

3. What are possible causes of OBDII code P1E5F in a Saturn Hybrid/Electric Vehicle?

- Potential causes may include a faulty battery cell, damaged wiring in the 52nd circuit, or issues with the battery management system.

4. How can I diagnose the source of OBDII code P1E5F in my Saturn Hybrid/Electric Vehicle?

- Diagnosing the issue may require a comprehensive battery system scan using specialized diagnostic equipment to pinpoint the exact cause.

5. Can I continue driving my Saturn Hybrid/Electric Vehicle with OBDII code P1E5F present?

- It is not recommended to continue driving the vehicle with this code active, as it can lead to further battery damage and potential safety hazards.

6. What are the potential repair options for OBDII code P1E5F in a Saturn Hybrid/Electric Vehicle?

- Repair options may include replacing the faulty battery cell, repairing damaged wiring, or recalibrating the battery management system.

7. Is it possible to reset OBDII code P1E5F in a Saturn Hybrid/Electric Vehicle without addressing the underlying issue?

- While you can clear the code temporarily, it will likely reappear until the root cause of the problem is identified and resolved.

8. How can regular maintenance help prevent OBDII code P1E5F from occurring in a Saturn Hybrid/Electric Vehicle?

- Regularly servicing the battery system and following manufacturer recommendations can help prevent issues leading to this code.

9. Can extreme weather conditions affect the likelihood of OBDII code P1E5F appearing in a Saturn Hybrid/Electric Vehicle?

- Yes, extreme temperatures can impact the performance of the battery system and potentially trigger this code.

10. Is it advisable to seek professional help for diagnosing and repairing OBDII code P1E5F in a Saturn Hybrid/Electric Vehicle?

- Due to the complexity of hybrid/electric vehicle systems, it is recommended to consult a qualified technician for accurate diagnosis and repair of this code.