AutoCodes – Chevrolet – P1E70 Chevrolet

P1E70 Chevrolet Code - Hybrid/Electric Vehicle Battery 69 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: P1E70 Chevrolet indicates Hybrid/Electric Vehicle Battery 69 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 722

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 P1E70 Chevrolet 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 P1E70 Chevrolet - Hybrid/Electric Vehicle Battery 69 Circuit - AutoCodes.com — P1E70 Chevrolet Code - Hybrid/Electric Vehicle Battery 69 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E70 Chevrolet?

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

How to Fix the DTC P1E70 Chevrolet?

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 P1E70 Chevrolet 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 P1E70 Chevrolet Code

1. What are common symptoms of OBDII code P1E70 Chevrolet related to the Hybrid/Electric Vehicle Battery 69 Circuit?

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

2. What are possible causes of OBDII code P1E70 Chevrolet indicating an issue with the Hybrid/Electric Vehicle Battery 69 Circuit?

- Possible causes may include a faulty high voltage battery pack, damaged battery wiring or connectors, or issues with the battery management system.

3. How can I diagnose the OBDII code P1E70 Chevrolet in relation to the Hybrid/Electric Vehicle Battery 69 Circuit?

- A thorough diagnostic scan using an OBDII scanner specifically designed for hybrid/electric vehicles can help pinpoint the exact issue within the battery system.

4. Are there any safety precautions to consider when working on the Hybrid/Electric Vehicle Battery 69 Circuit?

- It is crucial to follow manufacturer guidelines and safety procedures when working on high voltage systems to prevent electric shock or injury. Always consult a professional if unsure.

5. Can I drive my vehicle with the OBDII code P1E70 Chevrolet related to the Hybrid/Electric Vehicle Battery 69 Circuit?

- It is not recommended to continue driving the vehicle with this code present, as it can lead to further damage to the hybrid/electric system and potential safety risks.

6. What are some DIY repair tips for addressing the OBDII code P1E70 Chevrolet indicating a problem with the Hybrid/Electric Vehicle Battery 69 Circuit?

- DIY repair is not recommended for this complex issue due to the high voltage nature of the hybrid/electric system. It is best to seek professional help for repairs.

7. How much does it typically cost to repair the Hybrid/Electric Vehicle Battery 69 Circuit issue causing the OBDII code P1E70 Chevrolet?

- The cost of repair can vary significantly depending on the specific problem, parts needed, and labor costs. It is advisable to get a diagnosis from a qualified technician for an accurate estimate.

8. Is the OBDII code P1E70 Chevrolet related to the Hybrid/Electric Vehicle Battery 69 Circuit a common issue in Chevrolet hybrid/electric vehicles?

- While not extremely common, issues with the hybrid/electric battery system can occur in Chevrolet hybrid/electric vehicles, necessitating timely diagnosis and repair.

9. Can resetting the OBDII code P1E70 Chevrolet related to the Hybrid/Electric Vehicle Battery 69 Circuit make the issue go away permanently?

- Simply resetting the code without addressing the underlying problem will not permanently solve the issue. It is crucial to diagnose and repair the root cause to prevent future occurrences.

10. How can regular maintenance help prevent issues with the Hybrid/Electric Vehicle Battery 69 Circuit triggering the OBDII code P1E70 Chevrolet?

- Regular maintenance, including scheduled inspections of the hybrid/electric system components, can help detect potential issues early and prevent major failures in the battery system.