AutoCodes – GMC – P1E70 GMC

P1E70 GMC 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 GMC 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 918

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

What does this mean?

What are the Possible Causes of the DTC P1E70 GMC?

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

How to Fix the DTC P1E70 GMC?

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 GMC 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 GMC Code

1. What are the common symptoms of OBDII code P1E70 in a GMC hybrid/electric vehicle?

- Common symptoms include reduced engine power, decreased fuel efficiency, and the vehicle may fail to start.

2. What are the possible causes of OBDII code P1E70 in a GMC hybrid/electric vehicle?

- The code P1E70 typically indicates a fault in the hybrid/electric vehicle battery 69 circuit, which could be caused by a damaged battery cell, faulty wiring, or a malfunctioning battery management system.

3. How can I diagnose OBDII code P1E70 in my GMC hybrid/electric vehicle?

- Diagnosing code P1E70 usually requires a professional scan tool to access the hybrid/electric vehicle's battery management system and identify the specific fault within the battery 69 circuit.

4. Can I continue driving my GMC hybrid/electric vehicle with OBDII code P1E70 present?

- It is not recommended to continue driving the vehicle with code P1E70 present, as it can lead to further damage to the hybrid/electric vehicle's battery system and potentially result in a complete loss of power.

5. How can I repair OBDII code P1E70 in my GMC hybrid/electric vehicle?

- Repairing code P1E70 often involves replacing the damaged battery cell, repairing any faulty wiring, or recalibrating the battery management system to resolve the issue.

6. Are there any DIY tips for troubleshooting OBDII code P1E70 in a GMC hybrid/electric vehicle?

- DIY troubleshooting for code P1E70 is limited due to the complexity of the hybrid/electric vehicle's battery system. It is recommended to seek professional assistance for accurate diagnosis and repair.

7. How much does it typically cost to repair OBDII code P1E70 in a GMC hybrid/electric vehicle?

- The cost of repairing code P1E70 in a GMC hybrid/electric vehicle can vary depending on the extent of the damage and the specific components that need to be replaced. It is advisable to consult a professional for an accurate cost estimate.

8. Can OBDII code P1E70 be a recurring issue in a GMC hybrid/electric vehicle?

- OBDII code P1E70 can be a recurring issue if the underlying cause, such as a faulty battery cell or wiring, is not properly addressed during the initial repair. Regular maintenance and monitoring of the hybrid/electric vehicle's battery system can help prevent recurrence.

9. Is it safe to reset the OBDII code P1E70 in my GMC hybrid/electric vehicle without addressing the underlying issue?

- Resetting the code without addressing the underlying issue may temporarily clear the warning light, but the root cause of the fault in the battery 69 circuit will persist, potentially leading to further problems and safety hazards.

10. How can I prevent OBDII code P1E70 from reoccurring in my GMC hybrid/electric vehicle?

- To prevent code P1E70 from reoccurring, it is essential to maintain the hybrid/electric vehicle's battery system regularly, follow the manufacturer's recommended maintenance schedule, and address any warning signs promptly to avoid more significant issues.