AutoCodes – Saturn – P1E70 Saturn

P1E70 Saturn 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 Saturn 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 824

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

What does this mean?

What are the Possible Causes of the DTC P1E70 Saturn?

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

How to Fix the DTC P1E70 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 P1E70 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 P1E70 Saturn Code

What does the OBDII code P1E70 mean for my Saturn?

The OBDII code P1E70 indicates an issue with the Hybrid/Electric Vehicle Battery 69 Circuit, specifically related to the battery management system.

What symptoms might I experience if my vehicle has the P1E70 code?

Common symptoms include warning lights on the dashboard, reduced engine power, poor fuel economy, and the vehicle may enter limp mode.

What could cause the P1E70 code to trigger?

Possible causes include a faulty battery management system, damaged wiring or connectors in the battery circuit, or a defective hybrid battery.

How can I diagnose the issue associated with the P1E70 code?

To diagnose the issue, use an OBDII scanner to confirm the code, inspect wiring and connectors for damage, and check the battery management system for faults.

Is it safe to drive my Saturn with the P1E70 code?

It is not recommended to drive the vehicle until the issue is resolved, as it may result in further damage or safety risks.

What repairs are typically needed to fix the P1E70 code?

Repairs may include replacing damaged wiring, fixing or replacing connectors, or potentially replacing the hybrid battery if it is found to be defective.

Can I clear the P1E70 code myself?

Yes, you can clear the code using an OBDII scanner, but it is important to address the underlying issue to prevent the code from returning.

How much might it cost to repair the P1E70 code?

Repair costs can vary widely, ranging from a simple wiring fix to a more expensive battery replacement, potentially totaling several hundred to several thousand dollars.

Will a low battery charge trigger the P1E70 code?

Yes, a low battery charge can lead to issues in the battery management system, potentially triggering the P1E70 code.