AutoCodes – Saturn – P1FE7 Saturn

P1FE7 Saturn Code - Hybrid/EV Battery Interface Control Module 9 Voltage Sensor Circuit High Voltage

Quick Answer

The hybrid battery contains 192 individual cells. Common causes include Faulty Hybrid/EV Battery Interface Control Module, Hybrid/EV Battery Interface Control Module harness is open or shorted, Hybrid/EV Battery Interface Control Module circuit poor electrical connection. 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: P1FE7 Saturn indicates Hybrid/EV Battery Interface Control Module 9 Voltage Sensor Circuit High Voltage.
Common causes: Common causes include Faulty Hybrid/EV Battery Interface Control Module, Hybrid/EV Battery Interface Control Module harness is open or shorted, Hybrid/EV Battery Interface Control Module circuit poor electrical connection.
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 826

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 Apr 27, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1FE7 Saturn Description

The hybrid battery contains 192 individual cells. Two cells are welded together in parallel and called a cell group. There are a total of 96 cell groups in the hybrid battery 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 cell groups are joined to form 3 distinct sections. The first 24 battery cell groups make up battery section 1. This section is adjacent to the cowl and contains battery cell groups 73 through 96. The next 28 battery cell groups make up battery section 2. This section is located behind section 1 and contains battery cell groups 45 through 72. The transverse battery section is section number 3 and it contains the remaining 44 battery cell groups 1 through 44. The battery sections also contain two temperature sensors, with one sensor located at each end of the section.
The battery energy control module monitors the voltage of the 96 battery cell groups. The voltage sense lines are attached to each individual cell group, and these sense lines terminate at a connector located on the top surface of the battery section. A voltage sense harness joins this connector to the battery energy control module.
The battery energy control module contains internal interface control modules that monitor specific cell groups.
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 the hybrid powertrain control module 2 through serial data. The hybrid powertrain control module 2 is the host controller for diagnostic trouble code information.

OBDII Code P1FE7 Saturn - Hybrid/EV Battery Interface Control Module 9 Voltage Sensor Circuit High Voltage - AutoCodes.com — P1FE7 Saturn Code - Hybrid/EV Battery Interface Control Module 9 Voltage Sensor Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1FE7 Saturn?

Faulty Hybrid/EV Battery Interface Control Module
Hybrid/EV Battery Interface Control Module harness is open or shorted
Hybrid/EV Battery Interface Control Module circuit poor electrical connection

How to Fix the DTC P1FE7 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 P1FE7 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.

Need more information about the P1FE7 Saturn code?

Need more information on how to fix the P1FE7 Saturn code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P1FE7 Saturn Code

1. What are the common symptoms of OBDII code P1FE7 in a Saturn Hybrid/EV vehicle?

The common symptoms of code P1FE7 include check engine light illumination, reduced hybrid/EV system performance, and potential issues with the battery interface control module.

2. What can cause the Hybrid/EV Battery Interface Control Module 9 Voltage Sensor Circuit High Voltage code in a Saturn?

Potential causes of code P1FE7 in a Saturn Hybrid/EV vehicle include a faulty voltage sensor, wiring issues in the voltage sensor circuit, or problems with the battery interface control module itself.

3. How serious is the P1FE7 code in a Saturn Hybrid/EV vehicle?

Code P1FE7 should be addressed promptly as it can affect the performance and efficiency of the hybrid/EV system. Ignoring this code may lead to further damage to the battery interface control module or other components.

4. Can I continue driving my Saturn with the P1FE7 code present?

It is not recommended to drive your Saturn with the P1FE7 code active, as it can impact the functionality of the hybrid/EV system. It's advisable to have the vehicle inspected and repaired by a qualified technician.

5. How can I diagnose and repair the Hybrid/EV Battery Interface Control Module 9 Voltage Sensor Circuit High Voltage code in my Saturn?

Diagnosing and repairing code P1FE7 typically involves using a diagnostic scanner to pinpoint the exact cause of the issue. Repair may include replacing the faulty voltage sensor, repairing wiring issues, or addressing problems with the battery interface control module.

6. Is it possible to reset the P1FE7 code in a Saturn Hybrid/EV vehicle?

Resetting the P1FE7 code may temporarily turn off the check engine light, but it will not fix the underlying issue causing the fault code. It's important to diagnose and repair the root cause of the problem to prevent future issues.

7. How much does it cost to fix the P1FE7 code in a Saturn Hybrid/EV vehicle?

The cost of repairing the P1FE7 code can vary depending on the specific cause of the issue and the labor rates of the repair shop. It's recommended to obtain a diagnostic and repair estimate from a trusted mechanic.

8. Can a DIY enthusiast fix the P1FE7 code in a Saturn Hybrid/EV vehicle?

While some DIY enthusiasts may have the skills to diagnose and repair code P1FE7, it is a complex issue related to the hybrid/EV system. It's best to consult a professional technician with experience in hybrid vehicle repairs.

9. Are there any recalls related to the Hybrid/EV Battery Interface Control Module 9 Voltage Sensor Circuit High Voltage code in Saturn vehicles?

Recalls related to code P1FE7 may vary by model year and region. It's advisable to check with the manufacturer or a certified Saturn dealership to inquire about any existing recalls for this issue.

10. How can I prevent the recurrence of the P1FE7 code in my Saturn Hybrid/EV vehicle?

Regular maintenance, such as checking the hybrid/EV system components and ensuring proper battery health, can help prevent the recurrence of code P1FE7. Following the manufacturer's recommended service schedule is key to keeping the vehicle in optimal condition.