AutoCodes – Saturn – P1FE9 Saturn

P1FE9 Saturn Code - Hybrid/EV Battery Interface Control Module 1 Voltage Sensor Performance

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: P1FE9 Saturn indicates Hybrid/EV Battery Interface Control Module 1 Voltage Sensor Performance.
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 785

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 P1FE9 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 P1FE9 Saturn - Hybrid/EV Battery Interface Control Module 1 Voltage Sensor Performance - AutoCodes.com — P1FE9 Saturn Code - Hybrid/EV Battery Interface Control Module 1 Voltage Sensor Performance

What does this mean?

What are the Possible Causes of the DTC P1FE9 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 P1FE9 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 P1FE9 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 P1FE9 Saturn 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 P1FE9 Saturn Code

1. What are the common symptoms of OBDII code P1FE9 in a Saturn Hybrid/EV vehicle?

- Common symptoms include reduced fuel efficiency, loss of power, and potential illumination of the check engine light.

2. What can cause the OBDII code P1FE9 to be triggered in a Saturn Hybrid/EV vehicle?

- The code P1FE9 is typically triggered by issues with the Hybrid/EV Battery Interface Control Module 1 Voltage Sensor, such as sensor malfunctions or wiring problems.

3. How serious is the OBDII code P1FE9 in a Saturn Hybrid/EV vehicle?

- The code P1FE9 should be addressed promptly to prevent further damage to the battery system and ensure optimal vehicle performance.

4. How can I diagnose the cause of OBDII code P1FE9 in my Saturn Hybrid/EV vehicle?

- Diagnosing the issue may require using a diagnostic scanner to read the code, as well as performing a thorough inspection of the voltage sensor and related wiring.

5. Can I continue driving my Saturn Hybrid/EV vehicle with the OBDII code P1FE9 present?

- It is not recommended to continue driving the vehicle with the code P1FE9 present, as it can lead to potential battery and performance issues.

6. What are some repair tips for addressing the OBDII code P1FE9 in a Saturn Hybrid/EV vehicle?

- Repair tips may include checking and cleaning the voltage sensor connections, testing the sensor for proper functionality, and repairing any damaged wiring.

7. Is it possible to reset the OBDII code P1FE9 in a Saturn Hybrid/EV vehicle without addressing the underlying issue?

- While it is possible to clear the code temporarily, it is crucial to address the root cause to prevent the code from reoccurring.

8. Can a DIY enthusiast fix the OBDII code P1FE9 in a Saturn Hybrid/EV vehicle?

- Depending on the level of expertise and access to tools, some DIY enthusiasts may be able to diagnose and repair the issue related to the code P1FE9.

9. How much does it typically cost to repair the OBDII code P1FE9 in a Saturn Hybrid/EV vehicle?

- The cost of repair can vary depending on the exact cause of the issue, but it may involve sensor replacement, wiring repairs, or software updates.

10. Are there any recalls or service bulletins related to the OBDII code P1FE9 in Saturn Hybrid/EV vehicles?

- It is recommended to check with a Saturn dealership or the manufacturer for any recalls or service bulletins related to the code P1FE9 to see if there are any known issues or remedies.