AutoCodes – Buick – P1FE6 Buick

P1FE6 Buick Code - Hybrid/EV Battery Interface Control Module 8 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: P1FE6 Buick indicates Hybrid/EV Battery Interface Control Module 8 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 971

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 P1FE6 Buick 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 P1FE6 Buick - Hybrid/EV Battery Interface Control Module 8 Voltage Sensor Circuit High Voltage - AutoCodes.com — P1FE6 Buick Code - Hybrid/EV Battery Interface Control Module 8 Voltage Sensor Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1FE6 Buick?

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 P1FE6 Buick?

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 P1FE6 Buick 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 P1FE6 Buick Code

1. What are common symptoms of OBDII code P1FE6 in a Buick Hybrid/EV?

- Common symptoms include poor fuel economy, reduced power, illuminated check engine light, and potential drivability issues.

2. What can cause the Hybrid/EV Battery Interface Control Module 8 voltage sensor circuit high voltage issue?

- Possible causes include a faulty voltage sensor, a damaged wiring harness, a malfunctioning control module, or issues with the hybrid/EV battery itself.

3. How can I diagnose the P1FE6 code in my Buick Hybrid/EV?

- Diagnosis typically involves using a professional OBDII scanner to retrieve the specific code, inspecting the voltage sensor circuit, checking the battery connections, and performing a thorough visual inspection.

4. Can I drive my Buick with the P1FE6 code present?

- It is not recommended to drive your vehicle with the P1FE6 code present, as it can lead to further damage and potential safety hazards. It is best to address the issue promptly.

5. How serious is the Hybrid/EV Battery Interface Control Module 8 voltage sensor circuit high voltage problem?

- The issue should be taken seriously, as it can impact the performance and efficiency of your hybrid/EV system. Ignoring the problem may lead to more extensive repairs in the future.

6. What are some DIY repair tips for the P1FE6 code in a Buick Hybrid/EV?

- DIY repair tips may include checking and tightening battery connections, inspecting for any visible damage to the wiring harness, and ensuring proper grounding of components.

7. Should I reset the OBDII code P1FE6 after making repairs?

- Yes, it is recommended to reset the code using an OBDII scanner after making necessary repairs. This will clear the fault code and check if the issue has been successfully resolved.

8. Can a mechanic help me fix the Hybrid/EV Battery Interface Control Module 8 voltage sensor circuit high voltage problem?

- Yes, a qualified mechanic with experience in hybrid/EV systems can diagnose and repair the issue using specialized tools and knowledge.

9. How much does it typically cost to repair the P1FE6 code in a Buick Hybrid/EV?

- Repair costs can vary depending on the underlying cause of the issue. It is recommended to obtain quotes from different mechanics or dealerships to compare prices.

10. Is the P1FE6 code covered under any warranty for Buick Hybrid/EV vehicles?

- Depending on the vehicle's warranty status and the specific circumstances, the repair for the P1FE6 code may be covered under the manufacturer's warranty or any extended warranty policies. It is advisable to check with your dealership for more information.