AutoCodes – Generic – P1FE6

P1FE6 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 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 759

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

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?

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 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 P1FE6 code?

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Information for Specific Makes

P1FE6 Buick — Hybrid/EV Battery Interface Control Module 8 Voltage Sensor Circuit High Voltage
P1FE6 Cadillac — Hybrid/EV Battery Interface Control Module 8 Voltage Sensor Circuit High Voltage
P1FE6 Chevrolet — Hybrid/EV Battery Interface Control Module 8 Voltage Sensor Circuit High Voltage
P1FE6 GMC — Hybrid/EV Battery Interface Control Module 8 Voltage Sensor Circuit High Voltage
P1FE6 Saturn — Hybrid/EV Battery Interface Control Module 8 Voltage Sensor Circuit High Voltage

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 Code

What does the OBDII code P1FE6 mean?

The OBDII code P1FE6 indicates that there is a high voltage detected in the Hybrid/EV Battery Interface Control Module 8 Voltage Sensor Circuit.

What are common symptoms of the P1FE6 code?

Common symptoms include warning lights on the dashboard, reduced engine power, poor acceleration, and the vehicle may enter a limp mode to protect the battery system.

What could cause the P1FE6 code to trigger?

Potential causes include a faulty voltage sensor, issues with the wiring or connectors in the battery interface circuit, or problems within the battery management system itself.

How can I diagnose the P1FE6 code?

To diagnose the P1FE6 code, use an OBDII scanner to confirm the code, inspect the wiring and connectors for damage, check the voltage readings from the sensor, and test the battery management system for faults.

What repairs are needed for the P1FE6 code?

Repairs may include replacing a faulty voltage sensor, repairing damaged wiring or connectors, or reprogramming or replacing the Hybrid/EV Battery Interface Control Module if necessary.

Can I drive my vehicle with the P1FE6 code?

It is not recommended to drive the vehicle with the P1FE6 code present, as it may lead to reduced power and further damage to the battery system.

How can I prevent the P1FE6 code from occurring?

Preventative measures include regular maintenance of the hybrid/EV battery system, ensuring that all connections are clean and secure, and monitoring battery performance for any irregularities.

Is it safe to ignore the P1FE6 code?

Ignoring the P1FE6 code is not safe, as it could lead to more serious issues with the hybrid/EV battery system, potentially resulting in costly repairs and safety hazards.

What should I do if the P1FE6 code returns after repairs?

If the P1FE6 code returns after repairs, further diagnosis is necessary, as it may indicate an underlying issue with the battery management system or other related components.