AutoCodes – Generic – P1FE0

P1FE0 Code - Hybrid/EV Battery Interface Control Module 2 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: P1FE0 indicates Hybrid/EV Battery Interface Control Module 2 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 2,025

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 P1FE0 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 P1FE0 - Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Circuit High Voltage - AutoCodes.com — P1FE0 Code - Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1FE0?

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 P1FE0?

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 P1FE0 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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Information for Specific Makes

P1FE0 Buick — Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Circuit High Voltage
P1FE0 Cadillac — Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Circuit High Voltage
P1FE0 Chevrolet — Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Circuit High Voltage
P1FE0 GMC — Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Circuit High Voltage
P1FE0 Saturn — Hybrid/EV Battery Interface Control Module 2 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 P1FE0 Code

1. What are the common symptoms of OBDII code P1FE0 related to the Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Circuit High Voltage issue?

- Common symptoms include illuminated Check Engine Light, decreased fuel efficiency, reduced hybrid system performance, and potential inability to start the vehicle.

2. What are the possible causes of OBDII code P1FE0 indicating the Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Circuit High Voltage problem?

- Possible causes include a faulty Hybrid/EV Battery Interface Control Module 2, high voltage in the battery system, damaged wiring or connectors, or a malfunctioning voltage sensor.

3. How can I diagnose the OBDII code P1FE0 issue related to the Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Circuit High Voltage?

- Diagnosis typically involves using a diagnostic scanner to retrieve the specific trouble code, inspecting the battery system components, checking for damaged wiring, and testing the voltage sensor.

4. Is it safe to continue driving my vehicle with the OBDII code P1FE0 triggered by the Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Circuit High Voltage fault?

- It is not recommended to continue driving the vehicle with this code as it can lead to further damage to the hybrid system and potentially unsafe driving conditions.

5. What are the repair options for fixing the OBDII code P1FE0 issue associated with the Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Circuit High Voltage?

- Repair options may include replacing the faulty Hybrid/EV Battery Interface Control Module 2, repairing damaged wiring or connectors, resetting the fault code, and recalibrating the voltage sensor.

6. Can I reset the OBDII code P1FE0 myself after repairing the Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Circuit High Voltage problem?

- Yes, you can reset the code using a diagnostic scanner or by disconnecting the vehicle's battery for a few minutes to clear the fault code.

7. How crucial is it to address the OBDII code P1FE0 associated with the Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Circuit High Voltage promptly?

- It is important to address this code promptly to prevent further damage to the hybrid system, ensure optimal vehicle performance, and maintain safety while driving.

8. Are there any preventive maintenance measures I can take to avoid triggering the OBDII code P1FE0 related to the Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Circuit High Voltage?

- Regularly inspecting the hybrid system components, ensuring proper battery maintenance, and addressing any warning signs promptly can help prevent this issue.

9. Can a DIY enthusiast with automotive knowledge repair the OBDII code P1FE0 issue linked to the Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Circuit High Voltage?

- While some repairs may be possible for experienced DIY enthusiasts, addressing complex hybrid system issues like this code often requires specialized knowledge and tools, so it is recommended to consult a professional technician.

10. How much can I expect to pay for repairing the OBDII code P1FE0 problem caused by the Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Circuit High Voltage issue?

- Repair costs can vary depending on the extent of the issue, parts needed, labor rates, and location, but it is advisable to obtain quotes from reputable repair shops or dealerships for an accurate estimate.