AutoCodes – Chevrolet – P1FE5 Chevrolet

P1FE5 Chevrolet Code - Hybrid/EV Battery Interface Control Module 7 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: P1FE5 Chevrolet indicates Hybrid/EV Battery Interface Control Module 7 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 824

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 P1FE5 Chevrolet 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 P1FE5 Chevrolet - Hybrid/EV Battery Interface Control Module 7 Voltage Sensor Circuit High Voltage - AutoCodes.com — P1FE5 Chevrolet Code - Hybrid/EV Battery Interface Control Module 7 Voltage Sensor Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1FE5 Chevrolet?

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 P1FE5 Chevrolet?

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 P1FE5 Chevrolet 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 P1FE5 Chevrolet Code

1. What does the OBDII code P1FE5 mean on a Chevrolet?

P1FE5 indicates a problem with the Hybrid/EV Battery Interface Control Module 7, specifically that the voltage sensor circuit is reading a higher-than-expected voltage.

2. What are the common symptoms of the P1FE5 code?

Symptoms may include an illuminated check engine light, reduced hybrid/EV performance, limited battery charging, and possible drivability issues.

3. What causes the P1FE5 code to appear?

This code can be triggered by a faulty voltage sensor, damaged wiring or connectors, software issues in the control module, or a malfunctioning Hybrid/EV Battery Interface Control Module.

4. Can I continue driving with the P1FE5 code active?

Driving with this code may be possible, but it is not recommended due to potential risks to the hybrid/EV battery system and a possible reduction in vehicle performance.

5. How can I diagnose the P1FE5 code?

Diagnosis involves inspecting the wiring and connectors for damage, checking the voltage sensor readings, and using a scan tool to monitor the Hybrid/EV Battery Interface Control Module data.

6. What repairs can fix the P1FE5 code?

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

7. How much does it cost to fix a P1FE5 code on a Chevrolet?

Costs vary depending on the specific repair, ranging from $100 for simple wiring fixes to over $1,000 for module replacement and reprogramming.

8. Can a software update resolve the P1FE5 code?

Yes, in some cases, a software update for the Hybrid/EV Battery Interface Control Module can resolve the issue if it is caused by a programming glitch.

9. What tools are needed to diagnose the P1FE5 code?

You'll need a professional-grade OBDII scanner, a multimeter to test voltage, and possibly manufacturer-specific diagnostic software for in-depth testing.

10. Is the P1FE5 code specific to Chevrolet hybrid/EV vehicles?

Yes, this code is specific to Chevrolet hybrid and EV models and relates to their battery interface control systems.