AutoCodes – GMC – P1FE5 GMC

P1FE5 GMC 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 GMC 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 812

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

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 GMC?

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 GMC 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 GMC Code

1. What are the common symptoms of OBDII code P1FE5 in a GMC vehicle?

- Common symptoms include the check engine light illuminating, reduced hybrid/EV performance, and potential issues with the battery system.

2. What causes the OBDII code P1FE5 to appear in a GMC hybrid/EV vehicle?

- This code typically indicates a high voltage reading in the Hybrid/EV Battery Interface Control Module 7 Voltage Sensor circuit, which could be caused by a faulty sensor, wiring issue, or module malfunction.

3. How can I diagnose the OBDII code P1FE5 in my GMC hybrid/EV vehicle?

- Diagnosing this code usually involves using a scan tool to read the specific details of the fault, checking the voltage sensor circuit for any visible damage, and testing the sensor and related components for proper function.

4. Is it safe to drive my GMC vehicle with the OBDII code P1FE5 present?

- It is generally not recommended to drive a vehicle with this code present, as it could lead to further damage to the hybrid/EV system or potential safety hazards.

5. Can I reset the OBDII code P1FE5 in my GMC vehicle myself?

- While you can clear the code using an OBDII scanner, it is important to diagnose and address the underlying issue causing the fault before resetting it to prevent it from reoccurring.

6. What are the repair options for fixing OBDII code P1FE5 in a GMC hybrid/EV vehicle?

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

7. How much does it typically cost to repair OBDII code P1FE5 in a GMC vehicle?

- Repair costs can vary depending on the specific cause of the fault, but it may range from a few hundred to over a thousand dollars, including parts and labor.

8. Are there any recalls or technical service bulletins related to OBDII code P1FE5 in GMC vehicles?

- It is recommended to check with your local GMC dealership or online resources for any relevant recalls or technical service bulletins related to this specific OBDII code.

9. How often does the OBDII code P1FE5 occur in GMC hybrid/EV vehicles?

- While not extremely common, this code can occur in GMC hybrid/EV vehicles, especially as they age and components wear out.

10. Can a DIY enthusiast with basic automotive knowledge repair OBDII code P1FE5 in a GMC vehicle?

- Depending on the specific cause of the fault, a DIY enthusiast may be able to address simpler issues like checking and cleaning connections or replacing components like the sensor with the proper tools and guidance. However, more complex repairs may require professional assistance.