AutoCodes – GMC – P1FDE GMC

P1FDE GMC Code - Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Circuit Low 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: P1FDE GMC indicates Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Circuit Low 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 775

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 P1FDE 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 P1FDE GMC - Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Circuit Low Voltage - AutoCodes.com — P1FDE GMC Code - Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1FDE 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 P1FDE 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 P1FDE 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 P1FDE GMC Code

1. What are the common symptoms of OBDII code P1FDE in a GMC related to the Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Circuit Low Voltage?

- Common symptoms include poor fuel efficiency, reduced power, and potential issues with the hybrid or electric propulsion system.

2. What are the possible causes of OBDII code P1FDE in a GMC indicating Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Circuit Low Voltage?

- Possible causes may include a faulty battery interface control module, a failing voltage sensor, wiring issues, or a weak hybrid/EV battery.

3. How can I diagnose the OBDII code P1FDE in a GMC related to the Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Circuit Low Voltage?

- Diagnosis typically involves using a diagnostic scanner to retrieve the specific fault code, conducting a visual inspection of wiring, connectors, and components, and testing the voltage sensor and control module.

4. Can I continue driving my GMC with OBDII code P1FDE indicating Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Circuit Low Voltage?

- It is not recommended to continue driving the vehicle with this fault code, as it can lead to potential issues with the hybrid or electric propulsion system and may cause further damage.

5. How can I repair OBDII code P1FDE in a GMC for the Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Circuit Low Voltage?

- Repair options may include replacing the battery interface control module, voltage sensor, or addressing any wiring issues identified during diagnosis.

6. Are there any DIY tips for addressing OBDII code P1FDE in a GMC related to the Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Circuit Low Voltage?

- DIY tips may include checking and cleaning electrical connections, ensuring proper battery maintenance, and following manufacturer's guidelines for hybrid/EV system care.

7. Will resetting the OBDII code P1FDE in a GMC related to the Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Circuit Low Voltage solve the issue?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing the fault code to trigger. Proper diagnosis and repair are necessary.

8. Can a professional mechanic help me with OBDII code P1FDE in a GMC indicating Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Circuit Low Voltage?

- Yes, a qualified mechanic with experience in hybrid and electric vehicle systems can diagnose and repair the issue correctly to ensure the vehicle's optimal performance and safety.

9. Is OBDII code P1FDE indicating Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Circuit Low Voltage a common problem in GMC vehicles?

- While it may not be extremely common, issues related to the hybrid/EV system, including this fault code, can occur in GMC vehicles equipped with such technology.

10. How can I prevent OBDII code P1FDE related to Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Circuit Low Voltage in my GMC?

- Regular maintenance, following manufacturer's guidelines for hybrid/EV systems, and addressing any warning signs promptly can help prevent issues leading to this fault code.