AutoCodes – GMC – P1FD7 GMC

P1FD7 GMC Code - Hybrid/EV Battery Interface Control Module 3 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: P1FD7 GMC indicates Hybrid/EV Battery Interface Control Module 3 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 778

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 P1FD7 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 P1FD7 GMC - Hybrid/EV Battery Interface Control Module 3 Voltage Sensor Circuit Low Voltage - AutoCodes.com — P1FD7 GMC Code - Hybrid/EV Battery Interface Control Module 3 Voltage Sensor Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1FD7 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 P1FD7 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 P1FD7 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.

Need more information about the P1FD7 GMC code?

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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 P1FD7 GMC Code

1. What are the common symptoms of OBDII code P1FD7 in a GMC related to the Hybrid/EV Battery Interface Control Module 3 Voltage Sensor Circuit Low Voltage?

- Common symptoms include poor fuel economy, reduced power, and potentially a noticeable decrease in hybrid or electric mode performance.

2. What are the possible causes of the OBDII code P1FD7 in a GMC Hybrid/EV vehicle?

- The code P1FD7 can be triggered by issues such as a faulty Hybrid/EV Battery Interface Control Module, damaged wiring, or a malfunctioning voltage sensor.

3. How can I diagnose the Hybrid/EV Battery Interface Control Module 3 Voltage Sensor Circuit Low Voltage problem in my GMC?

- To diagnose this issue, it is recommended to perform a thorough inspection of the wiring related to the voltage sensor, test the voltage sensor itself, and check for any visible damage or corrosion in the connections.

4. Can driving with the OBDII code P1FD7 present cause further damage to my GMC's hybrid or electric components?

- Continued driving with the P1FD7 code present may lead to decreased performance and efficiency in the hybrid or electric system, and could potentially cause further damage if left unresolved.

5. How can I reset the OBDII code P1FD7 in my GMC Hybrid/EV vehicle?

- The OBDII code P1FD7 can typically be reset using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes. However, it is important to address the underlying issue causing the code to prevent it from reoccurring.

6. Is it safe to continue driving my GMC with the Hybrid/EV Battery Interface Control Module 3 Voltage Sensor Circuit Low Voltage issue?

- While it may be possible to drive the vehicle with this issue, it is recommended to have it diagnosed and repaired as soon as possible to prevent any further complications or damage to the hybrid or electric components.

7. Will replacing the Hybrid/EV Battery Interface Control Module solve the P1FD7 code issue in my GMC?

- In some cases, replacing the Hybrid/EV Battery Interface Control Module may resolve the P1FD7 code issue, especially if the module is found to be faulty during diagnostics. However, it is important to ensure proper diagnosis before replacing any components.

8. Can a DIY enthusiast repair the Hybrid/EV Battery Interface Control Module 3 Voltage Sensor Circuit Low Voltage issue in a GMC?

- While some basic troubleshooting steps can be performed by a DIY enthusiast, diagnosing and repairing issues related to the Hybrid/EV system typically require specialized tools and knowledge. It is recommended to consult a professional technician for proper diagnosis and repair.

9. How much does it typically cost to repair the Hybrid/EV Battery Interface Control Module 3 Voltage Sensor Circuit Low Voltage problem in a GMC?

- The cost of repairing the P1FD7 code issue can vary depending on the underlying cause, parts needed, and labor rates. It is advisable to obtain a diagnosis from a qualified technician to get an accurate estimate of the repair cost.

10. Are there any preventative maintenance tips to avoid encountering the OBDII code P1FD7 related to the Hybrid/EV Battery Interface Control Module in a GMC?

- Regularly inspecting the hybrid components, keeping up with scheduled maintenance, and addressing any warning lights or unusual symptoms promptly can help prevent issues like the P1FD7 code from occurring.