AutoCodes – Chevrolet – P1FD7 Chevrolet

P1FD7 Chevrolet 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 Chevrolet 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 972

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

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

- Common symptoms include poor hybrid system performance, reduced fuel efficiency, and potential stalling or difficulty starting the vehicle.

2. What are the possible causes of the OBDII code P1FD7 in a Chevrolet indicating a low voltage sensor circuit issue with Hybrid/EV Battery Interface Control Module 3?

- Possible causes may include a faulty voltage sensor, damaged wiring or connectors, issues with the battery control module, or a low battery charge.

3. How can I diagnose the OBDII code P1FD7 related to the Hybrid/EV Battery Interface Control Module 3 in my Chevrolet?

- Diagnosis involves using a scan tool to retrieve the code, inspecting the wiring and connectors for any damage, testing the voltage sensor, and checking the battery charge level.

4. Are there any tips for repairing the OBDII code P1FD7 indicating a low voltage sensor circuit issue with the Hybrid/EV Battery Interface Control Module 3 in a Chevrolet?

- Repair tips may include repairing or replacing damaged wiring and connectors, testing and replacing the voltage sensor if necessary, and ensuring the battery is fully charged.

5. Can driving with the OBDII code P1FD7 related to the Hybrid/EV Battery Interface Control Module 3 issue in a Chevrolet cause further damage?

- Continuing to drive with this code can potentially lead to further damage to the hybrid system components and may result in more severe performance issues over time.

6. Is it safe to reset the OBDII code P1FD7 related to the Hybrid/EV Battery Interface Control Module 3 in my Chevrolet using a scan tool?

- While resetting the code may temporarily clear the warning light, it is important to address the underlying issue causing the code to prevent potential damage and ensure proper vehicle operation.

7. How much does it typically cost to repair the OBDII code P1FD7 indicating a low voltage sensor circuit issue with the Hybrid/EV Battery Interface Control Module 3 in a Chevrolet?

- Repair costs can vary depending on the specific cause of the issue, but they may range from a few hundred to over a thousand dollars, especially if components need to be replaced.

8. Can a DIY enthusiast with automotive knowledge fix the OBDII code P1FD7 related to the Hybrid/EV Battery Interface Control Module 3 in a Chevrolet?

- Some aspects of diagnosing and repairing this code may be suitable for DIY enthusiasts with the necessary tools and experience, but more complex issues may require professional intervention.

9. How urgent is it to address the OBDII code P1FD7 indicating a low voltage sensor circuit issue with the Hybrid/EV Battery Interface Control Module 3 in a Chevrolet?

- It is recommended to address this code promptly to prevent further damage to the hybrid system components and ensure optimal vehicle performance and efficiency.

10. Are there any recalls or technical service bulletins related to the OBDII code P1FD7 in Chevrolet vehicles with Hybrid/EV Battery Interface Control Module 3 issues?

- Checking with a Chevrolet dealership or online resources for any recalls or technical service bulletins specific to this code and related components is advisable to stay informed about potential manufacturer-issued remedies.