AutoCodes – Chevrolet – P1FD5 Chevrolet

P1FD5 Chevrolet Code - Hybrid/EV Battery Interface Control Module 1 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: P1FD5 Chevrolet indicates Hybrid/EV Battery Interface Control Module 1 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 827

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1FD5 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 P1FD5 Chevrolet - Hybrid/EV Battery Interface Control Module 1 Voltage Sensor Circuit Low Voltage - AutoCodes.com — P1FD5 Chevrolet Code - Hybrid/EV Battery Interface Control Module 1 Voltage Sensor Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1FD5 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 P1FD5 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 P1FD5 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.

Need more information about the P1FD5 Chevrolet code?

Need more information on how to fix the P1FD5 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1FD5 Chevrolet code diagnosed by a professional: Find a repair shop in your area

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 P1FD5 Chevrolet Code

1. What does the OBDII code P1FD5 mean on a Chevrolet?

The P1FD5 code indicates a problem with the Hybrid/EV Battery Interface Control Module 1 Voltage Sensor Circuit, specifically detecting low voltage.

2. What are the symptoms of the P1FD5 code?

Symptoms may include an illuminated check engine light, reduced hybrid/EV performance, decreased fuel efficiency, or limited vehicle range.

3. What causes the P1FD5 code to appear?

Common causes include a faulty voltage sensor, damaged wiring or connectors, issues with the battery interface control module, or a failing hybrid/EV battery.

4. Can I continue driving with the P1FD5 code active?

While the vehicle may still be drivable, continued use could lead to further damage to the hybrid/EV system. Itâ€™s best to diagnose and repair the issue promptly.

5. How is the P1FD5 code diagnosed?

A technician will use a scan tool to confirm the code, inspect the voltage sensor and related wiring, and test the battery interface control module for proper operation.

6. How do I fix the P1FD5 code on my Chevrolet?

Repairs may involve replacing the faulty voltage sensor, repairing or replacing damaged wiring, or addressing issues with the battery interface control module.

7. Is the P1FD5 code covered under warranty?

Depending on your vehicleâ€™s warranty and age, repairs related to the hybrid/EV system may be covered. Check with your Chevrolet dealership for details.

8. Can a dead 12V auxiliary battery cause the P1FD5 code?

While unlikely, a weak or dead 12V auxiliary battery can sometimes affect hybrid/EV system performance and should be checked as part of the diagnosis.

9. Do I need specialized tools to fix the P1FD5 code?

Yes, diagnosing and repairing this code typically requires a professional-grade scan tool and knowledge of hybrid/EV systems.

10. How much does it cost to fix the P1FD5 code?

The cost varies depending on the underlying issue, with sensor or wiring repairs being less expensive and module or battery replacement being more costly. Repairs can range from $200 to over $1,000.