AutoCodes – Buick – P1FDA Buick

P1FDA Buick Code - Hybrid/EV Battery Interface Control Module 6 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: P1FDA Buick indicates Hybrid/EV Battery Interface Control Module 6 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 745

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 P1FDA Buick 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 P1FDA Buick - Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage - AutoCodes.com — P1FDA Buick Code - Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1FDA Buick?

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 P1FDA Buick?

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 P1FDA Buick 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 P1FDA Buick Code

1. What are the common symptoms of OBDII code P1FDA Buick related to the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage?

- Common symptoms may include poor hybrid system performance, decreased fuel efficiency, and potential stalling or starting issues.

2. What are the possible causes of OBDII code P1FDA Buick indicating the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage?

- Possible causes can include a faulty voltage sensor, wiring issues, low battery voltage, or problems with the hybrid battery interface control module.

3. How can I diagnose the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage issue related to OBDII code P1FDA Buick?

- Diagnosing the problem may involve using a scan tool to read the code, inspecting the voltage sensor and its connections, and checking the hybrid battery system for any abnormalities.

4. What are some repair tips for addressing OBDII code P1FDA Buick associated with the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage?

- Repair tips may include testing and replacing the faulty voltage sensor, repairing any damaged wiring, ensuring proper battery voltage levels, and resetting the fault code after repairs.

5. Can driving with OBDII code P1FDA Buick triggered by the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage cause further damage?

- Continuing to drive with this fault code may lead to decreased hybrid system efficiency, potential battery issues, and worsened performance over time, so it's best to address the problem promptly.

6. How much does it typically cost to repair OBDII code P1FDA Buick related to the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage?

- The repair costs can vary depending on the specific issue, but it may involve labor costs for diagnosis and repair, as well as potential part replacement expenses.

7. Is it safe to continue driving my Buick with the OBDII code P1FDA indicating the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage?

- While it may be safe to drive for a short distance to reach a repair facility, it's generally not recommended to continue driving long-term with this issue to prevent further damage to the hybrid system.

8. Are there any preventative maintenance steps I can take to avoid encountering OBDII code P1FDA Buick related to the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage?

- Regularly checking the hybrid system components, monitoring battery health, and addressing any warning signs promptly can help prevent issues leading to this fault code.

9. Can a DIY enthusiast with automotive knowledge repair OBDII code P1FDA Buick linked to the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage?

- Depending on the individual's skills and access to tools, a knowledgeable DIY enthusiast may be able to diagnose and repair simpler issues related to this fault code, but more complex problems may require professional assistance.

10. How long does it typically take to repair OBDII code P1FDA Buick associated with the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage?

- The repair time can vary based on the specific issue and the extent of repairs needed, but it may range from a few hours to a full day in some cases, including diagnosis and part replacement.