AutoCodes – Generic – P1FDA

P1FDA 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 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 1,215

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

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?

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 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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Information for Specific Makes

P1FDA Buick — Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage
P1FDA Cadillac — Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage
P1FDA Chevrolet — Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage
P1FDA GMC — Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage
P1FDA Saturn — Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage

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 Code

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

- Common symptoms include illuminated Check Engine light, reduced hybrid system performance, and potential difficulties starting the vehicle.

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

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

3. How can I diagnose the cause of OBDII code P1FDA associated with the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage?

- Diagnosis typically involves using a scan tool to retrieve the code, testing the voltage sensor and related components, inspecting wiring for damage, and checking the battery voltage levels.

4. Can I continue driving my vehicle with OBDII code P1FDA triggered by the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage?

- It is not recommended to continue driving the vehicle with this code active, as it can lead to further damage to the hybrid system and potentially cause safety issues.

5. How can I repair OBDII code P1FDA related to the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage?

- Repair methods may involve replacing the faulty voltage sensor, repairing damaged wiring, ensuring proper battery voltage, or seeking professional assistance for advanced diagnostics and repairs.

6. Are there any DIY tips for addressing OBDII code P1FDA associated with the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage?

- DIY tips may include checking and cleaning connectors, ensuring proper battery connections, and conducting basic voltage tests if you have the necessary tools and skills.

7. Can weather conditions affect the occurrence of OBDII code P1FDA linked to the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage?

- Extreme weather conditions, such as very low temperatures, can potentially impact the performance of the hybrid/EV battery system and trigger voltage-related issues leading to this code.

8. Is it advisable to reset the OBDII code P1FDA associated with the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage without addressing the underlying problem?

- Simply clearing the code without addressing the root cause is not recommended, as the issue may persist and trigger the code again, potentially causing more severe problems over time.

9. How can regular maintenance help prevent OBDII code P1FDA related to the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage?

- Regular maintenance, such as checking battery health, ensuring proper charging system operation, and addressing any warning signs promptly, can help prevent issues leading to this code.

10. Are there any recalls or technical service bulletins related to OBDII code P1FDA and the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage?

- It is advisable to check with the vehicle manufacturer or authorized service centers for any recalls or technical service bulletins related to this specific OBDII code and associated components.