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P1FDA Cadillac 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 Cadillac 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 867

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

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 Cadillac?

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 Cadillac 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 Cadillac Code

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

- Common symptoms may include reduced hybrid/EV system performance, illuminated warning lights on the dashboard, and potential issues with battery charging.

2. What are some possible causes of the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage error code in a Cadillac?

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

3. How can I diagnose the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage issue in my Cadillac?

- Diagnosis typically involves using an OBDII scanner to retrieve the specific error code, checking the voltage sensor and related wiring for damage or corrosion, and testing the battery voltage levels.

4. Is it safe to continue driving my Cadillac with the P1FDA code related to the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage?

- It is not recommended to drive the vehicle extensively with this code present, as it can lead to further damage to the hybrid/EV system. It's best to have the issue diagnosed and repaired promptly.

5. Can I repair the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage issue in my Cadillac myself?

- While some experienced DIYers may be able to address simple wiring or connector issues, diagnosing and repairing problems related to the hybrid/EV system typically requires specialized knowledge and equipment. It's advisable to consult a professional technician.

6. How much does it cost to repair the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage problem in a Cadillac?

- Repair costs can vary depending on the exact cause of the issue and labor rates in your area. It's recommended to obtain diagnostic information from a qualified technician to get an accurate estimate.

7. Can a low battery voltage trigger the OBDII code P1FDA in a Cadillac Hybrid/EV?

- Yes, low battery voltage can be a contributing factor to the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage error code. Ensuring the battery is in good condition is important for the proper functioning of the hybrid/EV system.

8. Will resetting the OBDII code P1FDA related to the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage make the issue go away?

- Resetting the code may temporarily clear the warning lights, but if the underlying issue is not addressed, the code is likely to reappear. It's crucial to diagnose and fix the root cause of the problem.

9. How long does it typically take to repair the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage issue in a Cadillac?

- Repair times can vary based on the complexity of the problem and the availability of parts. Simple fixes may take a few hours, while more involved repairs could require a day or more.

10. Are there any preventive maintenance steps I can take to avoid the OBDII code P1FDA related to the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage in my Cadillac?

- Regularly checking the battery health, keeping the electrical system well-maintained, and addressing any warning lights promptly can help prevent issues leading to this error code.