AutoCodes – Chevrolet – P1FDA Chevrolet

P1FDA Chevrolet 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 Chevrolet 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 1,015

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

1. What does the OBDII code P1FDA mean on a Chevrolet vehicle?

The P1FDA code indicates a "Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit Low Voltage," which means thereâ€™s a low voltage issue detected in the specific voltage sensor circuit tied to the hybrid or EV battery interface.

2. What are the common symptoms of the P1FDA code?

Symptoms may include reduced hybrid or EV performance, illuminated check engine light, limited acceleration, warning messages on the dashboard, or the vehicle entering limp mode.

3. What causes the P1FDA code to appear?

Common causes include a faulty voltage sensor, damaged wiring or connectors in the sensor circuit, a malfunctioning Hybrid/EV Battery Interface Control Module, or issues with the hybrid battery itself.

4. Can I still drive my Chevrolet with the P1FDA code?

While the vehicle may still be drivable, it could experience reduced performance or safety features. Itâ€™s best to address the issue promptly to avoid further damage or potential system failures.

5. How is the P1FDA code diagnosed?

A technician will use a scan tool to confirm the code, inspect the voltage sensor and its wiring for damage, and test the Hybrid/EV Battery Interface Control Module for faults.

6. How do you fix the P1FDA code on a Chevrolet?

Repairs may involve replacing a faulty voltage sensor, repairing or replacing damaged wiring, updating or reprogramming the control module, or addressing issues with the hybrid battery system.

7. Is the P1FDA code specific to Chevrolet hybrid or EV models?

Yes, this code is typically specific to Chevrolet hybrid or EV models equipped with a Hybrid/EV Battery Interface Control Module.

8. Can a low-voltage hybrid battery cause the P1FDA code?

Yes, a low or failing hybrid battery can contribute to triggering the P1FDA code if it affects the voltage sensor circuit.

9. How much does it cost to repair the P1FDA code?

Repair costs can vary but may range from $200 to $1,500+ depending on whether the issue involves sensor replacement, wiring repairs, or battery/module replacement.

10. Can a software update fix the P1FDA code?

In some cases, a software update or reprogramming of the Hybrid/EV Battery Interface Control Module can resolve the issue if itâ€™s related to a firmware glitch.