AutoCodes – GMC – P1FD6 GMC

P1FD6 GMC Code - Hybrid/EV Battery Interface Control Module 2 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: P1FD6 GMC indicates Hybrid/EV Battery Interface Control Module 2 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 925

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 P1FD6 GMC 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 P1FD6 GMC - Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Circuit Low Voltage - AutoCodes.com — P1FD6 GMC Code - Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1FD6 GMC?

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 P1FD6 GMC?

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 P1FD6 GMC 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 P1FD6 GMC Code

1. What are the common symptoms of OBDII code P1FD6 in a GMC related to the Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Circuit Low Voltage?

- Common symptoms include decreased fuel efficiency, loss of power, and potential issues with the hybrid or electric propulsion system.

2. What are the possible causes of OBDII code P1FD6 GMC indicating a Low Voltage Sensor Circuit in the Hybrid/EV Battery Interface Control Module 2?

- The main causes can be a faulty battery voltage sensor, damaged wiring in the circuit, or issues with the Hybrid/EV Battery Interface Control Module 2 itself.

3. How serious is OBDII code P1FD6 related to the Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Circuit Low Voltage in a GMC?

- This code should be addressed promptly as it can affect the performance and efficiency of the hybrid or electric system in the vehicle.

4. Can driving with OBDII code P1FD6 GMC indicating a Low Voltage Sensor Circuit issue cause further damage?

- Continuing to drive with this code may lead to increased stress on the hybrid or electric components, potentially causing more severe damage over time.

5. What are some DIY repair tips for fixing OBDII code P1FD6 in a GMC related to the Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Circuit Low Voltage?

- DIY repair tips include checking and cleaning the battery voltage sensor connections, inspecting the wiring for any damage, and ensuring the Hybrid/EV Battery Interface Control Module 2 is functioning correctly.

6. How can a mechanic diagnose OBDII code P1FD6 GMC indicating a Low Voltage Sensor Circuit issue in the Hybrid/EV Battery Interface Control Module 2?

- A mechanic can use a diagnostic scanner to retrieve the code, perform a visual inspection of the components involved, and conduct voltage tests to pinpoint the exact cause of the issue.

7. Is it safe to reset the OBDII code P1FD6 without addressing the underlying problem in a GMC Hybrid/EV vehicle?

- It is not recommended to simply reset the code without investigating and fixing the root cause, as the issue can persist and potentially lead to more significant problems in the future.

8. How much does it typically cost to repair OBDII code P1FD6 related to the Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Circuit Low Voltage in a GMC?

- The cost of repair can vary depending on the exact cause of the issue, but it may involve replacing the battery voltage sensor, repairing wiring, or addressing problems with the Hybrid/EV Battery Interface Control Module 2.

9. Can extreme weather conditions impact the occurrence of OBDII code P1FD6 GMC indicating a Low Voltage Sensor Circuit issue in a hybrid or electric vehicle?

- Yes, extreme temperatures can affect the performance of the battery voltage sensor and other components, potentially leading to the triggering of this code.

10. How frequently should the Hybrid/EV Battery Interface Control Module 2 Voltage Sensor Circuit be inspected to prevent OBDII code P1FD6 in a GMC?

- Regular maintenance checks, especially during scheduled service intervals, can help catch potential issues with the voltage sensor circuit early and prevent the occurrence of this code.