AutoCodes – GMC – P1FD5 GMC

P1FD5 GMC Code - Hybrid/EV Battery Interface Control Module 1 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: P1FD5 GMC indicates Hybrid/EV Battery Interface Control Module 1 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 764

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 P1FD5 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 P1FD5 GMC - Hybrid/EV Battery Interface Control Module 1 Voltage Sensor Circuit Low Voltage - AutoCodes.com — P1FD5 GMC Code - Hybrid/EV Battery Interface Control Module 1 Voltage Sensor Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1FD5 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 P1FD5 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 P1FD5 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.

Need more information about the P1FD5 GMC code?

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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 P1FD5 GMC Code

1. What are the common symptoms of OBDII code P1FD5 GMC?

- Common symptoms of this code may include poor fuel efficiency, reduced power, difficulty starting the vehicle, and the illumination of the check engine light.

2. What can cause the Hybrid/EV Battery Interface Control Module 1 Voltage Sensor Circuit to have low voltage?

- The low voltage in the Hybrid/EV Battery Interface Control Module 1 Voltage Sensor Circuit can be caused by issues such as a faulty voltage sensor, damaged wiring, or a problem with the battery itself.

3. How serious is the P1FD5 GMC trouble code?

- While the severity of the code can vary, it is important to address it promptly to prevent further damage to the hybrid or electric vehicle system.

4. Can I continue driving with the P1FD5 GMC fault code?

- It is not recommended to continue driving with this fault code present, as it can lead to poor vehicle performance and potential safety hazards.

5. What are some DIY repair tips for addressing code P1FD5 GMC?

- DIY repair tips may include checking the battery connections, inspecting the wiring for any damage, and resetting the fault code using an OBDII scanner.

6. How can I diagnose the cause of the low voltage in the Hybrid/EV Battery Interface Control Module 1?

- Diagnosing the cause may involve conducting a thorough inspection of the battery, voltage sensor, and wiring, as well as performing voltage tests to pinpoint the issue.

7. Is it safe to reset the P1FD5 GMC code without addressing the underlying issue?

- While resetting the code may temporarily turn off the check engine light, it is crucial to address the root cause of the problem to prevent future issues.

8. What are the potential risks of ignoring the P1FD5 GMC fault code?

- Ignoring the fault code can lead to decreased fuel efficiency, battery issues, and potential system malfunctions in the hybrid or electric vehicle.

9. How much does it typically cost to repair the Hybrid/EV Battery Interface Control Module 1 Voltage Sensor Circuit low voltage issue?

- The cost of repair can vary depending on the exact cause of the problem, but it may involve expenses for parts replacement, labor, and diagnostic fees.

10. Are there any recalls or technical service bulletins related to the P1FD5 GMC trouble code?

- It is recommended to check with the manufacturer or authorized service centers for any recalls or technical service bulletins related to this specific fault code.