AutoCodes – Buick – P1FA6 Buick

P1FA6 Buick Code - Hybrid/EV Battery Interface Control Module 5 Not Programmed

Quick Answer

When the Battery Energy Control Module is flash programmed, the Hybrid/EV Battery Interface Control Module operating software and calibrations are provided to the Battery Energy Control Module. Common causes include Reprogram Hybrid/EV Battery Interface Control Module, Faulty Hybrid/EV Battery Interface Control Module, Hybrid/EV Battery Interface Control Module harness is open or shorted. 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: P1FA6 Buick indicates Hybrid/EV Battery Interface Control Module 5 Not Programmed.
Common causes: Common causes include Reprogram Hybrid/EV Battery Interface Control Module, Faulty Hybrid/EV Battery Interface Control Module, Hybrid/EV Battery Interface Control Module harness is open or shorted.
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 787

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 P1FA6 Buick Description

When the Battery Energy Control Module is flash programmed, the Hybrid/EV Battery Interface Control Module operating software and calibrations are provided to the Battery Energy Control Module. The Hybrid/EV Battery Interface Control Module software and calibrations are then loaded to each of the Hybrid/EV Battery Interface Control Modules from the Battery Energy Control Module. This operation is automatic and requires no operator action. At this point, if any of the Hybrid/EV Battery Interface Control Modules are not programmed correctly, the appropriate DTC is set.
This fault is internal to the Hybrid/EV Battery Interface Control Modules and no external circuits are involved.

OBDII Code P1FA6 Buick - Hybrid/EV Battery Interface Control Module 5 Not Programmed - AutoCodes.com — P1FA6 Buick Code - Hybrid/EV Battery Interface Control Module 5 Not Programmed

What does this mean?

What are the Possible Causes of the DTC P1FA6 Buick?

Reprogram Hybrid/EV Battery Interface Control Module
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 P1FA6 Buick?

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 P1FA6 Buick 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 P1FA6 Buick code?

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Need Help with the 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 P1FA6 Buick Code

1. What does the OBDII code P1FA6 mean for a Buick?

The P1FA6 code indicates that the Hybrid/EV Battery Interface Control Module 5 is not programmed or lacks proper calibration.

2. What are the symptoms of the P1FA6 code in a Buick?

Symptoms may include a check engine light, reduced EV or hybrid performance, and limited charging or discharging functionality of the battery system.

3. What causes the P1FA6 code to appear?

The primary cause is a missing or incorrect software calibration in the Hybrid/EV Battery Interface Control Module 5.

4. How do you fix the P1FA6 code on a Buick?

Reprogramming or updating the Hybrid/EV Battery Interface Control Module 5 with the correct software using a GM-approved scan tool is required to resolve this code.

5. Can I drive my Buick with the P1FA6 code active?

Driving is possible, but it is not recommended as it may lead to reduced fuel efficiency, limited hybrid/EV functionality, or further damage to the battery system.

6. Is the P1FA6 code a serious issue?

Yes, it can be serious because it affects the functionality of the hybrid/EV system and can compromise vehicle performance and efficiency.

7. How much does it cost to fix the P1FA6 code?

The cost varies, but reprogramming the module typically ranges from $150 to $300, depending on dealership rates and labor charges.

8. Can I fix the P1FA6 code on my Buick myself?

DIY fixes are not recommended as reprogramming the module requires specialized tools and access to GM's software database.

9. What tools are needed to fix the P1FA6 code?

A GM-approved scan tool and access to GMâ€™s programming software are required to reprogram the module.

10. Will disconnecting the battery clear the P1FA6 code?

No, disconnecting the battery will not clear this code as the issue involves missing or incorrect programming, which requires reprogramming to resolve.