AutoCodes – GMC – P1FA6 GMC

P1FA6 GMC 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 GMC 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 841

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

What does this mean?

What are the Possible Causes of the DTC P1FA6 GMC?

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 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 P1FA6 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 P1FA6 GMC 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 GMC Code

1. What does the OBDII code P1FA6 mean on a GMC vehicle?

P1FA6 indicates that the Hybrid/EV Battery Interface Control Module 5 is not programmed or has incomplete programming.

2. What are the common symptoms of the P1FA6 code?

Symptoms may include a check engine light, reduced hybrid or EV performance, failure to start, or restricted power mode.

3. What causes the P1FA6 code to appear?

The code is typically caused by incomplete programming, a failed software update, or a replacement module that hasnâ€™t been properly programmed.

4. Can I drive my GMC vehicle with a P1FA6 code?

Driving with this code is not recommended, as it can lead to reduced performance or damage to the hybrid/EV battery system.

5. How is the P1FA6 code diagnosed?

A technician uses a diagnostic scanner to verify the code, checks for software updates or programming errors, and inspects the communication with the Battery Interface Control Module 5.

6. How do you fix the P1FA6 code?

The module needs to be reprogrammed or updated using a factory scan tool. If the module is defective, it may need to be replaced and programmed.

7. Can I reprogram the module myself for a P1FA6 code?

Reprogramming typically requires specialized equipment and software only available to dealerships or certified auto repair shops.

8. Is the P1FA6 code specific to GMC vehicles?

While P1FA6 is most commonly associated with GMC hybrid/EV models, it may also apply to other General Motors vehicles with similar systems.

9. How much does it cost to fix a P1FA6 code?

The cost can vary but typically ranges from $150 to $400 for reprogramming, depending on labor rates and whether the module needs replacement.

10. Can a dead 12-volt battery cause the P1FA6 code?

A dead or weak 12-volt battery may contribute to communication or programming issues, so itâ€™s important to ensure the battery is fully charged before diagnosing further.