AutoCodes – Buick – P1FAF Buick

P1FAF Buick Code - Hybrid/EV Battery Interface Control Module 9 Read Only Memory Performance

Quick Answer

The Hybrid/EV Battery Interface Control Module will diagnose its own systems and determine when a fault condition is present. 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: P1FAF Buick indicates Hybrid/EV Battery Interface Control Module 9 Read Only Memory Performance.
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 722

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 P1FAF Buick Description

The Hybrid/EV Battery Interface Control Module will diagnose its own systems and determine when a fault condition is present. This diagnostic applies to internal microprocessor integrity conditions within the Hybrid/EV Battery Interface Control Module. This fault is internal to the Hybrid/EV Battery Interface Control Module and no external circuits are involved.

OBDII Code P1FAF Buick - Hybrid/EV Battery Interface Control Module 9 Read Only Memory Performance - AutoCodes.com — P1FAF Buick Code - Hybrid/EV Battery Interface Control Module 9 Read Only Memory Performance

What does this mean?

What are the Possible Causes of the DTC P1FAF Buick?

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 P1FAF 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 P1FAF 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 P1FAF 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 P1FAF Buick Code

1. What does the OBDII code P1FAF mean for a Buick?

The P1FAF code indicates a performance issue with the Hybrid/EV Battery Interface Control Module 9â€™s read-only memory (ROM).

2. What are the common symptoms of the P1FAF code?

Symptoms may include an illuminated check engine light, reduced hybrid/EV performance, decreased fuel efficiency, or limited driving range.

3. What causes the P1FAF code to appear?

Common causes include corrupted firmware in the control module, internal module failure, or electrical issues such as poor connections or damaged wiring.

4. Can the P1FAF code cause drivability issues?

Yes, it can lead to reduced performance of the hybrid or EV system, potentially impacting acceleration or power delivery.

5. How is the P1FAF code diagnosed?

A technician will use a professional scan tool to confirm the code, check for related codes, inspect wiring and connectors, and test the control moduleâ€™s functionality.

6. Can I clear the P1FAF code by disconnecting the battery?

Disconnecting the battery may temporarily clear the code, but if the underlying issue is not resolved, the code will likely return.

7. How do you fix the P1FAF code on a Buick?

Repairs may involve reprogramming or replacing the Hybrid/EV Battery Interface Control Module 9, repairing wiring, or addressing firmware issues.

8. Is it safe to drive with the P1FAF code present?

Driving may still be possible, but itâ€™s not recommended as it could lead to further damage or reduced hybrid/EV system performance.

9. How much does it cost to repair the P1FAF code?

Repair costs vary but may range from $300 to $1,000 depending on whether the issue requires reprogramming or replacing the control module.

10. Can I fix the P1FAF code myself?

While repairing wiring is possible for experienced DIYers, diagnosing and reprogramming the control module typically requires specialized tools and expertise.