AutoCodes – Cadillac – P1FAB Cadillac

P1FAB Cadillac Code - Hybrid/EV Battery Interface Control Module 10 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: P1FAB Cadillac indicates Hybrid/EV Battery Interface Control Module 10 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 808

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1FAB Cadillac 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 P1FAB Cadillac - Hybrid/EV Battery Interface Control Module 10 Not Programmed - AutoCodes.com — P1FAB Cadillac Code - Hybrid/EV Battery Interface Control Module 10 Not Programmed

What does this mean?

What are the Possible Causes of the DTC P1FAB Cadillac?

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 P1FAB Cadillac?

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 P1FAB Cadillac 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 P1FAB Cadillac code?

Need more information on how to fix the P1FAB Cadillac code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1FAB Cadillac code diagnosed by a professional: Find a repair shop in your area

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 P1FAB Cadillac Code

1. What does the OBDII code P1FAB mean on a Cadillac?

The P1FAB code indicates that the Hybrid/EV Battery Interface Control Module 10 is not programmed or has lost its programming.

2. What are the symptoms of code P1FAB on a Cadillac?

Common symptoms include a check engine light, reduced hybrid/EV functionality, limited or no electric drive power, and possible warning messages on the dashboard.

3. What causes the P1FAB code to appear?

This code is typically caused by a software issue, improper programming of the control module, or a failed attempt to reprogram the Hybrid/EV Battery Interface Control Module 10.

4. Can I drive my Cadillac with the P1FAB code?

Driving may be possible, but the vehicleâ€™s hybrid/EV system may not function properly, leading to reduced performance or efficiency. Itâ€™s best to address the issue promptly.

5. How is the P1FAB code diagnosed?

A technician will use a diagnostic scan tool to verify the code, check the programming status of the module, and ensure there are no other related errors or communication issues.

6. How do you fix the P1FAB code on a Cadillac?

The primary fix is to reprogram or update the software for the Hybrid/EV Battery Interface Control Module 10 using a GM-approved scan tool.

7. Is the P1FAB code related to a hardware failure?

Not directly. This code typically points to a programming issue rather than a physical hardware failure, though the module itself may need replacement if reprogramming fails.

8. What tools are needed to fix the P1FAB code?

A GM Tech 2 or similar factory-approved scan tool is required to reprogram the control module and clear the code.

9. Can a P1FAB code reset itself?

No, the code will not reset itself. It requires proper reprogramming of the Hybrid/EV Battery Interface Control Module 10 to resolve the issue.

10. Is the P1FAB code covered under warranty?

It depends on your vehicleâ€™s warranty coverage. If the vehicle is under warranty, the programming or module replacement may be covered. Check with your dealership for details.