Engine-CodesGeneric – P1BFF

P1BFF Code - Auxiliary Transmission Fluid Pump Motor Control Module Not Programmed

Quick Answer

The P1BFF diagnostic trouble code indicates that the Auxiliary Transmission Fluid Pump Motor Control Module is not programmed correctly. Common causes include Incorrect programming of the control module, Software glitches in the module, Electrical issues affecting communication with the module. 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
P1BFF indicates Auxiliary Transmission Fluid Pump Motor Control Module Not Programmed.
Common causes
Common causes include Incorrect programming of the control module, Software glitches in the module, Electrical issues affecting communication with the module.
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.
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P1BFF Description

The P1BFF diagnostic trouble code indicates that the Auxiliary Transmission Fluid Pump Motor Control Module is not programmed correctly. This module is responsible for controlling the auxiliary transmission fluid pump motor, which plays a crucial role in maintaining proper fluid pressure in the transmission system. When this module is not programmed correctly, it can lead to issues with the transmission's performance and efficiency.

OBDII Code P1BFF - Auxiliary Transmission Fluid Pump Motor Control Module Not Programmed
P1BFF Code - Auxiliary Transmission Fluid Pump Motor Control Module Not Programmed

Common Causes of P1BFF

  1. Incorrect programming of the control module
  2. Software glitches in the module
  3. Electrical issues affecting communication with the module
  4. Faulty installation or replacement of the control module
  5. Wiring harness issues causing poor connection to the module

Symptoms of P1BFF

  1. Harsh shifting between gears
  2. Delayed engagement when shifting
  3. Transmission slipping
  4. Overheating transmission
  5. Transmission warning light illuminated on the dashboard

How to Fix P1BFF

  1. Use a diagnostic scan tool to retrieve the trouble codes and verify the issue with the auxiliary transmission fluid pump motor control module.
  2. Inspect the wiring harness and connections to ensure they are secure and free of damage.
  3. Check for any software updates or reprogramming needed for the control module.
  4. If necessary, replace the control module with a correctly programmed unit.
  5. Clear the trouble codes and perform a test drive to ensure the issue has been resolved.

Cost to Fix P1BFF

The typical repair costs for addressing the P1BFF code can range from $200 to $500, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is recommended to check with local auto repair shops for a more accurate estimate. Keep in mind that rates may be higher in metropolitan areas or at dealerships, while independent shops may offer more affordable prices.

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Code P1BFF Information for Specific Makes

  • P1BFF Buick — Auxiliary Transmission Fluid Pump Motor Control Module Not Programmed
  • P1BFF Cadillac — Auxiliary Transmission Fluid Pump Motor Control Module Not Programmed
  • P1BFF Chevrolet — Auxiliary Transmission Fluid Pump Motor Control Module Not Programmed
  • P1BFF GMC — Auxiliary Transmission Fluid Pump Motor Control Module Not Programmed
  • P1BFF Saturn — Auxiliary Transmission Fluid Pump Motor Control Module Not Programmed
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 P1BFF Code

1. What does OBDII code P1BFF mean?

P1BFF indicates that the Auxiliary Transmission Fluid Pump Motor Control Module is not programmed correctly or lacks proper calibration.

2. What are the symptoms of code P1BFF?

Symptoms may include a check engine light, reduced transmission performance, or the vehicle going into limp mode.

3. What causes code P1BFF?

The code is typically caused by an unprogrammed or incorrectly programmed Auxiliary Transmission Fluid Pump Motor Control Module, often after a module replacement or software update.

4. Can I drive with code P1BFF?

Driving with this code may lead to reduced transmission performance and potential long-term damage, so it’s best to address it promptly.

5. How is code P1BFF diagnosed?

A technician will use a scan tool to confirm the code and check if the module programming is missing or corrupted.

6. How is code P1BFF fixed?

The control module needs to be reprogrammed or updated using the manufacturer’s software and tools.

7. Does code P1BFF require replacing the transmission fluid pump?

Not necessarily. The issue typically lies with the programming of the control module, not the physical pump.

8. Can a dead battery cause code P1BFF?

A dead or disconnected battery can sometimes reset control module settings, but the code usually occurs after a module replacement.

9. Is code P1BFF specific to any vehicle make or model?

This code is generally associated with vehicles using an auxiliary transmission fluid pump, typically in hybrid or electric models.

10. How much does it cost to fix code P1BFF?

Repair costs vary but usually involve labor for reprogramming, which may range from $100 to $300 depending on the dealership or repair shop.

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