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P1639 Ford Code - Vehicle ID Block Not Programmed Or Is Corrupt

Quick Answer

When the P1639 Ford trouble code appears, it indicates that the Vehicle ID (VID) block in the Engine Control Module (ECM) has not been programmed correctly or has become corrupted. Common causes include Incorrect Programming: The VID block may not have been programmed correctly during ECM replacement or reprogramming, Corrupted Data: The data stored in the VID block may have become corrupted due to electrical issues or ECM malfunctions, ECM Failure: A malfunctioning ECM can also lead to issues with the VID block data. 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
P1639 Ford indicates Vehicle ID Block Not Programmed Or Is Corrupt .
Common causes
Common causes include Incorrect Programming: The VID block may not have been programmed correctly during ECM replacement or reprogramming, Corrupted Data: The data stored in the VID block may have become corrupted due to electrical issues or ECM malfunctions, ECM Failure: A malfunctioning ECM can also lead to issues with the VID block data.
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.
What is this?
Table of contents Created and updated by William Orellana on Aug 18, 2024
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Code P1639 Ford Description

When the P1639 Ford trouble code appears, it indicates that the Vehicle ID (VID) block in the Engine Control Module (ECM) has not been programmed correctly or has become corrupted. The VID block is a specific area within the ECM that contains crucial information about the vehicle, such as VIN number, calibration IDs, and other data necessary for proper operation. This issue can lead to various problems with the vehicle's performance, as the ECM relies on this information to make decisions regarding engine operation, emissions control, and other critical functions. If left unaddressed, this code can potentially cause the vehicle to run poorly, experience drivability issues, fail emissions tests, or even enter a limp mode where engine power is limited to protect components.

OBDII Code P1639 Ford - Vehicle ID Block Not Programmed Or Is Corrupt
P1639 Ford Code - Vehicle ID Block Not Programmed Or Is Corrupt

Common Causes of P1639 Ford

  1. Incorrect Programming: The VID block may not have been programmed correctly during ECM replacement or reprogramming.
  2. Corrupted Data: The data stored in the VID block may have become corrupted due to electrical issues or ECM malfunctions.
  3. ECM Failure: A malfunctioning ECM can also lead to issues with the VID block data.
  4. Wiring or Connection Problems: Faulty wiring or poor connections between the ECM and other components can disrupt data communication.

Symptoms of P1639 Ford

  1. Check Engine Light: The most obvious symptom of this code is the illumination of the check engine light on the dashboard.
  2. Engine Performance Issues: The vehicle may exhibit poor acceleration, rough idling, or reduced power output.
  3. Emission Problems: The vehicle may fail emissions tests due to improper data in the ECM.
  4. Limp Mode: In severe cases, the vehicle may enter a limp mode where engine power is restricted as a protective measure.

How to Fix P1639 Ford

  1. Diagnostic Scan: Use a diagnostic scanner to retrieve the trouble code and identify the specific issue with the VID block.
  2. Reprogramming: If the VID block data is incorrect, the ECM may need to be reprogrammed with the correct information.
  3. Data Recovery: In cases of corrupted data, attempt to recover or restore the original information in the VID block.
  4. ECM Replacement: If the ECM is faulty and causing the issue, replacing it with a new unit may be necessary.
  5. Wiring Inspection: Check all wiring and connections related to the ECM to ensure there are no faults causing communication issues.

Cost to Fix P1639 Ford

The cost of repairing the P1639 Ford trouble code can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay anywhere from $100 to $500 for the repair, including parts and labor. Keep in mind that rates at dealerships or in metropolitan areas may be higher, while independent shops may offer more affordable prices. It's recommended to get a few quotes from reputable auto repair shops to find the best deal for your situation.

What does this mean?

Tech Notes for P1639 Ford

After a new Powertrain Control Module (PCM) has been installed, the Vehicle Identification (VID) block has to be reprogrammed to the PCM.

There is a Factory Service Bulletin for the following Ford models:
1999-2002 Ford Mustang
2000-2002 Ford Focus
1999-2002 Ford Expedition
1999-2002 Ford F-150
2000-2002 Ford E Series
2001-2002 Ford Explorer
2001-2002 Ford Ranger
Ford Factory Service Bulletin OBDII Code P1639

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Information for Specific Ford Models

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 P1639 Ford Code

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  • Hello, my 2008 ford f250 6.4L diesel popped the code P1639 up after I replaced my transmission and rear end. What could it be? Thanks in advance.

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  • You may have to reprogram (re-flash) the Transmission Control Module (TCM) to recognize the new transmission.

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  • Hello i have a 2015 fokord escape 2.0L awd but my mechanic ask that i change , my vin- 1FMCU9G97UC70513 and the new pcm# is FJ5A-12A650-BA when it was programmed it is give a code P1639 -Failure type 00 can i get help.the old pcm # is J5A-12A650-LA

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