Engine-CodesBuick – P16FF Buick

P16FF Buick Code - Engine Controls Ignition Relay Request Signal Message Counter Incorrect

Quick Answer

The P16FF Buick code indicates that there is an issue with the Engine Controls Ignition Relay Request Signal Message Counter. Common causes include Faulty ignition relay, Wiring issues or loose connections, Malfunctioning engine control module (ECM). 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
P16FF Buick indicates Engine Controls Ignition Relay Request Signal Message Counter Incorrect.
Common causes
Common causes include Faulty ignition relay, Wiring issues or loose connections, Malfunctioning engine control module (ECM).
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 P16FF Buick Description

The P16FF Buick code indicates that there is an issue with the Engine Controls Ignition Relay Request Signal Message Counter. This means that the signal counter for the ignition relay request is not within the expected range, causing a discrepancy in the communication between the engine control module (ECM) and the ignition relay. This can lead to a variety of performance issues within the vehicle.

OBDII Code P16FF Buick - Engine Controls Ignition Relay Request Signal Message Counter Incorrect
P16FF Buick Code - Engine Controls Ignition Relay Request Signal Message Counter Incorrect

Common Causes of P16FF Buick

  1. Faulty ignition relay
  2. Wiring issues or loose connections
  3. Malfunctioning engine control module (ECM)
  4. Electrical system issues
  5. Software glitches or programming errors

Symptoms of P16FF Buick

  1. Difficulty starting the engine
  2. Rough idling or engine misfires
  3. Engine stalling
  4. Decreased fuel efficiency
  5. Check Engine Light illuminated

How to Fix P16FF Buick

  1. Diagnose the exact cause of the issue by using a diagnostic scanner to retrieve the trouble codes and perform a thorough inspection of the ignition system.
  2. Check the wiring and connections related to the ignition relay and ECM for any signs of damage or corrosion.
  3. Test the ignition relay for proper functionality and replace it if necessary.
  4. Reset the ECM and reprogram it to ensure proper communication with the ignition relay.
  5. Clear the trouble codes and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P16FF Buick

The typical repair costs for addressing the P16FF Buick code can vary depending on the specific cause of the issue and the labor rates in your area. On average, the repair for this code may range from $200 to $500, including parts and labor. It's important to consider that diagnostic time and labor rates at auto repair shops can fluctuate, so it's recommended to obtain quotes from different service providers to get a more accurate estimate.

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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.

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