P16FF GMC Code - Engine Controls Ignition Relay Request Signal Message Counter Incorrect
Quick Answer
Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Common causes include Faulty Engine Controls Ignition Relay, Engine Controls Ignition Relay harness is open or shorted, Engine Controls Ignition Relay 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
- P16FF GMC indicates Engine Controls Ignition Relay Request Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty Engine Controls Ignition Relay, Engine Controls Ignition Relay harness is open or shorted, Engine Controls Ignition Relay 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.
Code P16FF GMC Description
What are the Possible Causes of the DTC P16FF GMC?
- Faulty Engine Controls Ignition Relay
- Engine Controls Ignition Relay harness is open or shorted
- Engine Controls Ignition Relay circuit poor electrical connection
How to Fix the DTC P16FF GMC?
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 P16FF GMC 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.
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Information for Specific GMC Models
- P16FF 2014 GMC Sierra — Engine Controls Ignition Relay Request Signal Message Counter Incorrect
- P16FF 2015 GMC Sierra — Engine Controls Ignition Relay Request Signal Message Counter Incorrect
- P16FF 2016 GMC Sierra — Engine Controls Ignition Relay Request Signal Message Counter Incorrect
- P16FF 2017 GMC Sierra — Engine Controls Ignition Relay Request Signal Message Counter Incorrect
- P16FF 2018 GMC Sierra — Engine Controls Ignition Relay Request Signal Message Counter Incorrect
Frequently Asked Questions about P16FF GMC Code
1. What are the common symptoms of OBDII code P16FF GMC?
- Common symptoms include engine misfires, rough idling, stalling, and the Check Engine Light being illuminated.
2. What can cause the OBDII code P16FF GMC to trigger?
- This code is typically triggered by a faulty ignition relay, wiring issues, or a problem with the engine control module.
3. How serious is the OBDII code P16FF GMC?
- This code should be addressed promptly as it can lead to engine performance issues and potential damage if left unresolved.
4. How do I diagnose the OBDII code P16FF GMC?
- Diagnosing this code involves using a diagnostic scanner to read the code, checking the ignition relay, inspecting wiring connections, and testing the engine control module.
5. Can I continue driving with the OBDII code P16FF GMC present?
- It's not recommended to continue driving with this code active, as it can affect engine performance and potentially lead to further issues.
6. How can I repair the OBDII code P16FF GMC?
- Repairing this code may involve replacing the faulty ignition relay, repairing any damaged wiring, or reprogramming the engine control module.
7. Is it possible to reset the OBDII code P16FF GMC without fixing the underlying issue?
- While you can clear the code with a diagnostic scanner, it will likely return if the root cause of the problem is not addressed.
8. Can a DIY enthusiast fix the OBDII code P16FF GMC?
- Depending on your mechanical skills and access to tools, some DIY enthusiasts may be able to address this code by replacing the ignition relay or checking wiring connections.
9. How much does it cost to repair the OBDII code P16FF GMC at a mechanic?
- The cost of repairing this code can vary depending on the specific issue, but it may range from $100 to $300 or more at a mechanic's shop.
10. How long does it take to fix the OBDII code P16FF GMC?
- The repair time for this code can vary based on the exact cause of the issue, but it may take anywhere from 1 to 3 hours to diagnose and fix the problem.
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