P16FF Chevrolet 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 Chevrolet 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 Chevrolet Description
What are the Possible Causes of the DTC P16FF Chevrolet?
- 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 Chevrolet?
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 Chevrolet 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 Chevrolet Models
- P16FF 2014 Chevrolet Silverado — Engine Controls Ignition Relay Request Signal Message Counter Incorrect
- P16FF 2015 Chevrolet Silverado — Engine Controls Ignition Relay Request Signal Message Counter Incorrect
- P16FF 2016 Chevrolet Silverado — Engine Controls Ignition Relay Request Signal Message Counter Incorrect
- P16FF 2017 Chevrolet Silverado — Engine Controls Ignition Relay Request Signal Message Counter Incorrect
- P16FF 2018 Chevrolet Silverado — Engine Controls Ignition Relay Request Signal Message Counter Incorrect
Frequently Asked Questions about P16FF Chevrolet Code
1. What does code P16FF mean on a Chevrolet?
Code P16FF indicates an issue with the Engine Controls Ignition Relay Request Signal Message Counter, which means the signal between the ignition relay and the engine control module (ECM) is not functioning properly.
2. What are the common symptoms of a P16FF code?
Common symptoms include difficulty starting the engine, intermittent engine stalling, reduced engine performance, or the check engine light being illuminated.
3. What causes the P16FF code to appear?
The P16FF code can be caused by a faulty ignition relay, wiring or connection issues in the ignition relay circuit, a malfunctioning engine control module (ECM), or software-related issues.
4. Can I still drive my car with a P16FF code?
While the vehicle may still be drivable, it could experience performance problems or stalling. It’s recommended to address the issue promptly to avoid further damage or unsafe driving conditions.
5. How do I diagnose the P16FF code?
Diagnosing the P16FF code typically involves using an OBDII scanner to confirm the code, inspecting the ignition relay and associated wiring for damage or loose connections, and testing the ECM for proper operation.
6. How can I fix the P16FF code?
Fixing the P16FF code may include replacing a faulty ignition relay, repairing damaged wiring, cleaning or tightening electrical connections, or updating/replacing the ECM if necessary.
7. Is the P16FF code a serious issue?
While it may not immediately disable the vehicle, the P16FF code can lead to performance problems or stalling, which can compromise safety. It should be addressed as soon as possible.
8. How much does it cost to repair a P16FF code?
Repair costs can vary depending on the cause of the issue. Replacing an ignition relay typically costs $50-$100, while ECM repairs or replacements can range from $300-$1,000 or more.
9. Can a software update fix the P16FF code?
In some cases, a software update for the ECM may resolve the P16FF code if the issue is related to programming errors or compatibility problems.
10. What tools are needed to troubleshoot the P16FF code?
To troubleshoot the P16FF code, you’ll need an OBDII scanner, a multimeter to test electrical connections, and possibly wiring diagrams for the ignition relay circuit.
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