P1100 2016 Chevrolet Silverado Code - Fuel Level Sensor 2 Signal Message Counter Incorrect
Quick Answer
The signal circuit is connected to the Fuel Pump Driver Control Module, and the Fuel Pump Driver Control Module communicates with the Engine Control Module (ECM) via serial data. Common causes include Faulty Fuel Pump Driver Control Module, Fuel Pump Driver Control Module harness is open or shorted, Fuel Pump Driver Control Module 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
- P1100 2016 Chevrolet Silverado indicates Fuel Level Sensor 2 Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty Fuel Pump Driver Control Module, Fuel Pump Driver Control Module harness is open or shorted, Fuel Pump Driver Control Module 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 P1100 2016 Chevrolet Silverado Description
What are the Possible Causes of the DTC P1100 2016 Chevrolet Silverado?
- Faulty Fuel Pump Driver Control Module
- Fuel Pump Driver Control Module harness is open or shorted
- Fuel Pump Driver Control Module circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P1100 2016 Chevrolet Silverado?
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 P1100 2016 Chevrolet Silverado 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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Frequently Asked Questions about P1100 2016 Chevrolet Silverado Code
1. What does the OBDII code P1100 mean on a 2016 Chevrolet Silverado?
P1100 indicates an issue with the Fuel Level Sensor 2 Signal Message Counter, suggesting that the signal from the secondary fuel level sensor is incorrect or inconsistent.
2. What are the common symptoms of code P1100 in a 2016 Chevrolet Silverado?
Common symptoms include erratic or incorrect fuel level readings, the fuel gauge not working, or the check engine light being illuminated.
3. What causes the P1100 code to appear in a 2016 Chevrolet Silverado?
The code can be triggered by a faulty secondary fuel level sensor, wiring issues, a malfunctioning fuel pump module, or a problem in the vehicle’s Powertrain Control Module (PCM).
4. Can I continue driving my 2016 Chevrolet Silverado with a P1100 code?
While the truck may still be drivable, it’s recommended to address the issue promptly, as inaccurate fuel readings could lead to running out of fuel unexpectedly.
5. How is the P1100 code diagnosed in a 2016 Chevrolet Silverado?
A mechanic will use a scan tool to verify the code, inspect the fuel level sensor wiring, check for proper voltage signals, and test the functionality of the fuel level sensor.
6. How do I fix the P1100 code on my 2016 Chevrolet Silverado?
Repairs may include replacing the faulty fuel level sensor, repairing or replacing damaged wiring, or reprogramming or replacing the PCM if necessary.
7. How much does it cost to repair a P1100 code on a 2016 Chevrolet Silverado?
Repair costs vary but typically range from $150 to $500, depending on whether the issue is with the sensor, wiring, or PCM.
8. Can a bad fuel pump cause the P1100 code?
While the fuel pump itself is not the direct cause, issues with the fuel pump module or its communication with the fuel level sensor can trigger the code.
9. How can I prevent the P1100 code from occurring in the future?
Regular maintenance, keeping the fuel system clean, and addressing wiring or sensor issues promptly can help prevent the recurrence of this code.
10. Does a P1100 code always mean the fuel level sensor is bad?
No, the code can also be caused by wiring problems, poor electrical connections, or issues with the PCM, so a thorough diagnosis is essential.
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