P1100 2015 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 2015 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 2015 Chevrolet Silverado Description
What are the Possible Causes of the DTC P1100 2015 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 2015 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 2015 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 2015 Chevrolet Silverado Code
1. What does the OBDII code P1100 mean on a 2015 Chevrolet Silverado?
The P1100 code indicates an issue with the Fuel Level Sensor 2 Signal Message Counter, suggesting incorrect or unexpected data communication from the secondary fuel level sensor.
2. What are the common symptoms of the P1100 code in a 2015 Silverado?
Symptoms may include an inaccurate or fluctuating fuel gauge reading, potential check engine light illumination, and incorrect fuel level information displayed on the dashboard.
3. What causes the P1100 code to appear on my Silverado?
The code can be caused by a faulty fuel level sensor, wiring issues, a malfunctioning fuel pump module, or problems with the communication between the sensor and the vehicle's control module.
4. Can I drive my 2015 Chevrolet Silverado with the P1100 code?
While the truck may still be drivable, the inaccurate fuel level readings could lead to running out of fuel unexpectedly, so it’s best to address the issue promptly.
5. How do I diagnose the P1100 code on my Silverado?
Diagnosis involves scanning for codes, inspecting the wiring and connectors for damage, testing the fuel level sensor, and verifying communication between the sensor and the vehicle's control module.
6. How can I fix the P1100 code on a 2015 Chevrolet Silverado?
Repairs may include replacing the faulty fuel level sensor, repairing or replacing damaged wiring, or reprogramming the control module if a software issue is identified.
7. Is the fuel level sensor 2 the same as the primary fuel level sensor?
No, the fuel level sensor 2 is typically part of a dual-sensor system used in vehicles with larger or dual fuel tanks to provide more accurate fuel level readings.
8. How much does it cost to fix the P1100 code on a 2015 Silverado?
Repair costs can vary but generally range from $150 to $400 depending on whether the sensor needs replacement or if additional wiring or module repairs are necessary.
9. Can a bad fuel pump cause the P1100 code?
Yes, a malfunctioning fuel pump module, which often houses the fuel level sensor, can contribute to the P1100 code.
10. Do I need special tools to fix the P1100 code on my Silverado?
Basic tools like a multimeter and a diagnostic scanner can help identify the issue, but sensor replacement may require specific tools depending on the fuel tank design.
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