P1100 GMC 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 GMC 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 GMC Description
What are the Possible Causes of the DTC P1100 GMC?
- 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 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 P1100 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
- P1100 2014 GMC Sierra — Fuel Level Sensor 2 Signal Message Counter Incorrect
- P1100 2015 GMC Sierra — Fuel Level Sensor 2 Signal Message Counter Incorrect
- P1100 2016 GMC Sierra — Fuel Level Sensor 2 Signal Message Counter Incorrect
- P1100 2017 GMC Sierra — Fuel Level Sensor 2 Signal Message Counter Incorrect
- P1100 2018 GMC Sierra — Fuel Level Sensor 2 Signal Message Counter Incorrect
Frequently Asked Questions about P1100 GMC Code
1. What are common symptoms of OBDII code P1100 on a GMC related to the Fuel Level Sensor 2 Signal Message Counter Incorrect?
- Common symptoms include inaccurate fuel level readings on the dashboard, fuel gauge fluctuations, and potential stalling or hesitation during operation.
2. What can cause the OBDII code P1100 on a GMC indicating Fuel Level Sensor 2 Signal Message Counter Incorrect?
- The code P1100 can be triggered by a faulty fuel level sensor, wiring issues, a defective fuel pump, or a malfunctioning fuel level sensor module.
3. How can I diagnose the OBDII code P1100 related to the Fuel Level Sensor 2 Signal Message Counter Incorrect on my GMC?
- To diagnose the issue, you can perform a visual inspection of the fuel level sensor and its wiring, conduct a fuel system pressure test, and use a scan tool to monitor sensor data for abnormalities.
4. What are some repair tips for addressing the OBDII code P1100 on a GMC due to Fuel Level Sensor 2 Signal Message Counter Incorrect?
- Repair options may include replacing the fuel level sensor, repairing any damaged wiring, testing and potentially replacing the fuel pump, or reprogramming the fuel level sensor module.
5. Can a DIY enthusiast fix the OBDII code P1100 related to Fuel Level Sensor 2 Signal Message Counter Incorrect on a GMC?
- While some aspects of diagnosing and repairing the issue may be feasible for DIY enthusiasts, it is recommended to consult a professional mechanic for accurate diagnosis and proper repair to ensure the issue is resolved correctly.
6. Is it safe to continue driving with the OBDII code P1100 indicating Fuel Level Sensor 2 Signal Message Counter Incorrect on a GMC?
- It is not recommended to continue driving with this issue, as inaccurate fuel level readings can lead to running out of fuel unexpectedly or other potential fuel system problems that may affect the vehicle's performance and safety.
7. How much does it typically cost to repair the OBDII code P1100 related to Fuel Level Sensor 2 Signal Message Counter Incorrect on a GMC?
- The cost of repairs can vary depending on the specific cause of the issue, but it may range from $200 to $500 or more, including parts and labor.
8. Can a faulty fuel level sensor cause other problems besides triggering the OBDII code P1100 on a GMC?
- Yes, a faulty fuel level sensor can lead to inaccurate fuel level readings, issues with fuel delivery, and potential drivability problems, impacting the overall performance and efficiency of the vehicle.
9. How long does it take to repair the OBDII code P1100 related to Fuel Level Sensor 2 Signal Message Counter Incorrect on a GMC?
- The repair time can vary based on the extent of the issue and the specific repair needed, but it may take a few hours to a day for a professional mechanic to diagnose and fix the problem.
10. Can resetting the OBDII system clear the P1100 code related to Fuel Level Sensor 2 Signal Message Counter Incorrect on a GMC?
- While resetting the OBDII system may temporarily clear the code, it is important to address the underlying issue causing the code to prevent it from reoccurring and ensure the vehicle's fuel system operates correctly.
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