P1103 GMC Code - Water In Fuel 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 Water In Fuel Sensor, Water In Fuel Sensor harness is open or shorted, Water In Fuel Sensor 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
- P1103 GMC indicates Water In Fuel Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty Water In Fuel Sensor, Water In Fuel Sensor harness is open or shorted, Water In Fuel Sensor 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 P1103 GMC Description
What are the Possible Causes of the DTC P1103 GMC?
- Faulty Water In Fuel Sensor
- Water In Fuel Sensor harness is open or shorted
- Water In Fuel Sensor circuit poor electrical connection
How to Fix the DTC P1103 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 P1103 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.
Need more information about the P1103 GMC code?
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Need Help with the Code?
Get the P1103 GMC code diagnosed by a professional: Find a repair shop in your area
Information for Specific GMC Models
- P1103 2014 GMC Sierra — Water In Fuel Signal Message Counter Incorrect
- P1103 2015 GMC Sierra — Water In Fuel Signal Message Counter Incorrect
- P1103 2016 GMC Sierra — Water In Fuel Signal Message Counter Incorrect
- P1103 2017 GMC Sierra — Water In Fuel Signal Message Counter Incorrect
- P1103 2018 GMC Sierra — Water In Fuel Signal Message Counter Incorrect
Frequently Asked Questions about P1103 GMC Code
1. What are the common symptoms of OBDII code P1103 in a GMC vehicle?
The common symptoms of code P1103 include rough idling, low engine power, poor fuel efficiency, and difficulty starting the vehicle.
2. What does the OBDII code P1103 "Water In Fuel Signal Message Counter Incorrect" mean for a GMC vehicle?
Code P1103 indicates that the signal message counter related to water in the fuel system is incorrect, suggesting a potential issue with water contamination in the fuel.
3. What are some possible causes of OBDII code P1103 in a GMC vehicle?
Possible causes of code P1103 include water contamination in the fuel system, a faulty water in fuel sensor, wiring issues, or a malfunctioning engine control module (ECM).
4. How can I diagnose the OBDII code P1103 in my GMC vehicle?
Diagnosing code P1103 involves checking for water in the fuel, inspecting the water in fuel sensor and its wiring, and using a scan tool to monitor the signal message counter values.
5. What are the repair options for resolving OBDII code P1103 in a GMC vehicle?
Repair options for code P1103 may include draining and replacing the contaminated fuel, replacing the water in fuel sensor, repairing any damaged wiring, or reprogramming the ECM if necessary.
6. Can I continue driving my GMC vehicle with OBDII code P1103?
It is not recommended to continue driving your vehicle with code P1103, as water contamination in the fuel system can lead to engine performance issues and potential damage if left unresolved.
7. How serious is OBDII code P1103 in a GMC vehicle?
Code P1103 should be addressed promptly as water contamination in the fuel system can affect engine performance and reliability. Ignoring the issue may lead to more severe problems over time.
8. Can a DIY enthusiast fix OBDII code P1103 in a GMC vehicle?
DIY enthusiasts with automotive repair experience may be able to address code P1103 by following diagnostic procedures and making necessary repairs, such as replacing the water in fuel sensor.
9. How much does it typically cost to repair OBDII code P1103 in a GMC vehicle?
The cost of repairing code P1103 can vary depending on the specific cause of the issue. Costs may include fuel system cleaning, sensor replacement, wiring repairs, or ECM reprogramming, so it's best to consult a professional for an accurate estimate.
10. How can I prevent OBDII code P1103 from occurring in my GMC vehicle in the future?
To prevent code P1103, it's important to use clean fuel from reputable sources, regularly inspect the fuel system for contamination, and address any issues with the water in fuel sensor promptly. Regular maintenance can help avoid this code in the future.
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