P1103 2017 GMC Sierra 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 2017 GMC Sierra 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 2017 GMC Sierra Description
What are the Possible Causes of the DTC P1103 2017 GMC Sierra?
- 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 2017 GMC Sierra?
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 2017 GMC Sierra 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 P1103 2017 GMC Sierra Code
1. What does the OBDII code P1103 mean on a 2017 GMC Sierra?
P1103 indicates that the "Water In Fuel Signal Message Counter" is incorrect, typically pointing to an issue with the fuel system's ability to detect water contamination accurately.
2. What are the common symptoms of P1103 in a 2017 GMC Sierra?
Symptoms may include the "Water in Fuel" warning message, reduced engine performance, poor fuel economy, or difficulty starting the engine.
3. What causes the P1103 code to appear on a 2017 GMC Sierra?
This code is often caused by a faulty water-in-fuel sensor, contaminated fuel, a damaged fuel filter, or wiring and connection issues in the fuel system.
4. Can driving with the P1103 code damage my 2017 GMC Sierra?
Yes, continued driving with water in the fuel can cause severe damage to the fuel injectors, fuel pump, and other engine components.
5. How is the P1103 code diagnosed on a 2017 GMC Sierra?
A mechanic will inspect the water-in-fuel sensor, check for fuel contamination, test the wiring and connections, and use a scan tool to confirm the fault.
6. How do I fix the P1103 code on my 2017 GMC Sierra?
Repairs may involve draining and replacing contaminated fuel, replacing the water-in-fuel sensor, cleaning or replacing the fuel filter, or repairing faulty wiring.
7. Can a bad fuel filter cause the P1103 code?
Yes, a clogged or damaged fuel filter can contribute to the P1103 code by affecting fuel flow and sensor readings.
8. How can I prevent the P1103 code from occurring?
Regularly inspect and replace the fuel filter, use high-quality fuel, and avoid filling up at stations with a history of contaminated fuel.
9. Do I need to reset the P1103 code after repairs?
Yes, after completing the necessary repairs, the code should be cleared using an OBDII scan tool to ensure it does not reappear.
10. Is the P1103 code specific to GMC Sierra trucks?
While P1103 can appear on various vehicles, its specific definition and causes, such as "Water In Fuel Signal Message Counter Incorrect," are tailored to GMC Sierra and other GM vehicles.
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