P1103 2015 Chevrolet Silverado 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 2015 Chevrolet Silverado 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 2015 Chevrolet Silverado Description
What are the Possible Causes of the DTC P1103 2015 Chevrolet Silverado?
- 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 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 P1103 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 P1103 2015 Chevrolet Silverado Code
1. What does the OBDII code P1103 mean on a 2015 Chevrolet Silverado?
Code P1103 indicates that the Water In Fuel (WIF) sensor has detected an incorrect or erratic signal, likely related to moisture in the fuel system.
2. What are the common symptoms of P1103 on a 2015 Chevrolet Silverado?
Symptoms may include a "Water in Fuel" warning message, reduced engine performance, rough idling, or difficulty starting the engine.
3. What causes the P1103 code on a 2015 Chevrolet Silverado?
Common causes include water contamination in the fuel, a faulty WIF sensor, damaged wiring or connectors, or a failed fuel filter housing.
4. Can driving with the P1103 code damage my engine?
Yes, driving with water-contaminated fuel can cause serious damage to the fuel injectors, fuel pump, and other engine components.
5. How do I fix the P1103 code on my 2015 Chevrolet Silverado?
Start by draining the water from the fuel separator, inspecting the WIF sensor and wiring for damage, and replacing the fuel filter if necessary.
6. How do I know if the WIF sensor is faulty for code P1103?
If the sensor gives an erratic or constant warning despite draining the fuel system, it may need to be tested or replaced.
7. How often should I check for water in the fuel system to prevent P1103?
It’s recommended to check for water during regular fuel filter maintenance or if driving in areas with poor fuel quality.
8. What tools are needed to diagnose and repair the P1103 code?
You’ll need an OBDII scanner to read the code, a wrench to access the fuel filter, and a multimeter to test the WIF sensor and wiring.
9. Can bad fuel quality cause the P1103 code?
Yes, low-quality or contaminated fuel is a common cause of water in the fuel system, which may trigger the P1103 code.
10. Is it expensive to fix the P1103 code on a 2015 Chevrolet Silverado?
Repair costs vary but can range from a simple fuel filter replacement to more expensive repairs if the WIF sensor or other components are damaged.
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