AutoCodesChevrolet – P1103 2016 Chevrolet Silverado

P1103 2016 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 2016 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 271
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 26, 2022
💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1103 2016 Chevrolet Silverado Description

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Operating information and commands are exchanged among the control modules. Each module on the serial data circuit maintains a transmit error counter and a receive error counter. The counter values increase with detected errors and decrease with error-free messages. The Diagnostic Trouble Code (DTC) will be set when the Water In Fuel Signal Message Counter is Incorrect.
OBDII Code P1103 2016 Chevrolet Silverado - Water In Fuel Signal Message Counter Incorrect - AutoCodes.com
P1103 2016 Chevrolet Silverado Code - Water In Fuel Signal Message Counter Incorrect

What are the Possible Causes of the DTC P1103 2016 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 2016 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 2016 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.

Need more information about the P1103 2016 Chevrolet Silverado code?

Need more information on how to fix the P1103 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1103 2016 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1103 2016 Chevrolet Silverado Code

1. What does the OBDII code P1103 mean on a 2016 Chevrolet Silverado?

P1103 indicates that the water-in-fuel signal message counter is incorrect, signaling a potential issue with the fuel system or its sensors.

2. What are the common symptoms of a P1103 code on a 2016 Chevy Silverado?

Symptoms may include a "Water in Fuel" warning light, reduced engine performance, rough idling, or difficulty starting the vehicle.

3. What causes the P1103 code on a 2016 Chevrolet Silverado?

Common causes include a faulty water-in-fuel sensor, contaminated fuel, corroded wiring or connectors, or a malfunction in the fuel system control module.

4. How do I diagnose a P1103 code on my Silverado?

Start by inspecting the water-in-fuel sensor, checking for fuel contamination, and examining the wiring and connectors for damage or corrosion.

5. Can driving with a P1103 code damage my Silverado?

Yes, ignoring the code can lead to engine damage if water-contaminated fuel is not addressed promptly.

6. How do I fix a P1103 code on a 2016 Chevy Silverado?

Repairs may include draining and replacing contaminated fuel, replacing the water-in-fuel sensor, or repairing damaged wiring or connectors.

7. What tools are needed to troubleshoot a P1103 code?

You’ll need an OBDII scanner, a multimeter to check electrical connections, and possibly tools to drain and replace the fuel.

8. How can I prevent the P1103 code from recurring?

Regularly use high-quality fuel, replace the fuel filter as recommended, and ensure the fuel system is free of moisture or contaminants.

9. Is the P1103 code related to the fuel filter on a 2016 Silverado?

Yes, a clogged or contaminated fuel filter can contribute to issues that trigger the P1103 code.

10. Should I take my Silverado to a mechanic for the P1103 code?

If you’re unsure of the cause or unable to fix it yourself, it’s advisable to consult a qualified mechanic to avoid further damage.

Discuss the causes and fixes for P1103 2016 Chevrolet Silverado OBDII Code

Code P1103 2016 Chevrolet Silverado comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play