P1103 2016 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 2016 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 2016 GMC Sierra Description
What are the Possible Causes of the DTC P1103 2016 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 2016 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 2016 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 2016 GMC Sierra Code
1. What does the OBDII code P1103 mean on a 2016 GMC Sierra?
Code P1103 indicates that the Water In Fuel (WIF) signal message counter is incorrect or not functioning as expected.
2. What are the symptoms of code P1103 in a 2016 GMC Sierra?
Common symptoms include a warning light on the dashboard, reduced engine performance, and potential fuel contamination issues.
3. What causes the P1103 code to appear in a GMC Sierra?
The code is typically caused by a faulty WIF sensor, wiring issues, a contaminated fuel filter, or incorrect software calibration.
4. Can driving with the P1103 code damage my 2016 GMC Sierra?
Driving with this code may lead to engine damage if water in the fuel is not addressed, as it can harm fuel system components.
5. How do I fix the P1103 code on my GMC Sierra?
Inspect and replace the WIF sensor if faulty, check wiring connections for damage, and replace the fuel filter if contaminated.
6. How can I tell if my WIF sensor is bad?
A bad WIF sensor may give erratic readings, trigger the P1103 code, or fail to detect water in the fuel.
7. How much does it cost to repair a P1103 code on a 2016 GMC Sierra?
Repair costs vary, but replacing the WIF sensor typically costs $50-$150, while addressing wiring or further diagnostics may increase costs.
8. Can a dirty fuel filter cause the P1103 code?
Yes, a dirty or contaminated fuel filter can lead to water detection issues and trigger the P1103 code.
9. Do I need to reprogram my truck after fixing the P1103 code?
In some cases, clearing the code and updating the vehicle’s software may be necessary after resolving the issue.
10. How can I prevent the P1103 code from recurring?
Regularly maintain the fuel system, use high-quality fuel, replace fuel filters as recommended, and ensure proper WIF sensor function.
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