P1681 Dodge Code - No Fuel Level Bus Message
Quick Answer
The P1681 diagnostic trouble code for Dodge vehicles indicates a problem with the fuel level bus message. Common causes include Faulty fuel level sensor, Damaged wiring or connectors in the fuel level circuit, Malfunctioning ECM. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P1681 Dodge indicates No Fuel Level Bus Message.
- Common causes
- Common causes include Faulty fuel level sensor, Damaged wiring or connectors in the fuel level circuit, Malfunctioning ECM.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P1681 Dodge Description
The P1681 diagnostic trouble code for Dodge vehicles indicates a problem with the fuel level bus message. This code typically means that the fuel level information is not being properly communicated between the fuel level sensor and the vehicle's engine control module (ECM). This lack of communication can lead to inaccurate fuel level readings on the dashboard, potentially causing the fuel gauge to fluctuate erratically or even show empty when there is still fuel in the tank.
Common Causes of P1681 Dodge
- Faulty fuel level sensor
- Damaged wiring or connectors in the fuel level circuit
- Malfunctioning ECM
- Corrosion or contamination in the fuel level sensor circuit
- Electrical issues such as a blown fuse or relay in the fuel level circuit
Symptoms of P1681 Dodge
- Erratic fuel gauge readings
- Fuel gauge showing empty when there is fuel in the tank
- Engine stalling or hesitation
- Decreased fuel efficiency
How to Fix P1681 Dodge
- Perform a diagnostic scan to retrieve the trouble code and pinpoint the source of the issue.
- Inspect the fuel level sensor, wiring, and connectors for any signs of damage or corrosion.
- Test the fuel level sensor's resistance and voltage output to determine if it is functioning correctly.
- Replace any faulty components such as the fuel level sensor or damaged wiring.
- Clear the trouble code from the ECM's memory and test the system to ensure the issue has been resolved.
Cost to Fix P1681 Dodge
The typical repair costs for addressing a P1681 code can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. In general, replacing a faulty fuel level sensor or repairing damaged wiring may cost between $150 and $500, including parts and labor. Additional diagnostic time may be necessary to pinpoint the exact source of the problem, which can add to the overall cost. It's recommended to consult with a professional mechanic to get an accurate estimate based on the specific circumstances of your vehicle.
Need more information about the P1681 Dodge code?
Need more information on how to fix the P1681 Dodge code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1681 Dodge code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1681 Dodge Code
No Frequently Asked Questions about P1681 Dodge Code found.
Discuss the causes and fixes for P1681 Dodge OBDII Code
Code P1681 Dodge comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.