P1718 Mercury Code - Transmission Fluid Temperature Sensor Performance
Quick Answer
The Diagnostic Trouble Code (DTC) will set during Key On Engine Off (KOEO), Key On Engine Running (KOER) & or continuous indicates Transmission Fluid Temperature (TFT) sensor circuit input above maximum acceptable voltage. Common causes include Faulty Transmission Fluid Temperature Sensor, Transmission Fluid Temperature Sensor harness is open or shorted, Transmission Fluid Temperature 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
- P1718 Mercury indicates Transmission Fluid Temperature Sensor Performance.
- Common causes
- Common causes include Faulty Transmission Fluid Temperature Sensor, Transmission Fluid Temperature Sensor harness is open or shorted, Transmission Fluid Temperature 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 P1718 Mercury Description
What are the Possible Causes of the DTC P1718 Mercury?
- Faulty Transmission Fluid Temperature Sensor
- Transmission Fluid Temperature Sensor harness is open or shorted
- Transmission Fluid Temperature Sensor circuit poor electrical connection
How to Fix the DTC P1718 Mercury?
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 P1718 Mercury 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 P1718 Mercury code?
Need more information on how to fix the P1718 Mercury code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1718 Mercury code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1718 Mercury Code
1. What are the common symptoms of OBDII code P1718 on a Mercury related to the Transmission Fluid Temperature Sensor Performance?
- Common symptoms include erratic shifting, transmission overheating, illuminated transmission warning light, and potential transmission damage.
2. What are the possible causes of OBDII code P1718 on a Mercury?
- The code may be triggered by a faulty transmission fluid temperature sensor, damaged wiring or connectors, low transmission fluid levels, or a malfunctioning transmission control module.
3. How can I diagnose the issue causing OBDII code P1718 on my Mercury?
- Diagnose the problem by checking the transmission fluid level and condition, inspecting the wiring and connectors related to the temperature sensor, and using a scan tool to monitor sensor data and transmission performance.
4. Can I continue driving my Mercury with OBDII code P1718 present?
- It is not recommended to drive your vehicle with this code present, as it can lead to further transmission damage and potential safety hazards. It is best to address the issue promptly.
5. How can I repair OBDII code P1718 on my Mercury related to the Transmission Fluid Temperature Sensor Performance?
- Repair options include replacing the faulty transmission fluid temperature sensor, repairing damaged wiring or connectors, ensuring proper transmission fluid levels, and resetting the trouble code with a scan tool.
6. Are there any DIY tips for troubleshooting OBDII code P1718 on a Mercury?
- DIY tips include checking the transmission fluid level and condition, inspecting the sensor wiring for damage, and ensuring all connections are secure before seeking professional help if needed.
7. How important is the Transmission Fluid Temperature Sensor in the overall operation of my Mercury's transmission?
- The Transmission Fluid Temperature Sensor is crucial for monitoring the temperature of the transmission fluid, helping the vehicle's computer adjust shift points and protect the transmission from damage due to overheating.
8. Can extreme weather conditions affect the performance of the Transmission Fluid Temperature Sensor on a Mercury?
- Yes, extreme temperatures can affect the accuracy and performance of the sensor, leading to potential issues with transmission fluid temperature readings and triggering OBDII code P1718.
9. Is OBDII code P1718 common in Mercury vehicles, or is it a rare occurrence?
- While not as common as some other codes, OBDII code P1718 related to Transmission Fluid Temperature Sensor Performance can still occur in Mercury vehicles, especially as they age or if maintenance is neglected.
10. What are the potential long-term consequences of ignoring OBDII code P1718 on a Mercury?
- Ignoring this code can lead to further transmission damage, reduced performance, and potential safety risks while driving. It is important to address the underlying issue promptly to prevent costly repairs down the line.
Discuss the causes and fixes for P1718 Mercury OBDII Code
Code P1718 Mercury 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.
