The P0718 code is an OBD-II trouble code that indicates an issue with the Input/Turbine Speed Sensor “A” circuit. This sensor is crucial for the proper functioning of your vehicle’s transmission. It provides the Transmission Control Module (TCM) with information about how fast the engine is rotating, ensuring smooth gear shifts.
What Does the P0718 Code Mean?
OBD-II Code P0718 is defined as an Input/Turbine Speed Sensor “A” Circuit Intermittent issue. This means that the TCM is receiving an inconsistent or incorrect signal from the Input Speed Sensor. As a result, the vehicle may struggle to shift gears appropriately, leading to performance issues.
What Causes the P0718 Code?
Several factors can trigger the P0718 code, including:
- Crankshaft Position Sensor (CKP) failure
- Powertrain Control Module (PCM) failure
- Transmission Control Module (TCM) failure
- Wiring issues, such as shorts or open circuits
What Are the Symptoms of the P0718 Code?
Drivers experiencing the P0718 code may notice the following symptoms:
- Increased fuel consumption
- Transmission may not shift properly
How Serious Is the P0718 Code?
The P0718 code is considered urgent, as it indicates significant malfunctions that can severely damage the vehicle if not addressed promptly. Delaying repairs can lead to further complications, including potential harm to the driver and passengers.
How to Diagnose the P0718 Code
Diagnosing the P0718 code typically involves a comprehensive approach:
- Use an OBD-II scanner to confirm the P0718 code and check for additional codes.
- Inspect the wiring and connectors related to the Input Speed Sensor for any signs of damage or corrosion.
- Test the Input Speed Sensor itself using a multimeter to ensure it is functioning correctly.
- Check the PCM and TCM for any issues that may affect sensor readings.
Common Repairs for the P0718 Code
Common repairs for the P0718 code may include:
- Replacing the Input Speed Sensor
- Repairing or replacing damaged wiring and connectors
- Reprogramming or replacing the PCM or TCM if necessary
How Much Does It Cost to Fix the P0718 Code?
The cost to fix the P0718 code can vary significantly based on the underlying issue. On average, repairs may range from $100 to $500, depending on whether you need a simple sensor replacement or more extensive electrical repairs.
Can I Fix the P0718 Code Myself?
While some DIY enthusiasts may be able to address the P0718 code by replacing the Input Speed Sensor or repairing wiring issues, it’s essential to have a solid understanding of automotive systems. If you’re unsure or lack the necessary tools, it’s advisable to consult a professional mechanic to avoid further complications.
