Engine-CodesAcura – P0718 Acura

P0718 Acura Code - Intermittent Failure Input Shaft Speed Sensor

Quick Answer

The P0718 code for Acura vehicles indicates an intermittent failure in the input shaft speed sensor. Common causes include Faulty input shaft speed sensor, Wiring or connector issues, Corrosion on sensor contacts. 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
P0718 Acura indicates Intermittent Failure Input Shaft Speed Sensor.
Common causes
Common causes include Faulty input shaft speed sensor, Wiring or connector issues, Corrosion on sensor contacts.
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.
Table of contents Created and updated by William Orellana on Aug 30, 2024
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Code P0718 Acura Description

The P0718 code for Acura vehicles indicates an intermittent failure in the input shaft speed sensor. The input shaft speed sensor is a crucial component of the transmission system that monitors the speed of the input shaft, which helps the vehicle's transmission control module (TCM) to determine the appropriate gear shift points. When this sensor fails intermittently, it can cause erratic shifting behavior, harsh shifts, or even the transmission to go into limp mode, limiting the vehicle's performance.

OBDII Code P0718 Acura - Intermittent Failure Input Shaft Speed Sensor
P0718 Acura Code - Intermittent Failure Input Shaft Speed Sensor

Common Causes of P0718 Acura

  1. Faulty input shaft speed sensor
  2. Wiring or connector issues
  3. Corrosion on sensor contacts
  4. Transmission fluid contamination
  5. TCM malfunction

Symptoms of P0718 Acura

  1. Erratic shifting behavior
  2. Harsh or delayed gear shifts
  3. Transmission slipping
  4. Check Engine Light illuminated
  5. Limp mode activation

How to Fix P0718 Acura

  1. Diagnose the issue by scanning the vehicle's computer for the P0718 code and conducting a visual inspection of the sensor and wiring.
  2. Replace the input shaft speed sensor if it is found to be faulty.
  3. Check and repair any damaged wiring or connectors.
  4. Clear the code and perform a test drive to ensure the issue is resolved.
  5. If the problem persists, further diagnostics may be necessary to identify any underlying transmission issues.

Cost to Fix P0718 Acura

The cost of repairing a P0718 code in an Acura vehicle can vary depending on the specific model and year. Typically, the cost of a new input shaft speed sensor ranges from $50 to $150, while labor costs can add an additional $100 to $200. Overall, the total repair cost for this issue could range from $150 to $350. Keep in mind that these are rough estimates and actual costs may vary based on individual circumstances and location. It is recommended to get quotes from local auto repair shops for a more accurate cost estimate.

When is the Code Detected?

Diagnostic Trouble Code (DTC) P0718 is detected when TCM or ECM receives and intermittent signal from the sensor.

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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.

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