Engine-CodesGeneric – P0918

P0918 Code - Gear Shift Position Circuit Intermittent

Quick Answer

The OBD-II trouble code P0918 indicates a problem with the Gear Shift Position Circuit being intermittent. Common causes include Faulty gear shift position sensor, Loose or corroded electrical connections, Damaged wiring harness. 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
P0918 indicates Gear Shift Position Circuit Intermittent.
Common causes
Common causes include Faulty gear shift position sensor, Loose or corroded electrical connections, Damaged wiring harness.
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 Sep 14, 2024
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Code P0918 Description

The OBD-II trouble code P0918 indicates a problem with the Gear Shift Position Circuit being intermittent. This code is typically found in vehicles with automatic transmissions. The gear shift position circuit is responsible for detecting the position of the gear shift lever and sending this information to the vehicle's engine control module (ECM). The ECM uses this data to adjust various parameters such as engine speed, fuel injection, and transmission shifting points.

OBDII Code P0918 - Gear Shift Position Circuit Intermittent
P0918 Code - Gear Shift Position Circuit Intermittent

Common Causes of P0918

  1. Faulty gear shift position sensor
  2. Loose or corroded electrical connections
  3. Damaged wiring harness
  4. Faulty ECM
  5. Mechanical issues with the gear shift mechanism

Symptoms of P0918

  1. Difficulty shifting gears
  2. Incorrect gear display on the instrument cluster
  3. Transmission slipping
  4. Harsh shifting
  5. Check Engine Light illuminated

How to Fix P0918

  1. Begin by conducting a visual inspection of the gear shift position sensor, wiring, and connectors for any visible damage or corrosion.
  2. Use a multimeter to test the continuity of the wiring harness and connectors to ensure proper electrical connections.
  3. Test the gear shift position sensor using a scan tool to verify its functionality.
  4. If the sensor is faulty, replace it with a new one and recalibrate as necessary.
  5. Clear the trouble code from the ECM and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0918

The cost of repairing a gear shift position circuit intermittent issue can vary depending on the specific cause of the problem. In general, the cost of parts such as a new gear shift position sensor can range from $50 to $200, while labor costs can range from $100 to $300. Overall, the total repair cost can be anywhere from $150 to $500. It is important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and labor rates at the auto repair shop. It is recommended to obtain quotes from local shops for a more accurate cost estimate.

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Code P0918 Information for Specific Makes

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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