Engine-CodesGeneric – P2748

P2748 Code - Intermediate Shaft Speed Sensor 'B' Circuit Intermittent

Quick Answer

The P2748 diagnostic trouble code refers to an issue with the Intermediate Shaft Speed Sensor 'B' circuit in the vehicle. Common causes include Faulty Intermediate Shaft Speed Sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or contamination in the sensor connections. 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
P2748 indicates Intermediate Shaft Speed Sensor 'B' Circuit Intermittent.
Common causes
Common causes include Faulty Intermediate Shaft Speed Sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or contamination in the sensor connections.
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 12, 2024
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Code P2748 Description

The P2748 diagnostic trouble code refers to an issue with the Intermediate Shaft Speed Sensor 'B' circuit in the vehicle. The Intermediate Shaft Speed Sensor, also known as ISS, is a crucial component in the transmission system that monitors the speed of the intermediate shaft within the transmission. This information is used by the vehicle's computer to control various functions such as shifting points, torque converter lock-up, and overall transmission performance.

OBDII Code P2748 - Intermediate Shaft Speed Sensor 'B' Circuit Intermittent
P2748 Code - Intermediate Shaft Speed Sensor 'B' Circuit Intermittent

Common Causes of P2748

  1. Faulty Intermediate Shaft Speed Sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. Corrosion or contamination in the sensor connections
  4. Issues with the transmission control module
  5. Electrical issues such as a blown fuse or short in the circuit

Symptoms of P2748

  1. Erratic shifting patterns
  2. Delayed or harsh shifts
  3. Decreased fuel efficiency
  4. Transmission going into limp mode
  5. Illumination of the Check Engine Light

How to Fix P2748

  1. Begin by diagnosing the specific cause of the issue using a diagnostic scanner to retrieve the trouble codes and pinpoint the exact problem.
  2. Inspect the wiring and connectors associated with the Intermediate Shaft Speed Sensor for any signs of damage, corrosion, or contamination. Repair or replace any damaged components as needed.
  3. Test the Intermediate Shaft Speed Sensor itself to ensure it is functioning correctly. Replace the sensor if it is found to be faulty.
  4. Clear the trouble codes from the vehicle's computer and perform a test drive to verify that the issue has been resolved.
  5. If the problem persists, further diagnostics may be required to identify any underlying issues with the transmission control module or other related components.

Cost to Fix P2748

The typical repair costs for addressing the P2748 code can vary depending on the specific cause of the issue and the vehicle's make and model. In general, parts for replacing the Intermediate Shaft Speed Sensor can range from $100 to $300, while labor costs can range from $150 to $300. Overall, the total repair cost can range from $250 to $600 or more. It is important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle type, and labor rates at the auto repair shop. It is advisable to consult with a professional mechanic for a more accurate cost estimate.

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Code P2748 Information for Specific Makes

  • P2748 Dodge — Intermediate Shaft Speed Sensor 'B' Circuit Intermittent
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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