P2748 Fault Code

Intermediate Shaft Speed Sensor B Circuit Intermittent

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2748 fault code indicates an intermittent issue with the Intermediate Shaft Speed Sensor B circuit, which plays a crucial role in monitoring the speed of the intermediate shaft within the transmission. When the sensor signals are inconsistent or fail to meet expected thresholds, this code is triggered. It may lead to improper transmission shifting and can impact the vehicle's performance.

What are the symptoms of the P2748 code?

Drivers may experience a variety of symptoms related to the P2748 code, such as:

• Erratic or Harsh Shifting: The transmission may shift unpredictably or roughly.
• Transmission Slipping: A feeling of slipping gears can occur, impacting the driving experience.
• Check Engine Light: Illumination of the check engine light on the dashboard as a warning.
• Reduced Fuel Efficiency: Decreased fuel efficiency may be noticed due to improper shifting behavior.

What causes the P2748 code?

Several factors can lead to the P2748 code, including:

• Faulty Intermediate Shaft Speed Sensor B: The sensor itself may be damaged or malfunctioning.
• Wiring Issues: Damaged or corroded wiring or connectors in the sensor circuit can cause intermittent signals.
• Poor Ground Connections: Inadequate grounding of the sensor can result in erratic readings.
• Transmission Fluid Issues: Low or contaminated transmission fluid can affect sensor performance.

How to fix P2748?

To resolve the P2748 fault code, consider the following steps:

• Inspect and Replace the Sensor: Check the Intermediate Shaft Speed Sensor B for faults and replace it if necessary.
• Examine Wiring and Connectors: Inspect the wiring and connectors for any signs of damage, corrosion, or loose connections. Repair or replace as needed.
• Check Ground Connections: Ensure the sensor has a proper ground connection to eliminate grounding issues.
• Transmission Fluid Change: If contamination or low fluid level is detected, change the transmission fluid to restore proper performance.