P2741 Fault Code

Transmission Fluid Temperature Sensor B Circuit Range/Performance

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

The P2741 fault code indicates a problem with the Transmission Fluid Temperature Sensor B Circuit, specifically that it is outside of the expected range or has performance issues. This sensor monitors the temperature of the transmission fluid and provides data to the engine control unit (ECU) to ensure optimal transmission performance. When the sensor fails or reports incorrect temperature readings, it may lead to improper transmission operation.

What are the symptoms of the P2741 code?

Drivers may notice several symptoms when this fault is present, including:

• Unusual shifting behavior or harsh shifts
• Delayed engagement when shifting into gear
• Engine performance issues, such as stalling or reduced power
• Warning lights on the dashboard, particularly the check engine light
• Overheating transmission fluid, leading to possible damage

What causes the P2741 code?

Common causes of the P2741 code include:

• Faulty Transmission Fluid Temperature Sensor B
• Damaged wiring or connectors in the sensor circuit
• Poor electrical connections
• Transmission fluid deterioration or contamination
• Malfunctions within the transmission control module (TCM)

How to fix P2741?

To resolve the P2741 code, consider the following steps:

1. Inspect the wiring and connectors of the Transmission Fluid Temperature Sensor B for damage or corrosion.
2. Test the sensor for proper functionality using a multimeter; replace it if faulty.
3. Check the transmission fluid condition and level; change it if it's dirty or burnt.
4. Clear the code and take the vehicle for a test drive to see if the issue returns.
5. If the problem persists, examine the transmission control module and associated software for updates or malfunctions.