P0841 Fault Code

Transmission Fluid Pressure Sensor/Switch A Circuit Range/Performance

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

The P0841 fault code indicates that there is a problem with the Transmission Fluid Pressure Sensor/Switch A Circuit. This sensor is responsible for measuring the pressure of the transmission fluid, which is crucial for proper transmission function. When the sensor or its circuit malfunctions, it can lead to incorrect readings that affect shifting and overall transmission performance.

What are the symptoms of the P0841 code?

Drivers may experience several symptoms when the P0841 code is present:

• Erratic shifting or harsh shifting behavior
• Delayed engagement or slipping of the transmission
• Transmission warning light illuminated on the dashboard
• Decreased fuel efficiency
• Transmission overheating in severe cases

What causes the P0841 code?

Common causes of the P0841 code include:

• A faulty transmission fluid pressure sensor
• Damaged or corroded wiring or connectors in the sensor circuit
• Low transmission fluid levels
• Internal transmission problems
• Issues within the Transmission Control Module (TCM)

How to fix P0841?

To resolve the P0841 error, the following steps are recommended:

• Inspect and repair any damaged wiring or connections in the transmission fluid pressure sensor circuit
• Replace the faulty transmission fluid pressure sensor if necessary
• Ensure that the transmission fluid is at the proper level and condition
• Clear the fault codes and perform a test drive to verify the repair