P0994 Fault Code

Transmission Fluid Pressure Sensor/Switch F Circuit Low

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

The P0994 fault code indicates an issue with the Transmission Fluid Pressure Sensor/Switch F Circuit, specifically that it is reporting a low voltage or erroneous signal. This could lead to improper shifting, affecting the performance of the transmission and potentially causing erratic behavior while driving.

What are the symptoms of the P0994 code?

Symptoms that might indicate a P0994 fault code include:

• Harsh or erratic shifting
• Slipping transmission
• Transmission may enter failsafe mode
• Warning lights on the dashboard, such as the check engine light
• Poor acceleration or driveability concerns

What causes the P0994 code?

The causes of a P0994 fault code may include:

• A faulty transmission fluid pressure sensor/switch
• Damaged wiring or connectors related to the sensor
• Low transmission fluid levels
• Contaminated transmission fluid or internal transmission issues
• Faulty engine control module (ECM) or transmission control module (TCM)

How to fix P0994?

To resolve a P0994 fault code, you can follow these steps:

• Check the transmission fluid level and condition, and replace if necessary
• Inspect the wiring and connectors for any signs of damage or corrosion
• Test the transmission fluid pressure sensor/switch with a multimeter for proper function
• Replace the faulty sensor/switch if it is not working correctly
• Clear the fault code and conduct a road test to ensure the issue is resolved.