P0996 Fault Code

Transmission Fluid Pressure Sensor/Switch F Circuit Intermittent

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

The P0996 fault code indicates an intermittent issue with the Transmission Fluid Pressure Sensor/Switch F Circuit. This sensor monitors the fluid pressure within the transmission system to ensure optimal performance and efficiency. If the sensor reports erratic readings, it can lead to improper shifting and other drivability issues.

What are the symptoms of the P0996 code?

The symptoms associated with the P0996 code can vary but may include:

• Erratic or harsh shifting of the transmission.
• Slipping transmission or difficulty in getting the vehicle into gear.
• Illuminated check engine light or transmission warning light on the dashboard.
• Decreased fuel efficiency and increased engine RPMs during operation.

What causes the P0996 code?

Several factors can contribute to the P0996 code. Common causes include:

• A malfunctioning transmission fluid pressure sensor or switch.
• Damaged wiring or connectors in the circuit.
• Low or contaminated transmission fluid, affecting sensor functionality.
• Issues with the transmission control module (TCM) potentially leading to incorrect signal processing.

How to fix P0996?

To resolve the P0996 fault code, the following steps should be taken:

1. Inspect the transmission fluid for level and contamination; replace if necessary.
2. Check the wiring and connectors related to the Transmission Fluid Pressure Sensor/Switch F for damage or corrosion.
3. Test the sensor for proper functionality; replace it if it is found to be faulty.
4. Clear the fault code and conduct a road test to verify if the issue has been resolved.
5. If the problem persists, consider checking the TCM for further diagnosis.