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P0996 OBD2: Transmission Fluid Pressure Sensor/Switch "F" Circuit Intermittent

P0996 OBD2: Transmission Fluid Pressure Sensor/Switch “F” Circuit Intermittent

The P0996 code is an OBD-II trouble code that indicates a problem with the Transmission Fluid Pressure Sensor/Switch “F” circuit. This code is triggered when the engine’s control module (PCM) or Transmission Control Module (TCM) detects an issue with the electrical circuit related to the transmission fluid pressure solenoid.

What Does the P0996 Code Mean?

The P0996 code signifies that there is an intermittent fault in the circuit related to the Transmission Fluid Pressure Sensor/Switch “F”. This means that the vehicle’s transmission may not shift properly due to issues in the hydraulic fluid system that engages the transmission clutches.

What Causes the P0996 Code?

Several factors can cause the P0996 code, including:

  • Failure of the Transmission Control Module (TCM)
  • Low transmission fluid levels
  • Failure of the transmission fluid pressure sensor
  • Wiring issues or damaged connectors in the circuit

What Are the Symptoms of the P0996 Code?

When the P0996 code is present, you may experience the following symptoms:

  • Transmission may not shift properly
  • Increased fuel consumption
  • Unusual noises from the transmission

How Serious Is the P0996 Code?

The P0996 code is considered urgent as it can lead to significant malfunctions in the transmission system. If left unaddressed, it can result in severe damage to the vehicle and potentially compromise the safety of the driver and passengers. Immediate action is recommended.

How to Diagnose the P0996 Code

To properly diagnose the P0996 code, follow these steps:

  1. Use an OBD-II scanner to confirm the presence of the P0996 code.
  2. Check the transmission fluid level and condition.
  3. Inspect wiring and connectors related to the Transmission Fluid Pressure Sensor.
  4. Test the Transmission Fluid Pressure Sensor for proper operation.
  5. Evaluate the Transmission Control Module functionality.

Common Repairs for the P0996 Code

Repairs for the P0996 code may include:

  • Replacing the Transmission Fluid Pressure Sensor
  • Repairing or replacing damaged wiring and connectors
  • Refilling or replacing the transmission fluid
  • Replacing the Transmission Control Module if found faulty

How Much Does It Cost to Fix the P0996 Code?

The cost to fix the P0996 code can vary widely based on the specific repairs needed. Expect to pay anywhere from $100 to $1,500 or more, depending on whether you need to replace a sensor, repair wiring, or replace the TCM.

Can I Fix the P0996 Code Myself?

While some aspects of diagnosing and repairing the P0996 code can be done at home, such as checking fluid levels and inspecting wiring, it is advisable to consult a professional mechanic for a thorough diagnosis and repair, especially for complex issues involving the TCM.

About JC Landry

JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of TheMechanicDoctor.com, only to name a few. He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. He also loves cats, Johnny Cash and Subarus.

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