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P2817 OBD2: Pressure Control Solenoid "H" Performance/Stuck Off

P2817 OBD2: Pressure Control Solenoid “H” Performance/Stuck Off

The P2817 OBD-II code indicates a problem with the transmission control system, specifically related to the Pressure Control Solenoid “H”.

What Does the P2817 Code Mean?

The P2817 code is defined as a Pressure Control Solenoid “H” Performance/Stuck Off. It means that the Transmission Control Module (TCM) has detected that the pressure control solenoid is not performing as expected. This solenoid is crucial for regulating hydraulic pressure in the transmission, which is necessary for engaging various clutch packs that provide different gear ratios.

What Causes the P2817 Code?

Several factors can trigger the P2817 code, including:

  • Transmission Control Module (TCM) failure
  • Low transmission fluid level
  • Failure of the transmission pressure control solenoid
  • Wiring issues affecting the solenoid or TCM

What Are the Symptoms of the P2817 Code?

When the P2817 code is present, you may experience the following symptoms:

  • Transmission may not shift properly
  • Increased fuel consumption

How Serious Is the P2817 Code?

The P2817 code is considered urgent and indicates a significant malfunction that requires immediate attention. Failing to address this issue can lead to severe damage to the transmission or create unsafe driving conditions.

How to Diagnose the P2817 Code

Diagnosing the P2817 code involves a complete diagnostic routine:

  1. Obtain the OBD-II trouble codes using a scanner.
  2. Inspect the transmission fluid level and condition.
  3. Check for any wiring issues or corrosion at the solenoid and TCM connectors.
  4. Test the pressure control solenoid to determine if it is functioning correctly.
  5. Evaluate the TCM for any malfunctions.

Common Repairs for the P2817 Code

Repairs for the P2817 code may include:

  • Replacing the faulty pressure control solenoid
  • Repairing or replacing damaged wiring
  • Refilling or changing the transmission fluid
  • Replacing or reprogramming the TCM if necessary

How Much Does It Cost to Fix the P2817 Code?

The cost to fix the P2817 code can vary widely depending on the specific repair needed, the make and model of the vehicle, and labor rates in your area. Typical costs might range from $100 for simple repairs, like fluid changes, to $1,000 or more for TCM replacement.

Can I Fix the P2817 Code Myself?

While some basics, like checking the fluid level or inspecting wiring, can be done by a DIY enthusiast, the P2817 code often requires specialized knowledge and tools for proper diagnosis and repair. If you’re not experienced with automotive repairs, it’s advisable to consult a professional mechanic to ensure the issue is resolved correctly.

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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