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P0782 OBD2: 2-3 Shift

P0782 OBD2: 2-3 Shift

OBD-II Code P0782 is defined as a 2-3 Shift error. This code indicates that the Transmission Control Module (TCM) has detected a problem with the transmission not holding the requested gear during shifting.

What Does the P0782 Code Mean?

The P0782 code signifies that the TCM has identified a failure in the vehicle’s transmission system specifically when attempting to shift from the second to third gear. This is crucial for optimal vehicle performance.

What Causes the P0782 Code?

Several factors can cause the P0782 code, including:

  • Transmission Control Module (TCM) failure
  • Low transmission fluid level
  • Transmission shift solenoid failure
  • Transmission valve body failure
  • Wiring issues

What Are the Symptoms of the P0782 Code?

Common symptoms associated with the P0782 code include:

  • Transmission may not shift properly
  • Difficulty in accelerating
  • Slipping gears
  • Unusual noises from the transmission

How Serious Is the P0782 Code?

The P0782 code is categorized as urgent. Immediate action is necessary as it can lead to significant malfunctions, potentially causing severe damage to the vehicle or posing safety risks to the driver and passengers.

How to Diagnose the P0782 Code

To diagnose the P0782 code, a mechanic will typically follow these steps:

  1. Use an OBD-II scanner to confirm the P0782 code.
  2. Check the transmission fluid level and condition.
  3. Inspect the TCM and related wiring for faults.
  4. Test the transmission shift solenoids and valve body.
  5. Perform a road test to observe shifting behavior.

Common Repairs for the P0782 Code

Repairs commonly needed to resolve the P0782 code include:

  • Automatic Transmission Fluid and Filter Change
  • Replacing the Transmission Control Module (TCM)
  • Repairing or replacing shift solenoids
  • Addressing wiring issues or shorts
  • Overhauling or replacing the valve body

How Much Does It Cost to Fix the P0782 Code?

The cost to fix the P0782 code can vary widely based on the underlying issue. On average, repairs might range from $150 for a fluid change to over $2,000 for TCM replacement or valve body repairs. Always consult with a professional for an accurate estimate.

Can I Fix the P0782 Code Myself?

While some basic checks, such as inspecting the transmission fluid level or changing the fluid and filter, can be done by a knowledgeable DIYer, it is advisable to seek professional assistance for diagnostics and repairs related to the P0782 code. Proper diagnosis is crucial to avoid unnecessary repairs and expenses.

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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