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P2793 OBD2: Gear Shift Direction Circuit

P2793 OBD2: Gear Shift Direction Circuit

The P2793 OBD-II code is an indication of an issue within the gear shift direction circuit of your vehicle. This code is commonly associated with vehicles equipped with automatic transmissions that feature TAP shifting, allowing drivers to manually select gears while driving.

What Does the P2793 Code Mean?

The P2793 code signifies a malfunction in the gear shift direction circuit. When this code is triggered, it usually means that the downshift switch is not functioning correctly, resulting in the disabling of the TAP shift function.

What Causes the P2793 Code?

Several factors can lead to the P2793 code being triggered, including:

  • Failure of the Body Control Module (BCM)
  • Shift lever assembly failure
  • Wiring issues within the gear shift circuit

What Are the Symptoms of the P2793 Code?

The primary symptom associated with the P2793 code is the disabling of the TAP shifting feature. Drivers may notice:

  • Inability to manually select gears using TAP shifting
  • Potential warning lights on the dashboard related to transmission performance

How Serious Is the P2793 Code?

The P2793 code is classified as moderate severity. While it may not pose an immediate threat to vehicle safety or functionality, it is advisable to have it diagnosed in a reasonable time frame to prevent further complications with your vehicle’s transmission system.

How to Diagnose the P2793 Code

Diagnosing the P2793 code involves the following steps:

  1. Use an OBD-II scanner to confirm the P2793 code and check for any additional codes.
  2. Inspect the wiring and connectors in the gear shift circuit for any signs of damage or wear.
  3. Examine the Body Control Module (BCM) and shift lever assembly for proper operation.
  4. Perform tests on the downshift switch to ensure it is functioning correctly.

Common Repairs for the P2793 Code

Repairs for the P2793 code may include:

  • Replacing or repairing damaged wiring or connectors
  • Repairing or replacing the Body Control Module (BCM)
  • Fixing or replacing the shift lever assembly
  • Replacing the downshift switch if it is faulty

How Much Does It Cost to Fix the P2793 Code?

The cost to repair the P2793 code can vary widely based on the specific issue and labor rates in your area. On average, repairs may range from $150 to $800, depending on whether components need to be replaced or if wiring repairs are necessary.

Can I Fix the P2793 Code Myself?

While some DIY enthusiasts may be able to address minor wiring issues or replace components like the downshift switch, diagnosing and repairing the P2793 code can be complex. It is recommended to consult a professional mechanic for a thorough diagnosis and repair to ensure the problem is properly resolved.

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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