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P2796 OBD2: AUXILIARY Transmission Fluid Pump Control Circuit/Open

P2796 OBD2: AUXILIARY Transmission Fluid Pump Control Circuit/Open

What Does the P2796 Code Mean?

The P2796 code indicates that there is an issue with the Auxiliary Transmission Fluid Pump control circuit. This code is triggered when the vehicle’s onboard diagnostic system detects that the Auxiliary Transmission Fluid Pump is not functioning as it should, which can lead to transmission problems.

What Causes the P2796 Code?

Several factors can cause the P2796 code to appear, including:

  • Failure of the Auxiliary Transmission Pump
  • Issues with the Drive Motor Generator Power Inverter Control Module
  • Wiring problems within the control circuit

What Are the Symptoms of the P2796 Code?

Symptoms associated with the P2796 code may include:

  • The vehicle may become immovable
  • Increased difficulty in shifting gears
  • Transmission overheating

How Serious Is the P2796 Code?

The P2796 code is considered to have a moderate severity. While it may not pose an immediate threat to the vehicle’s safety or functionality, it is crucial to diagnose and fix the issue within a reasonable timeframe to prevent further damage and ensure optimal vehicle performance.

How to Diagnose the P2796 Code

Diagnosis should be carried out by a qualified mechanic using an OBD-II scanner to read the trouble codes. The following steps can be taken:

  1. Inspect the wiring and connectors for damage or corrosion.
  2. Check the functionality of the Auxiliary Transmission Fluid Pump.
  3. Test the Drive Motor Generator Power Inverter Control Module.
  4. Confirm the presence of proper fluid levels in the transmission system.

Common Repairs for the P2796 Code

Common repairs that may resolve the P2796 code include:

  • Replacing the Auxiliary Transmission Fluid Pump
  • Repairing or replacing damaged wiring or connectors
  • Replacing the Drive Motor Generator Power Inverter Control Module if faulty

How Much Does It Cost to Fix the P2796 Code?

The cost to fix the P2796 code can vary depending on the specific issue and the make and model of the vehicle. On average, repairs can range from $100 to $1,500, including parts and labor. A detailed diagnosis will provide a more accurate estimate.

Can I Fix the P2796 Code Myself?

While some experienced DIY mechanics may be able to diagnose and fix minor wiring issues, it is generally recommended to consult a professional for proper diagnosis and repair of the P2796 code to avoid further complications.

About JC Landry

JC spent 15+ years as a certified Master Mechanic before trading the shop for the keyboard. He's worked across dealerships, owned and operated his own independent garage, and consulted on automotive trade school curricula, reviewing technical textbooks used in vocational programs. He now serves as Editor-in-Chief at eManualOnline.com, where he oversees the platform's technical content. He's one of the few voices in automotive publishing who has actually turned wrenches professionally on the vehicles he covers. He didn't learn automotive repair to write about it. He learned to write after spending over a decade doing it.

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