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P2776 OBD2: Upshift Switch Circuit Low

P2776 OBD2: Upshift Switch Circuit Low

The P2776 code is an OBD-II trouble code that indicates a problem with the upshift switch circuit in a vehicle equipped with automatic transmission. This code signifies that the upshift switch circuit is low, which can disable the TAP shifting feature.

What Does the P2776 Code Mean?

The P2776 code means that the vehicle’s computer has detected a malfunction in the upshift switch circuit. This issue can lead to the TAP shifting function being disabled, preventing the driver from manually selecting gears while driving.

What Causes the P2776 Code?

Several factors can trigger the P2776 code, including:

  • Body Control Module (BCM) failure
  • Shift lever assembly failure
  • Wiring issues in the upshift switch circuit

What Are the Symptoms of the P2776 Code?

Symptoms associated with the P2776 code may include:

  • Inability to use TAP shifting feature
  • Check Engine Light illuminated
  • Transmission may not shift smoothly

How Serious Is the P2776 Code?

The P2776 code is considered urgent and should be addressed immediately. Ignoring this code can lead to severe damage to the vehicle’s transmission system, potentially resulting in costly repairs and unsafe driving conditions.

How to Diagnose the P2776 Code

To properly diagnose the P2776 code, a mechanic will typically follow these steps:

  1. Use an OBD-II scanner to confirm the P2776 code and check for any additional codes.
  2. Inspect the wiring and connectors related to the upshift switch for any signs of damage or corrosion.
  3. Test the shift lever assembly and the Body Control Module to ensure they are functioning correctly.
  4. Check the upshift switch for proper operation.

Common Repairs for the P2776 Code

Common repairs for the P2776 code may include:

  • Replacing a faulty Body Control Module (BCM)
  • Repairing or replacing the shift lever assembly
  • Fixing wiring issues or replacing damaged connectors

How Much Does It Cost to Fix the P2776 Code?

The cost to fix the P2776 code varies depending on the underlying issue. Typical repair costs may range from $100 to $1,500, depending on whether repairs involve simple wiring fixes or more complex component replacements.

Can I Fix the P2776 Code Myself?

While some DIY enthusiasts may be able to perform basic inspections and repairs, diagnosing and fixing the P2776 code often requires specialized tools and knowledge. It is recommended to seek professional assistance to accurately diagnose and repair the issue 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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