Engine-CodesGMC – P0976 2015 GMC Sierra

P0976 2015 GMC Sierra Code - Shift Solenoid 'B' Short To Ground

Quick Answer

The P0976 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates a Shift Solenoid 'B' Short to Ground. Common causes include Faulty shift solenoid 'B', Damaged wiring or connectors in the circuit, Malfunctioning transmission control module (TCM). Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0976 2015 GMC Sierra indicates Shift Solenoid 'B' Short To Ground.
Common causes
Common causes include Faulty shift solenoid 'B', Damaged wiring or connectors in the circuit, Malfunctioning transmission control module (TCM).
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code P0976 2015 GMC Sierra Description

The P0976 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates a Shift Solenoid 'B' Short to Ground. This means that there is an electrical issue with the shift solenoid 'B' circuit, specifically that it is shorted to ground. The shift solenoid 'B' is a vital component in the transmission system that is responsible for controlling the flow of transmission fluid to engage the appropriate gear. When this solenoid is shorted to ground, it can lead to improper shifting patterns, erratic transmission behavior, and potential damage to the transmission system if left unaddressed.

OBDII Code P0976 2015 GMC Sierra - Shift Solenoid 'B' Short To Ground
P0976 2015 GMC Sierra Code - Shift Solenoid 'B' Short To Ground

Common Causes of P0976 2015 GMC Sierra

  1. Faulty shift solenoid 'B'
  2. Damaged wiring or connectors in the circuit
  3. Malfunctioning transmission control module (TCM)
  4. Corrosion or moisture in the transmission system
  5. Electrical issues such as a short circuit or ground fault

Symptoms of P0976 2015 GMC Sierra

  1. Erratic shifting patterns
  2. Harsh or delayed shifting
  3. Transmission slippage
  4. Inability to shift gears
  5. Decreased fuel efficiency

How to Fix P0976 2015 GMC Sierra

  1. Begin by conducting a thorough inspection of the shift solenoid 'B' circuit, including the solenoid itself, wiring, and connectors.
  2. Test the shift solenoid 'B' for proper operation using a multimeter to check for continuity and resistance.
  3. Inspect the transmission control module (TCM) for any signs of damage or malfunction and perform a diagnostic scan to retrieve any additional trouble codes.
  4. Repair or replace any damaged wiring, connectors, or components in the shift solenoid 'B' circuit as needed.
  5. Clear the DTC and test drive the vehicle to ensure that the issue has been resolved and that the transmission is functioning properly.

Cost to Fix P0976 2015 GMC Sierra

The typical repair costs for addressing a Shift Solenoid 'B' Short to Ground code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for a new shift solenoid 'B' can range from $50 to $150, while labor costs can range from $100 to $300. Overall, the total repair cost for this issue may fall between $150 and $450. It is important to note that these estimates are rough and can vary based on factors such as location, vehicle make and model, and the specific repair shop. It is recommended to obtain quotes from local auto repair shops to get a more accurate cost estimate for addressing this particular DTC.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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