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Engine-Codes – Honda – P0976 Honda

P0976 Honda Code - Shift Solenoid Valve 'B' Circuit Low

Quick Answer

The P0976 code specifically indicates a malfunction in the shift solenoid valve 'B' circuit within Honda vehicles. Common causes include Damaged wiring or connectors in the shift solenoid circuit, A faulty shift solenoid valve 'B' itself, Corrosion or moisture intrusion affecting electrical connections. 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 Honda indicates Shift Solenoid Valve 'B' Circuit Low.
Common causes
Common causes include Damaged wiring or connectors in the shift solenoid circuit, A faulty shift solenoid valve 'B' itself, Corrosion or moisture intrusion affecting electrical connections.
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.
What is this?
Table of contents Created and updated by William Orellana on Jun 23, 2025
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Code P0976 Honda Description

The P0976 code specifically indicates a malfunction in the shift solenoid valve 'B' circuit within Honda vehicles. This solenoid is a critical component of the transmission system, responsible for controlling the flow of transmission fluid to facilitate gear shifts. When the powertrain control module (PCM) detects a short circuit in the solenoid's circuit, it triggers this diagnostic trouble code (DTC).

OBDII Code P0976 Honda - Shift Solenoid Valve 'B' Circuit Low
P0976 Honda Code - Shift Solenoid Valve 'B' Circuit Low

Common Causes of P0976 Honda

  1. Damaged wiring or connectors in the shift solenoid circuit.
  2. A faulty shift solenoid valve 'B' itself.
  3. Corrosion or moisture intrusion affecting electrical connections.
  4. Transmission fluid contamination or low fluid levels.
  5. Issues with the PCM or transmission control module (TCM) affecting solenoid operation.

Symptoms of P0976 Honda

  1. Erratic or harsh shifting during acceleration or deceleration.
  2. Delayed engagement when shifting from park to drive or reverse.
  3. Transmission slipping or failing to shift into higher gears.
  4. Warning lights illuminated on the dashboard, such as the check engine light.
  5. Increased engine RPMs without corresponding vehicle acceleration.

How to Fix P0976 Honda

  1. Inspect Wiring and Connectors: Begin by visually inspecting the wiring harness and connectors related to the shift solenoid valve 'B' for any signs of damage, corrosion, or loose connections. Repair or replace as necessary.
  2. Test the Shift Solenoid: Use a multimeter to test the resistance of the shift solenoid valve 'B'. If it is outside the manufacturer's specified range, replace the solenoid.
  3. Check Transmission Fluid: Ensure that the transmission fluid is at the correct level and is clean. If the fluid is contaminated or low, perform a fluid change and refill to the proper level.
  4. Scan for Additional Codes: Use an OBD-II scanner to check for any additional trouble codes that may indicate other underlying issues. Address any related codes accordingly.
  5. Reprogram or Replace PCM/TCM: If all other components are functioning correctly, consider reprogramming or replacing the PCM or TCM if they are found to be faulty.

Cost to Fix P0976 Honda

The typical repair costs for addressing a P0976 code can range from $150 to $600, depending on the specific cause of the issue. This estimate includes parts such as a new shift solenoid (which can cost between $50 to $200) and labor costs that may vary based on the complexity of the repair. Labor rates at auto repair shops generally range from $80 to $150 per hour. In metropolitan areas or at dealerships, rates may be higher, while independent shops often offer more competitive pricing. It's advisable to check local rates and get a detailed estimate based on your specific vehicle make and model for a more precise cost assessment.

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Information for Specific Honda Models

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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