Engine-CodesAcura – P0751 Acura

P0751 Acura Code - Shift Solenoid 'A' Stuck Off

Quick Answer

When the diagnostic trouble code P0751 appears on an Acura vehicle, it signifies that the shift solenoid 'A' is stuck off. Common causes include Faulty shift solenoid 'A': The solenoid may be malfunctioning, causing it to remain stuck in the off position, Electrical issues: Wiring harness or connectors related to the shift solenoid may be damaged or disconnected, Low transmission fluid: Insufficient fluid levels can affect the proper functioning of the shift solenoid. 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
P0751 Acura indicates Shift Solenoid 'A' Stuck Off.
Common causes
Common causes include Faulty shift solenoid 'A': The solenoid may be malfunctioning, causing it to remain stuck in the off position, Electrical issues: Wiring harness or connectors related to the shift solenoid may be damaged or disconnected, Low transmission fluid: Insufficient fluid levels can affect the proper functioning of the shift solenoid.
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 12, 2024
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Code P0751 Acura Description

When the diagnostic trouble code P0751 appears on an Acura vehicle, it signifies that the shift solenoid 'A' is stuck off. Shift solenoids are crucial components of the transmission system, responsible for controlling the flow of transmission fluid and engaging different gears. In this case, when solenoid 'A' is stuck in the off position, it can lead to significant issues with the vehicle's shifting capabilities.

OBDII Code P0751 Acura - Shift Solenoid 'A' Stuck Off
P0751 Acura Code - Shift Solenoid 'A' Stuck Off

Common Causes of P0751 Acura

  1. Faulty shift solenoid 'A': The solenoid may be malfunctioning, causing it to remain stuck in the off position.
  2. Electrical issues: Wiring harness or connectors related to the shift solenoid may be damaged or disconnected.
  3. Low transmission fluid: Insufficient fluid levels can affect the proper functioning of the shift solenoid.
  4. Mechanical problems: Internal transmission components may be damaged or worn, affecting the solenoid's operation.
  5. Software or calibration issues: Problems with the vehicle's transmission control module (TCM) can also trigger this code.

Symptoms of P0751 Acura

  1. Delayed or rough shifting: The vehicle may experience delays or jerky movements when shifting gears.
  2. Erratic shifting: The transmission may shift unpredictably or inconsistently.
  3. Transmission slipping: The vehicle may struggle to maintain speed or may slip out of gear.
  4. Engine stalling: In severe cases, the engine may stall when attempting to shift gears.
  5. Decreased fuel efficiency: The vehicle may consume more fuel due to inefficient shifting patterns.

How to Fix P0751 Acura

  1. Diagnostic scan: Use an OBD-II scanner to confirm the presence of code P0751 and identify any additional related codes.
  2. Check transmission fluid: Ensure the transmission fluid level and condition are adequate, topping up or replacing if necessary.
  3. Inspect wiring and connectors: Check for any damaged wires or loose connections related to the shift solenoid.
  4. Test shift solenoid 'A': Test the solenoid's functionality using a multimeter to determine if it is receiving power and actuating properly.
  5. Replace shift solenoid 'A': If the solenoid is found to be faulty, replace it with a new one to restore proper transmission operation.

Cost to Fix P0751 Acura

The cost of repairing a shift solenoid 'A' that is stuck off typically ranges from $150 to $400, including parts and labor. However, prices can vary depending on the vehicle's make and model, the location of the repair shop, and the specific diagnosis and repair process required. It's advisable to consult with a professional mechanic for an accurate cost estimate tailored to your vehicle's needs.

Tech Notes for P0751 Acura

When the transmission solenoid is stuck off, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is very dirty, it is recommended to change the transmission fluid and if possible, remove the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a transmission mechanical failure, and that the transmission will need to be rebuilt or replaced.











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When is the Code Detected?

The P0751 code is detected when the gear required by the ECM does not match the actual gear when vehicle is driven.

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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.

Frequently Asked Questions about P0751 Acura Code

1. What does the OBDII code P0751 for an Acura mean?

The code P0751 in an Acura indicates an issue with the Shift Solenoid 'A' being stuck off.

2. What are the common symptoms of a Shift Solenoid 'A' Stuck Off issue in an Acura?

Common symptoms include harsh shifting, delayed or erratic shifting, transmission slipping, and the transmission may not shift at all.

3. What are some possible causes of the Shift Solenoid 'A' Stuck Off code in an Acura?

Potential causes include a faulty shift solenoid, low transmission fluid level, dirty or contaminated transmission fluid, electrical issues, or a mechanical problem within the transmission.

4. How serious is the P0751 OBDII code for an Acura?

Ignoring the P0751 code can lead to further transmission damage and potential safety hazards. It is important to address this issue promptly.

5. Can I continue driving my Acura with the P0751 code present?

It is not recommended to drive your Acura with the Shift Solenoid 'A' Stuck Off issue as it can cause further damage to your transmission. Seek professional help to diagnose and repair the problem.

6. How can I diagnose the Shift Solenoid 'A' Stuck Off issue in my Acura?

Diagnosis typically involves scanning the vehicle for codes, checking the transmission fluid level and condition, and testing the shift solenoid for proper operation.

7. What are some repair tips for fixing the P0751 code in an Acura?

Repair tips may include replacing the faulty shift solenoid, performing a transmission fluid flush and filter change, checking and repairing any damaged wiring, or seeking professional help for a thorough diagnosis.

8. Can I fix the Shift Solenoid 'A' Stuck Off issue in my Acura by myself?

Depending on your mechanical skills and access to tools, you may be able to replace the shift solenoid yourself. However, it is recommended to consult a professional if you are unsure or unfamiliar with transmission repairs.

9. How much does it typically cost to repair the Shift Solenoid 'A' Stuck Off issue in an Acura?

The cost of repair can vary based on the extent of the issue, the parts needed, and labor costs. It is advisable to get quotes from different mechanics or repair shops to compare prices.

10. How can I prevent the P0751 code from occurring in my Acura in the future?

Regular maintenance, such as changing the transmission fluid according to the manufacturer's recommendations, can help prevent issues like the Shift Solenoid 'A' Stuck Off code from occurring.

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