AutoCodes – Honda – P0751 Honda

P0751 Honda Code - Shift Solenoid 'A' Stuck Off

Quick Answer

Shift solenoid valve A is turned ON or OFF by the Transmission Control Module (TCM) in response to signals sent from the park/neutral position (PNP) switch, vehicle speed and Engine Control Module (ECM) (throttle opening). Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty shift solenoid 'A' valve. 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 Honda indicates Shift Solenoid 'A' Stuck Off.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty shift solenoid 'A' valve.
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.

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Code Popularity 11,963

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 02, 2022

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code P0751 Honda Description

OBDII Code P0751 Honda - Shift Solenoid 'A' Stuck Off - AutoCodes.com — P0751 Honda Code - Shift Solenoid 'A' Stuck Off

What does this mean?

What are the Possible Causes of the DTC P0751 Honda?

Low transmission fluid level
Dirty transmission fluid
Faulty shift solenoid 'A' valve
Shift solenoid 'A' valve harness or connectors
Shift solenoid 'A' valve circuit is open or shorted

How to Fix the DTC P0751 Honda?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

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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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0751 Honda code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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 Honda Code

1. What are the common symptoms of OBDII code P0751 in a Honda, indicating Shift Solenoid 'A' Stuck Off?

- Common symptoms include delayed or harsh shifting, failure to shift gears, and the transmission staying in one gear.

2. What causes the Shift Solenoid 'A' Stuck Off code (P0751) in a Honda?

- The code is often triggered by a faulty shift solenoid 'A', low transmission fluid levels, a clogged transmission filter, or wiring issues.

3. How can I diagnose the Shift Solenoid 'A' issue in my Honda if I get the OBDII code P0751?

- A professional diagnostic scan tool can be used to monitor the shift solenoid 'A' operation and test its electrical components for proper functioning.

4. Can I continue driving my Honda with the P0751 OBDII code indicating Shift Solenoid 'A' Stuck Off?

- It is not recommended to continue driving with this code as it can lead to further transmission damage and potential safety hazards.

5. What are some tips for repairing the Shift Solenoid 'A' issue in a Honda with code P0751?

- Repair options may include replacing the faulty shift solenoid 'A', checking and topping up transmission fluid, inspecting the transmission filter, and repairing any damaged wiring.

6. How much does it typically cost to repair the Shift Solenoid 'A' problem causing the P0751 code in a Honda?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from $150 to $500 for parts and labor.

7. Are there any preventive maintenance measures to avoid encountering the P0751 code in a Honda?

- Regular transmission fluid checks and changes, along with timely maintenance of the transmission system, can help prevent issues leading to the P0751 code.

8. Will resetting the OBDII code P0751 temporarily resolve the Shift Solenoid 'A' problem in a Honda?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing the Shift Solenoid 'A' malfunction.

9. Can a DIY enthusiast with basic mechanical skills repair the Shift Solenoid 'A' issue causing the P0751 code in a Honda?

- While some may attempt the repair themselves, it is recommended to consult a professional mechanic with experience in transmission repairs to ensure proper diagnosis and resolution.

10. How long does it take to repair the Shift Solenoid 'A' Stuck Off issue in a Honda with code P0751?

- The repair time can vary depending on the complexity of the issue and the availability of parts, but it may take a few hours to a full day to fix the problem.