AutoCodesBMW – P0751 BMW

P0751 BMW Code - Shift Solenoid 'A' Open Circuit

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 BMW indicates Shift Solenoid 'A' Open Circuit.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 13,335
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 08, 2019
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Code P0751 BMW Description

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). Gears will then be shifted to the optimum position.
OBDII Code P0751 BMW - Shift Solenoid 'A' Open Circuit - AutoCodes.com
P0751 BMW Code - Shift Solenoid 'A' Open Circuit

What are the Possible Causes of the DTC P0751 BMW?

  • 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 BMW?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0751 BMW 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 BMW Code

1. What does the OBDII code P0751 mean on a BMW?

P0751 indicates a problem with Shift Solenoid 'A' in the transmission, specifically an open circuit or failure to perform as expected.

2. What are the common symptoms of a P0751 code in a BMW?

Symptoms may include difficulty shifting gears, transmission staying in one gear (limp mode), poor fuel efficiency, or the check engine light being illuminated.

3. What causes the P0751 code in a BMW?

Common causes include a faulty shift solenoid 'A', damaged wiring or connectors, low or dirty transmission fluid, or internal transmission issues.

4. Can I drive my BMW with a P0751 code?

Driving with this code can cause further damage to the transmission. It's best to address the issue promptly to avoid costly repairs.

5. How do I fix the P0751 code on a BMW?

Repairs may involve replacing the shift solenoid 'A', repairing damaged wiring, cleaning or replacing the transmission fluid, or diagnosing internal transmission problems.

6. How can I check if the shift solenoid 'A' is faulty?

A mechanic can use a multimeter to test the solenoid's electrical resistance and verify its operation using diagnostic equipment.

7. Does low transmission fluid trigger the P0751 code?

Yes, low or contaminated transmission fluid can affect solenoid performance and trigger the P0751 code.

8. Is a transmission flush necessary to fix the P0751 code?

If the issue is related to dirty or contaminated fluid, a transmission flush may resolve the problem. However, it won't fix electrical or mechanical issues.

9. What tools are needed to diagnose the P0751 code?

Tools like an OBDII scanner, multimeter, and possibly a transmission pressure gauge are commonly used for diagnosing this code.

10. How much does it cost to repair a P0751 code on a BMW?

Repair costs vary depending on the cause but may range from $150–$500 for solenoid replacement and up to $2,000 for internal transmission repairs.

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