AutoCodes – BMW – P0756 BMW

P0756 BMW Code - Shift Solenoid 'B' Open Circuit

Quick Answer

Shift solenoid valve B 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 'B' 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: P0756 BMW indicates Shift Solenoid 'B' Open Circuit.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty shift solenoid 'B' 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 12,256

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0756 BMW Description

OBDII Code P0756 BMW - Shift Solenoid 'B' Open Circuit - AutoCodes.com — P0756 BMW Code - Shift Solenoid 'B' Open Circuit

What does this mean?

What are the Possible Causes of the DTC P0756 BMW?

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

How to Fix the DTC P0756 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 P0756 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 P0756 BMW Code

1. What does the OBDII code P0756 mean on a BMW?

The P0756 code indicates a problem with the Shift Solenoid 'B' circuit, specifically that it is stuck in the "off" position or has an open circuit.

2. What are the common symptoms of the P0756 code on a BMW?

Symptoms include erratic shifting, transmission slipping, poor fuel economy, the transmission being stuck in one gear, and the illumination of the check engine light.

3. What causes the P0756 code in BMW vehicles?

Common causes include a faulty shift solenoid 'B,' low or dirty transmission fluid, damaged wiring or connectors in the solenoid circuit, or a malfunctioning transmission control module (TCM).

4. Can I drive my BMW with the P0756 code?

Driving with the P0756 code is not recommended, as it can lead to further damage to the transmission and may result in unsafe driving conditions.

5. How do I diagnose the P0756 code on my BMW?

Diagnose the issue by checking the transmission fluid level and condition, inspecting the wiring and connectors for damage, and testing the operation of the shift solenoid 'B.'

6. How much does it cost to repair the P0756 code on a BMW?

Repair costs can vary depending on the cause, ranging from $100â€“$300 for solenoid replacement to over $1,000 if thereâ€™s significant transmission damage.

7. Can low transmission fluid cause the P0756 code in a BMW?

Yes, low or dirty transmission fluid can reduce hydraulic pressure, causing the shift solenoid to malfunction and triggering the P0756 code.

8. How do I fix the P0756 code on my BMW?

Fixes include replacing the faulty shift solenoid 'B,' repairing damaged wiring or connectors, flushing and refilling the transmission fluid, or reprogramming the TCM if necessary.

9. Will resetting the check engine light clear the P0756 code?

Resetting the light may temporarily clear the code, but it wonâ€™t fix the underlying issue. The code will likely return if the problem is not repaired.

10. Is the P0756 code specific to BMW vehicles?

No, the P0756 code is a generic OBDII code that can appear in many vehicles, but troubleshooting and repair steps may vary depending on the make and model.