Engine Fault Code P0950

The Engine Fault Code P0950 usually relates to the auto shift manual control circuit. This code may pop up for several reasons, and while the specifics can vary by manufacturer, here are some common causes:

1. Faulty Shift Control Module: The shift control module manages the manual shifting of the transmission. If it fails, it can trigger this code.

2. Wiring Issues: Damaged or corroded wiring in the auto shift manual control circuit can cause poor connections, leading to this fault code.

3. Bad Shift Lever Assembly: If the shift lever or its components are damaged or malfunctioning, it can lead to this code being set.

4. Transmission Control Module (TCM) Problems: Issues with the TCM can also trigger this code, as it communicates with the shift control module.

5. Software Glitches: Sometimes, the vehicle`s software may have bugs that affect the shifting system, leading to this code.

6. Faulty Sensors: If there are sensors related to the transmission that are not working properly, they can cause this code to appear.

Manufacturer-Specific Considerations:

– Porsche: In some Porsche models, the issue might be more related to the PDK (Porsche Doppelkupplung) system, where specific software updates might be necessary.

– Mini: For Mini vehicles, the problem could be tied to the electronic throttle control, which is integrated with the transmission system.

– Mercedes: Mercedes models might have additional features that require a specific diagnostic tool to read and reset the fault code effectively.

– Audi: Audi vehicles might have more complex electronic systems, where a full scan of the vehicle`s modules is needed to pinpoint the issue.

– Jaguar and Land Rover: In these brands, the issue may often involve the Terrain Response system or other electronic aids that affect transmission behavior.

If you encounter this code, its a good idea to start with a thorough inspection of the wiring and connectors, followed by checking the modules and sensors involved. Always consider using a professional diagnostic tool to get more detailed information about the issue.

The Engine Fault Code P0950 relates to issues with the Auto Shift Manual Control Circuit. This code can appear in various vehicles, including European brands like Porsche, Mini, Mercedes, Audi, Jaguar, and Land Rover. Heres how to troubleshoot and fix this issue, noting that steps can vary by manufacturer.

General Steps to Fix P0950:

1. Check the Owners Manual: Always start by consulting the vehicles owner manual for specific guidance related to your model.

2. Inspect Wiring and Connectors:
– Look for any damaged wires or loose connectors in the auto shift manual control circuit.
– Pay close attention to the wiring harness that connects to the transmission control module.

3. Examine the Shift Lever:
– Ensure the shift lever is functioning properly and is not stuck or damaged.
– Check for any mechanical issues that might prevent the lever from moving freely.

4. Test the Transmission Control Module (TCM):
– Use an OBD-II scanner to check for additional codes.
– If the TCM is faulty, it may need to be replaced or reprogrammed.

5. Check for Fluid Issues:
– Verify that the transmission fluid is at the correct level and in good condition.
– Low or dirty fluid can affect shifting and could trigger this code.

6. Clear the Code:
– After making repairs, use an OBD-II scanner to clear the code.
– Take the vehicle for a test drive to see if the code returns.

Manufacturer-Specific Considerations:

– Porsche: Check for software updates for the TCM, as they may resolve issues without hardware changes.

– Mini: Look for known issues with the shift mechanism, as some models have recalls or common faults.

– Mercedes: Pay special attention to the wiring harness, as some models have issues with harness chafing or damage.

– Audi: Consider the possibility of a faulty gear selector switch, which may need replacement.

– Jaguar: Look for issues with the transmission fluid pump, as this can affect shifting and trigger the code.

– Land Rover: Check for updates on the TCM software, as Land Rover often releases patches for shifting issues.


Fixing the P0950 code involves a systematic approach to checking the wiring, connectors, and components related to the auto shift manual control circuit. Always refer to the specific service manual for your vehicle for the most accurate guidance. If youre not comfortable with these steps, consider seeking help from a professional mechanic.

Code P0950 refers to a problem with the auto shift manual control circuit. This code can indicate issues with the transmission control system, which might affect how your vehicle shifts gears.

Driving with this code can be risky for a few reasons:

1. Transmission Issues: You may experience rough shifting or the transmission may not shift at all. This can lead to poor performance and could potentially cause damage to the transmission over time.

2. Safety Concerns: If the vehicle has trouble shifting, it could lead to unexpected behavior, such as sudden acceleration or deceleration, which can be dangerous.

3. Manufacturer Differences: Different manufacturers may have different implications for this code. For example:
– Porsche: If you see this code in a Porsche, it might affect the PDK (Porsche Doppelkupplung) transmission, leading to performance issues.
– Mini: In a Mini, this code might affect the automatic transmission`s ability to shift smoothly.
– Mercedes: Mercedes vehicles can have complex transmission systems, and ignoring this code might lead to costly repairs.
– Audi: Similar to Mercedes, Audi vehicles can experience significant issues if this code is not addressed.
– Jaguar and Land Rover: These brands often have advanced transmission systems, and driving with this code could lead to serious transmission problems.

It`s generally not safe to drive with code P0950. It`s best to have your vehicle checked by a qualified mechanic as soon as possible to avoid further damage and ensure your safety on the road.