Mercedes Error Codes P1856 and P240C

Automatic gear selector GRM (Mercedes A-class W168 / Vaneo W414 )

TCUs

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What They Mean and How to Fix Them

What do the Mercedes Error Codes P1856 and P240C mean?

The Mercedes error code P1856 is also known as "Selector Lever Position Detection Failed," and can be found in various models with automatic transmissions.

It frequently appears alongside error code P240C, indicating an implausible
Controller Area Network (CAN) signal for the selector lever position from component N15/5 (electronic selector lever control module).

In simpler terms, there's an issue with detecting the position of the gear selector, and this error message appears on the vehicle's diagnostic system.

Which models do these error codes occur in?

What causes Mercedes error codes P1856 and P240C?

The most common cause of the error codes is a defective automatic transmission selector lever.

What are the symptoms associated with Mercedes error codes P1856 and P240C?

The error codes P1856 and P240C lead to issues with gear selection, causing incorrect display or failure to recognise the selector lever position on the dashboard. Common symptoms include difficulty shifting into reverse (R) or park (P), challenges or inability to shift gears, and getting stuck in a specific gear.

Solutions for fixing error codes P1856 and P240C

ACTRONICS provides a comprehensive solution for repairing this selector lever issue. You can easily select the Gear Selector for your specific vehicle, complete your details, and submit the overhaul order.

Trust ACTRONICS with your repair needs

At ACTRONICS, our remanufacturing process efficiently resolves malfunctions and fault codes. Our experienced specialists know how to repair faulty ABS’, ECUs, instrument clusters, and even TCUs.

Our specialists meticulously inspect and refurbish the part, replacing any faulty components with upgraded versions. Following a thorough final test, the reconditioned part is promptly returned within two working days.

We take pride in delivering top-quality service and unmatched expertise to every client. We've continually refined our processes over time, guaranteeing long-lasting, exceptional results that fit your specific timeline. For complete peace of mind, all our work comes backed by a comprehensive two-year warranty.

For dealers and garages
If you own a garage or dealership, you can create an account register your order and send the part to us. We aim to return the remanufactured part within two working days. This way you not only save money, but you also contribute to the environment by reducing valuable raw materials.

For private individuals
If you are inquiring about your own personal car, you will need to go through a certified ACTRONICS Service Point. You can find your closest ACTRONICS-approved garage here.