P0902 Code: Clutch Actuator Circuit Low

The clutch locks the transmission and the engine together. On modern vehicles with a dual-clutch automatic transmission, the clutch can be electronically controlled by the transmission control module (TCM). P0902 is a generic trouble code related to a fault in the clutch actuator electrical circuit.

What Does the P0902 Code Mean?

Diagnostic trouble code (DTC) P0902 stands for “Clutch Actuator Circuit Low.” The code is set once the PCM detects a low voltage or resistance condition in the clutch actuator circuit.

The clutch actuator circuit activates and disengages the clutch or clutches on a dual-clutch automatic transmission. Some vehicles are configured with two hydraulic clutches, one for odd gears and the other for even gears. Newer models could have as many as six to nine gears.

This design allows for smooth and seamless gear changes, similar to that of a traditional automatic transmission.

If the TCM, engine control module (ECM), or powertrain control module (PCM) detects a low voltage or resistance problem in the clutch actuator circuit, it could set code P0902. The check engine or transmission warning light could also illuminate.

Note: The definition of code P0902 can differ according to the vehicle manufacturer. Check the appropriate repair manual or repair database for the exact code definition.

What are the Common Causes of the P0902 Code?

• Faulty clutch motor
• Clutch actuator is stuck and won’t return
• Bad clutch position sensor
• Circuit problems, such as a damaged wire or poor connection
• TCM failure

What are the Common Symptoms of the P0902 Code?

• Illuminated check engine light
• Shift quality changes
• Might switch to limp mode

How to Diagnose the P0902 Code

Although code P0902 is a generic trouble code, its steps for diagnosis and repair could differ depending on the vehicle. So if you are unfamiliar with the process of troubleshooting, it’s best to leave it to the professionals. However, if you are confident that you can handle the problem on your own, then you can go ahead and do it yourself.

How to Fix the P0902 Code

Attempting to fix DTC P0902 can be frustrating without the right tools and technical knowledge. Under these circumstances, it’s best to have a certified mechanic do the job for you to ensure that all steps and protocols are followed correctly.

If you plan on working on your vehicle on your own, make sure you’re equipped with the correct repair information. Keep in mind that there is no such thing as an umbrella fix that works for all makes and models. So make sure you refer to vehicle-specific guides like those from Chilton or an ALLDATA subscription before attempting any fixes.

Where To Get Replacement Parts To Fix the P0902 Code

Have you figured out what’s causing your vehicle to log the P0902 code and how you’re going to fix it? Because if not, then you might want to put that on the top of your to-do list. The P0902 code is often caused by a faulty clutch motor or a bad clutch position sensor, which can cause your vehicle to stall and leave you stranded. Luckily, ordering new parts is easy with CarParts.com.

We have a wide selection of top-quality clutch kits and clutch sensor replacements. At CarParts.com, we only source our products from the best of the best, so you don’t have to worry about low-quality parts at all. Plus, our website’s easy to navigate, so you can find the right product for your vehicle in no time!

Don’t wait until your vehicle stalls and leaves you stranded somewhere. Get a new clutch kit or clutch position sensor at CarParts.com today.