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P0910 OBD-II Trouble Code: Gate Select Actuator Circuit/Open

check engine light

P0910 trouble code definition

The P0910 OBD-II fault code registers when the Engine Control Module (ECM) detects that the gate select actuator circuit is open instead of closed. This circuit relates broadly to the powertrain system of a vehicle and more specifically to the transmission controls.

What the P0910 code means

At its most basic level, the P0910 code occurs when an open circuit in the gate select actuator is detected by the ECM. This open circuit is most likely caused by a malfunction within the transmission controls of a vehicle.

A gate select actuator controls how the cylinders within a transmission select a gear and how a catching device fixes that gear. If the gate select actuator fails to select or fix the necessary gear for driving conditions, there may be slippage or other malfunctions in how the transmission shifts between gears.

This code may also be accompanied by the following related codes involving the gate select actuator: P0911, P0912, and P0913.

What causes the P0910 code?

An anomaly within the function of the gate select actuator triggers an open circuit signal. When the ECM picks up this signal, it registers the P0910 code and illuminates on the Check Engine Light on the dashboard.

What are the symptoms of the P0910 code?

Once the P0910 code causes the Check Engine Light to come on the dashboard, the vehicle may display an array of symptoms, such as:

How does a mechanic diagnose the P0910 code?

In order to diagnose the P0910 OBD-II trouble code, a trained mechanic must use a specialized scan tool to verify the code’s existence. This scan tool connects to the ECM to collect data about the functions of a vehicle’s various systems and reports any findings that are outside accepted parameters. Using professional reference manuals, the mechanic can then use those findings to determine the cause of the P0910 trouble code registering. Further scans or a manufacturer pinpoint test may also be necessary to diagnose the fault code properly.

Common mistakes when diagnosing the P0910 code

After the P0910 OBD-II trouble code has registered, it is common to make the following mistakes:

  • Failing to verify the gate select actuator circuit is open

  • Failing to perform a thorough visual inspection of the gate select actuator and related parts of the transmission system

  • Failure to clear the P0910 OBD-II trouble code once a mechanic has repaired or resolved the issue

How serious is the P0910 code?

Improper shifting within a transmission can not only greatly affect fuel efficiency but it can adversely affect other systems and parts as well. Therefore, it is advised to seek assistance from a qualified technician in diagnosing and repairing the P0910 code once it has registered.

What repairs can fix the P0910 code?

After the P0910 OBD-II trouble code has been verified, one or more of the following repairs may be needed:

Additional comments for consideration regarding the P0910 code

Any time an OBD-II fault code like P0910 registers, it can take up to several hours to effectively diagnose the nature and cause of the code. In addition to verifying the code with a specialized scan tool that has broader capabilities than those found in auto parts stores, a mechanic may have to perform multiple scans and other hands-on tests to ensure the issue is satisfactorily resolved.

Need help with a P0910 code?

YourMechanic can put you in touch with an experienced mechanic in possession of the proper tools to diagnose and repair the P0910 code in your vehicle. If necessary, that mechanic can even come to your home or office to perform the job. Get a quote for costs and book your appointment online or speak with a service advisor at 1-800-701-6230.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
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