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P0913 OBD-II Trouble Code: Gate Select Actuator Circuit High

diagnostic check engine light

P0913 code definition

A P0913 trouble code indicates that the Powertrain Control Module (PCM) has detected a problem with the transmission gate select actuator circuit. Some other codes that might occur in conjunction with this trouble code include a P0910, P0911, and P0912 code.

What the P0913 code means

A P0913 trouble code signals that the gate select actuator circuit is running high. This usually results in the Check Engine light also illuminating, though on some models it takes multiple drive cycles for the Check Engine light to illuminate, while on other vehicle models no indicator light is illuminated.

What causes the P0913 code?

The most common cause of the storage of a P0913 trouble code is faulty wiring. This includes damage such as fraying or a loose connection. In addition, a blown fuse can cause the storage of a P0913 trouble code. Finally, while rare, a faulty PCM can also cause the storage of this code.

What are the symptoms of the P0913 code?

Some common symptoms of a P0913 trouble code include sluggish acceleration and stalling while idling. Drivers can also experience trouble with shifting and see a reduction in the fuel efficiency of their vehicle.

How does a mechanic diagnose the P0913 code?

To properly diagnose a P0913 trouble code, a mechanic should use an advanced OBD-II scanner and a digital volt/ohm meter. The mechanic must also perform the following steps while diagnosing the problem:

  • Visually inspect all wiring, connectors, and components associated with the gear shifter. The mechanic is looking for any damaged or disconnected wiring or connectors.
  • Download any freeze frame data or stored trouble codes to help in further diagnosis. The mechanic should keep in mind to treat trouble codes in the order they were stored.
  • The mechanic should clear the trouble code and test the system to see if the code returns.
  • If the code returns the mechanic should use a digital volt/ohm meter to test the voltage and ground at the gate select actuator circuit. If no signal is detected, the mechanic should disconnect the PCM and any related control modules, to prevent damage, and then test the continuity at the actuator circuit.
  • The mechanic should also test the continuity and ground of the gate select actuator switch with the volt/ohm meter.
  • Check the fuses to see if any are blown.
  • If all else checks out as good, the mechanic should then test the PCM to see if it has gone bad or needs reprogramming.
  • Finally, they will clear the trouble code and retest the system to see if the code returns.

Common mistakes when diagnosing the P0913 code

A common mistake made by mechanics when diagnosing a P0913 trouble code is to either overlook other issues that might be causing the code storage in favor of replacing any damaged or faulty wiring, or not looking at the wiring at all and assuming it is a component such as the PCM. Either mistake can lead to a misdiagnosis with the trouble code reappearing once the system is tested.

How serious is the P0913 code?

If left untreated, a P0913 trouble code can lead to problems with shifting the transmission. And while this might not initially present a serious issue, the problem can get worse over time. In addition, a P0913 trouble code is known to cause issues with the fuel economy of a vehicle that can cost you money.

What repairs can fix the P0913 code?

To fix a P0913 trouble code, a mechanic should do the following:

Need help with a P0913 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to 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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