P0910 code meaning
Gate Select Actuator Circuit/Open
Powertrain system Generic code P09xx codes Check engine light
What P0910 means
Concerns the drive circuit of the gate select actuator, the motor or valve that moves the shift mechanism of an automated manual gearbox sideways from gate to gate. The code sets when the control module finds this output open or electrically faulty, for example when no current flows although the driver stage is switched on. No manufacturer documents this code publicly. Isuzu and Hyundai/Kia patents describe select and shift actuators as electric motors fed by the transmission controller; older and heavy-duty systems use hydraulic or pneumatic select cylinders with solenoid valves. CARB requires circuit checks on such outputs. P0911 to P0913 are the range, low and high variants, P0909 a select movement that misses its target. Without the select actuator the gearbox cannot change gates and stays in its current gear or neutral.
P0910 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor0.5 to 4 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0910
- Check engine or transmission warning light on
- Gearbox cannot change between gates, only some gears available
- Vehicle may stay in neutral and not drive off
Common causes of P0910
- Most likelyOpen winding or worn brushes in the select motor
- PossibleBroken actuator wire or terminal pushed out of the connector
- PossibleCorroded actuator connector near the gearbox
- Less likelyFaulty actuator driver stage in the transmission control module
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Gate select actuatorWiring harnessTCM
What each part of P0910 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 9 | Area: transmission. |
| 10 | The exact fault in that area. |
What to do next
- Note P0910 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0910
What does P0910 mean?
P0910 means "Gate Select Actuator Circuit/Open". Concerns the drive circuit of the gate select actuator, the motor or valve that moves the shift mechanism of an automated manual gearbox sideways from gate to gate. It is a generic code, so it means the same on every make.
Is it safe to drive with P0910?
Drive gently and only to a workshop. With P0910 the car can go into limp mode (reduced power) to protect itself.
Will P0910 fail an emissions test?
Yes, it can. P0910 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P0910 to fix?
Difficulty: hard. A typical repair takes 0.5 to 4 hours of work. This is a job for a workshop.
Will P0910 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.