P0910 Gate Select Actuator Circuit/Open

P0910 indicates a gate select actuator circuit or open-circuit fault. The controller cannot complete the electrical path for the gate select actuator.

Code status

Needs verification

Not yet verified against SAE J2012_202509 / J2012DA. Treat unverified rows as a lookup aid, not repair authority.

System: Transmission
Scope: iso-sae-controlled-p0
Standard: SAE J2012 / ISO 15031-6
Source: legacy-import

Diagnostic boundary

A diagnostic trouble code reports that a monitored test failed. It does not prove one specific part is bad, and manufacturer logic can add vehicle-specific conditions.

Do not run repeated actuator commands if the circuit is open; verify wiring and load first.

Useful checks before replacing parts

Check actuator feed voltage, ground, driver command, resistance, current draw, connector condition, and continuity through the harness.
Inspect actuator wiring, module connector pins, transmission connector sealing, relay or fuse supply, and signs of fluid or water intrusion.
Compare gate command with position feedback to confirm whether the actuator is electrically open or mechanically unresponsive.

Related OBD-II codes

These nearby transmission entries can help compare wording and fault area. They may share the same verification status as the source database.