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P285B

Transmission shift fork actuator A - open circuit

P285B is described as “Transmission shift fork actuator A - open circuit” in the Generic OBD2 reference. Other reference families are shown below; select the scope relevant to your vehicle.

Manufacturer reference family

Changan: P285B

en

Shift solenoid valve 1 fault (low-end short circuit to power supply / low-end open circuit / low-end short circuit to ground / low-side current too high fault / low-side current too low fault / channel unexpected shutdown fault / MOS tube discharge current fault)

ru

TCU. Клапан соленоида переключения передач 1 (LV) - короткое замыкание на массу / короткое замыкание на плюс / обрыв цепи / слишком высокий или низкий ток / неожиданное отключение канала / неисправность тока разряда MOSFET транзистора).

Reference namespace
changan
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Changan.

26 profiles assigned this reference family

2 more related profiles are listed in the vehicle directory.

Generic OBD2

Generic OBD2: P285B

en

Transmission shift fork actuator A - open circuit

Reference namespace
obd2
Source revision
legacy-2.2.20

Generic OBD2 definition; confirm the protocol and vehicle-specific service information.

What should I check before using this definition?

Keep the full code, module, status and freeze-frame data. Confirm the vehicle’s make, model, year and current manufacturer service information before choosing a repair. This entry does not identify a failed part by itself.

Organize a scan report or recording
Source and applicability

OBD Lens production library legacy-owner-2026-10-09-v81. This is a scoped technical reference, not a scan of your car. A catalog relationship does not certify that every ECU, year or engine returns the same signal or code definition.

Read the reference method

OBD Lens reference library · catalog legacy-owner-2026-10-09-v81. Sources and scope