P285F
Shift Fork B Actuator Circuit/Open
The control circuit for shift fork B actuator reports a actuator circuit/open condition. Fork engagement cannot be commanded reliably.
The control circuit for shift fork B actuator reports a actuator circuit/open condition. Fork engagement cannot be commanded reliably.
Common causes
- high
Open in actuator control wire
One of the most commonly reported causes for this code — check this first.
Typical part cost: $440-2200
- medium
Open actuator coil
A plausible cause — test and verify before replacing parts.
Typical part cost: $440-2200
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does P285F mean?
P285F means "Shift Fork B Actuator Circuit/Open". It is a generic OBD-II code that points to a fault in the auxiliary emission controls.
What are the most common causes of P285F?
open in actuator control wire; open actuator coil; pin pushed back out of connector body — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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