P285F
Shift Fork B Actuator Circuit/Open
P285F is an OBD-II diagnostic trouble code meaning: Shift Fork B Actuator Circuit/Open. Common causes: open or short circuit in the actuator circuit, oxidation of contacts in connectors. Estimated repair cost: $17–89.
Symptoms
- Difficulty shifting gears
- Transmissions are not included
- Clicking or knocking noises when shifting
- Preferential use of even or odd gears only
- Check Engine Light Is On
Causes
- Open or short circuit in the actuator circuit
- Oxidation of contacts in connectors
- Actuator relay malfunction
- Mechanical failure of the actuator
- Problems with the transmission control unit
How to Fix
- Checking the integrity of wiring and contacts
- Diagnostics of actuator operation
- Checking control circuit power and ground
- Actuator control relay testing
- Diagnostics of the transmission control unit
Related codes
Error P285F by Vehicle Brand
FAQ
What does the P285F code mean?
P285F is an OBD-II diagnostic trouble code that indicates: Shift Fork B Actuator Circuit/Open
What causes a P285F error code?
The most common causes of P285F include: Open or short circuit in the actuator circuit; Oxidation of contacts in connectors; Actuator relay malfunction; Mechanical failure of the actuator.
How do I fix a P285F diagnostic trouble code?
To fix P285F: Checking the integrity of wiring and contacts. Diagnostics of actuator operation. Checking control circuit power and ground. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P285F?
Do not drive — repair immediately
How much does it cost to fix P285F?
The estimated repair cost for P285F is $17–89. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat