OBD Guide

P285D

Shift Fork A Actuator Circuit Low

P285D is an OBD-II diagnostic trouble code meaning: Shift Fork A Actuator Circuit Low. Common causes: open or short circuit in the drive circuit, drive solenoid valve malfunction. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$17–89 (est.)

Symptoms

  • Gear shifting problems
  • Check Engine light comes on
  • Switching to emergency mode of the gearbox
  • Jerks when shifting gears
  • Power Loss

Causes

  • Open or short circuit in the drive circuit
  • Drive solenoid valve malfunction
  • Wiring harness damage
  • Transmission control unit malfunction
  • Mechanical jamming of the shift fork

How to Fix

  1. Check the integrity of the drive circuit
  2. Check the operation of the drive solenoid valve
  3. Inspect the wiring harness for damage
  4. Check the operation of the transmission control unit
  5. Carry out diagnostics of the mechanical part of the shift fork

Related codes

Error P285D by Vehicle Brand

FAQ

What does the P285D code mean?

P285D is an OBD-II diagnostic trouble code that indicates: Shift Fork A Actuator Circuit Low

What causes a P285D error code?

The most common causes of P285D include: Open or short circuit in the drive circuit; Drive solenoid valve malfunction; Wiring harness damage; Transmission control unit malfunction.

How do I fix a P285D diagnostic trouble code?

To fix P285D: Check the integrity of the drive circuit. Check the operation of the drive solenoid valve. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P285D?

Do not drive — repair immediately

How much does it cost to fix P285D?

The estimated repair cost for P285D is $17–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat