Code result
P284B
Shift Fork C Stuck
High severity
What it means
Shift fork C cannot leave its current engagement position when the actuator commands movement. Mechanical jam or actuator without travel.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Shift fork mechanically jammed
highOne of the most commonly reported causes for this code — check this first.
Synchroniser teeth damaged
mediumA plausible cause — test and verify before replacing parts.
Related help
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