P2855 fault code: what it means

P2855: Low clutch hydraulic circuit or seal fault. Possible slipping or delayed engagement.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

low clutch piston seal fault
seal ring wear
low ATF level

P2855 by make

Mazda

Low clutch hydraulic circuit or seal fault. Possible slipping or delayed engagement.

Usual causes: low clutch piston seal fault; seal ring wear; low ATF level

What the repair usually costs

Automatic transmission rebuild, 4/5-speed (car, sent to transmission specialist)NZ$4,310–NZ$8,050 · A$3,440–A$6,330

Not sure what P2855 means on your car? Ask Credov.

Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.