P1890 fault code: what it means

P1890: CVT shift control system problem. Ratio not changing as commanded; may judder or slip.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

CVT control valves
low or old CVT fluid
internal CVT wear

P1890 by make

Honda

CVT shift control system problem. Ratio not changing as commanded; may judder or slip.

Usual causes: CVT control valves; low or old CVT fluid; internal CVT wear

What the repair usually costs

CVT fluid service (car)NZ$250–NZ$580 · A$250–A$550
CVT fluid and filter service (SUV / Subaru / X-Trail)NZ$420–NZ$880 · A$400–A$830

Not sure what P1890 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.