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P3497 fault code: what it means

P3497: Variable Cylinder Management (VCM) fault on bank 2 of a Honda V6: the rocker arm oil pressure switch reads stuck off, so cylinder switching is not confirmed.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

  1. low engine oil level
  2. bank 2 rocker arm oil pressure switch
  3. faulty VCM oil control solenoid
  4. switch wiring or connector

P3497 by make

Honda

Variable Cylinder Management (VCM) fault on bank 2 of a Honda V6: the rocker arm oil pressure switch reads stuck off, so cylinder switching is not confirmed.

Usual causes: low engine oil level; bank 2 rocker arm oil pressure switch; faulty VCM oil control solenoid; switch wiring or connector

Not sure what P3497 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.