#
VARIABLE TUMBLE CONTROL SYSTEM (VTCS)

id014000176600

## Outline

• The function of the VTCS is the same as that of the current Mazda6 (GG, GY) models, except for the following:

  - Output devices
  - Operation conditions

## Operation

### Operation conditions

  • When all of the following conditions have been met, the PCM activates the circuit on the close-side of the VTCS shutter valve actuator. The VTCS shutter valve closes according to the following:
  - Engine speed: Less than 3,250 rpm
  - Engine coolant temperature: Less than 60°C {140°F}
  - Throttle opening angle: Less than specified value (fluctuates depending on engine speed)