VR30DDTT engine: Fail-Safe

NOTE: Any of the following fail-safe is applied.

Fail safe mode	Vehicle behavior
Device fix mode	Fixes electric intake valve timing control motor in the reference position. Fixes exhaust valve timing control solenoid valve in the reference position.
Combustion control mode	No stratified charge combustion at starting (cold start).

Fail safe mode	Vehicle behavior
Device fix mode	Fixes electric intake valve timing control motor in the reference position. Fixes exhaust valve timing control solenoid valve in the reference position.
Combustion control mode	Stops feedback control of idle speed and controls with specified speed. Stops recovery speed control by the fuel cut at decelerating and controls with specified speed.