Engine Control System: Fail-Safe: Description

WARNING: This page is about a different variant/trim than selected.

When a DTC is detected, ECM executes a mode (in the Fail-safe mode) applicable to the DTC. The fail-safe mode has the preset traveling control mode (accelerator angle variation and engine output limit) and device fix mode.

Fail safe mode		Vehicle behavior	Pattern
Traveling control mode	Accelerator angle variation control	ECM controls the accelerator pedal depression speed to make it slower than actual speed. This causes a drop in accelerating performance and encourages the driver to repair malfunction. NOTE: ECM does not control the accelerator pedal releasing speed.	A
	Engine output control	ECM reduces the engine output, according to the rise in engine speed. This reduces the vehicle speed to encourage the driver to repair malfunction. Driving at 70 km/h (43 MPH) or more is possible * * : This value is a reference value converted from engine power to vehicle speed. Actual power limitation value differs due to the malfunctioning part and driving condition.	B
	Engine output control	ECM reduces the engine output, according to the rise in engine speed. This reduces the vehicle speed to encourage the driver to repair malfunction. Driving at 40 km/h (25 MPH) or more is possible * * : This value is a reference value converted from engine power to vehicle speed. Actual power limitation value differs due to the malfunctioning part and driving condition.	C
Device fix mode		This mode fixes the IVT control solenoid valve and the EVT control solenoid valve in the reference position. A control signals is not transmitted to EGR volume control valve and the EGR volume control is deactivated. The Intake manifold runner control valve motor is turned OFF (Intake manifold runner control valve opens).	D
Combustion control mode	Stratified charge combustion control at starting	No stratified charge combustion at starting (cold start).	E
	Idle speed control	Stops feedback control of idle speed and controls with specified speed.	F
	Recovery speed control at decelerating	Stops recovery speed control by the fuel cut at decelerating and controls with specified speed.
	Idle neutral control	Stops idle neutral control.
	Ignition timing correction control	Partially controls ignition timing control.	G
	Retardation control	Controls ignition timing delay control in the intermediate water temperature range.	G