Fail safe

Description

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	Fail safe 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
Traveling control mode	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 (44 MPH) or more is possible. NOTE: 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
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. The Intake manifold runner control valve motor is turned OFF (Intake manifold runner control valve opens).	C
Combustion control mode	Stratified charge combustion control at starting	No stratified charge combustion at starting (cold start).	D
	Idle speed control	Stops feedback control of idle speed and controls with specified speed.	E
	Recovery speed control at decelerating	Stops recovery speed control by the fuel cut at decelerating and controls with specified speed.	E
	Ignition timing correction control	Partially controls ignition timing control.	F
	Retardation control	Controls ignition timing delay control in the intermediate water temperature range.	F

Fail Safe List

x: Applicable, -: Not applicable

DTC No.	Detected items	Vehicle behavior
		Pattern						Others
		A	B	C	D	E	F	Others
U012E, U042F	Engine communication	-	-	x	x	-	-	ECM stops the electric valve timing control. (The camshaft returns to the position of most retard angle.)
U012E, U042F	Engine communication	-	-	x	x	x	-
P0010, P0020	Electric intake valve timing control module	-	-	x	x	-	-	ECM stops the electric valve timing control. (The camshaft returns to the position of most retard angle.)
P0010, P0020	Electric intake valve timing control module	-	-	x	x	x	-
P0011, P0012, P0021, P0022	Intake valve timing control	-	-	x	-	-	-	ECM stops the electric valve timing control. (The camshaft returns to the position of most retard angle.) NOTE: When VTC mechanism sticks, camshaft position does not change from position of stuck angle.
P0016, P0018	Intake valve timing control	-	-	-	-	-	-
P0014, P0015, P0017, P0019, P0024, P0025	Exhaust valve timing control	-	-	x	-	-	-	-
P0078, P0084	Exhaust valve timing control solenoid valve	-	-	x	-	-	-	-
P0087, P0088	Fuel rail pressure control	x	-	-	x	-	-	-
P0087, P0088	Fuel rail pressure control	x	x	x	x	-	-	-
P0090	High pressure fuel pump	x	x	x	x	-	-	-
P0101, P010B	Mass air flow sensor	x	-	-	x	-	-	-
P0101, P010B		x	x	x	x	x	x	-
P0102, P0103, P010C, P010D		x	x	x	x	x	x	-
P0117, P0118	Engine coolant temperature sensor	-	-	-	x	x	-	-
P0122, P0123, P0222, P0223, P0227, P0228, P1239, P2132, P2133, P2135	Throttle position sensor	-	-	x	-	-	-	The ECM controls the electric throttle control actuator in regulating the throttle opening in order for the idle position to be within +10 degrees. The ECM regulates the opening speed of the throttle valve to be slower than the normal condition. So, the acceleration will be poor.
P0171, P0172, P0174, P0175	Fuel injection system	x	-	-	x	x	-	-
P0190	Fuel rail pressure sensor	x	-	x	x	x	-	-
P0191, P0192, P0193	Fuel rail pressure sensor	x	-	-	x	-	-	-
P0197, P0198	Engine oil temperature sensor	-	-	-	-	-	-	Exhaust valve timing control does not function.
P0201, P0202, P0203, P0204, P0205, P0206	Fuel injector	x	x	-	x	-	-	-
P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271, P0273, P0274, P0276, P0277	Direct fuel injector	x	-	x	x	-	-	-
P0300, P0301, P0302, P0303, P0304, P0305, P0306	Misfire	x	-	-	x	x	-	-
P0335	Crankshaft position sensor 1	-	-	x	x	-	-	-
P0335	Crankshaft position sensor 1	-	-	x	x	x	-	-
P0340, P0345	Intake camshaft position sensor	-	-	x	x	-	-	-
P0340, P0345		-	-	x	x	x	-	-
P1140, P1145		x	-	x	x	x	x	-
P0365, P0390	Exhaust camshaft position sensor	-	-	x	-	-	-	-
P0500	Vehicle speed sensor	x	-	-	x	x	-	-
P0524	Engine oil pressure	-	-	-	-	-	-	ECM illuminates engine oil pressure warning lamp on the combination meter. Engine speed will not rise more than 4000 RPM due to the fuel cut. Fail-safe is canceled when ignition switch OFF → ON.
P052A, P052B, P052C, P052D	Intake valve timing control	-	-	x	-	-	-	ECM stops the electric valve timing control. (The camshaft returns to the position of most retard angle.) NOTE: When VTC mechanism sticks, camshaft position does not change from position of stuck angle.
P059F	Active grille shutter	-	-	-	-	-	-	When a voltage and temperature related malfunction is detected, the active grille shutter stops at the position detection. Except for the above case, operates the active grille shutter to fully opened position.
P0603, P0607	ECM	-	-	-	-	-	-	-
P0603, P0607		x	x	-	-	-	-	ASCD operation may be deactivated.
P0604, P0605, P0606		-	-	-	-	-	-	-
P0604, P0605, P0606		-	-	x	-	-	-	ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
P060A		-	-	x	-	-	-	ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
P060A		x	x	x	-	-	-	ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring. ASCD operation may be deactivated.
P060B, P061B		-	-	x	-	-	-	ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
P060C		-	-	x	-	-	-	-
P062B		-	-	-	-	-	-	-
P062B		x	x	-	x	-	-	-
P062D, P062E		x	-	x	x	-	-	-
P0641	Sensor power supply	-	-	x	x	-	-	ECM stops the electric valve timing control. (The camshaft returns to the position of most retard angle.)
P0641		-	-	x	x	x	-
P0643		-	-	x	-	-	-	ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
P10C0, P10C1, P10C2, P10C3, P10C4, P10C5, P10C8, P10C9, P10CA, P10CB, P10CC, P10CD	Direct fuel injector	x	-	x	x	-	-	-
P1197	Out of gas	-	-	x	-	-	-	-
P119A, P119B, P119C	Fuel pressure sensor	x	-	-	x	-	-	-
P1233, P2101	Electric throttle control	-	-	x	-	-	-	ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
P1236, P2118	Throttle control motor	-	-	x	-	-	-	ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
P1238, P2119	Electric throttle control actuator	x	x	-	-	-	-	-
P1238, P2119	Electric throttle control actuator	-	-	x	-	-	-	ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
P1290, P2100, P2103	Throttle control motor relay	-	-	x	-	-	-	ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
P1575, P1805	Brake switch	-	-	-	-	-	-	ECM controls the electric throttle control actuator by regulating the throttle opening to a small range. Therefore, acceleration will be poor.
								Vehicle condition	Driving condition
								When engine is idling	Normal
								When accelerating	Poor acceleration
P2004	Intake manifold runner control valve	x	x	x	x	-	-	-
P2008		x	x	x	x	x	x
P2014, P2016, P2017, P2018		-	-	x	-	-	-
P2122, P2123, P2127, P2128, P2138	Accelerator pedal position sensor	-	-	x	-	-	-	-
P23E9	Intake camshaft position sensor (electric intake valve timing control signal)	-	-	x	x	-	-	ECM stops the electric valve timing control. (The camshaft returns to the position of most retard angle.)
P23EA, P2614, P2615		-	-	x	x	x	-
P23EB, P2616		-	-	x	x	-	-
P2617, P2618	Crankshaft position sensor (electric intake valve timing control signal)	-	-	x	x	-	-	ECM stops the electric valve timing control. (The camshaft returns to the position of most retard angle.)
P2619		-	-	x	x	x	-
P25DF, P25E8, P34AC, P34AD, P34B0, P34B1	Electric intake valve timing control actuator	-	-	x	x	-	-	ECM stops the electric valve timing control. (The camshaft returns to the position of most retard angle.) NOTE: Normal bank transitions intermediate F/S valve timing.
P34C4, P34C5	Electric intake valve timing control actuator	-	-	x	x	-	-	ECM stops the electric valve timing control. (The camshaft returns to the position of most retard angle.)
P34C8	Electric intake valve timing control module	-	-	x	x	-	-	ECM stops the electric valve timing control. (The camshaft returns to the position of most retard angle.)
P34C8	Electric intake valve timing control module	-	-	x	x	x	-

IDLE START/STOP SYSTEM

Description

When a DTC is detected, the start/stop indicator lamp blinks slowly and the start/stop system operation is prohibited. When ECM detects error while operating the idle start/stop system, ECM restarts the engine. Check each DTC code and perform inspection and repair work in accordance with each trouble diagnosis procedure. Refer to DTC Index .