Fail-safe (Turbo low pressure models)

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
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.
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. Engine output control 1: Driving at 70 km/h or more is possible. Engine output control 2: Driving at 40 km/h 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.
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	Stratified charge combustion control at starting	No stratified charge combustion at starting (cold start).
	Idle speed control	Stops feedback control of idle speed and controls with specified speed.
	Recovery speed control at decelerating	Stops recovery speed control by the fuel cut at decelerating and controls with specified speed.
	Ignition timing correction control	Partially controls ignition timing control.
	Retardation control	Controls ignition timing delay control in the intermediate water temperature range.

Fail Safe Pattern

Pattern	Fail safe mode
A	Traveling control mode	Accelerator angle variation control
B		Engine output control 1
C		Engine output control 2
D	Device fix mode
E	Combustion control mode	Stratified charge combustion control at starting
F		Idle speed control Recovery speed control at decelerating Idle neutral control*
G		Ignition timing correction control Retardation control

*: Not applicable

Fail Safe List

x: Applicable -: Not applicable

DTC No.	Detected items	Vehicle behavior
		Pattern							Others
		A	B	C	D	E	F	G	Others
U0122	CAN communication line	x	-	-	-	x	-	-	-
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	-
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	-
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	-	-	-	-
P0046 P004B	Electric wastegate actuator motor	-	x	-	x	-	-	-	ECM stops the electric wastegate actuator control. (Wastegate valve opens)
P0078 P0084	Exhaust valve timing control solenoid valve	-	-	-	x	-	-	-	-
P0087 P0088	Fuel rail pressure control	x	-	-	x	x	-	-	-
P0087 P0088	Fuel rail pressure control	x	-	-	-	x	-	-	-
P0090	High pressure fuel pump	x	-	-	x	x	-	-	-
P0101 P010B	Mass air flow sensor	x	-	-	-	x	-	-	-
P0101 P010B		-	x	-	x	-	-	x	-
P0102 P0103 P010C P010D		-	x	-	x	-	-	x	-
P0117 P0118	Engine coolant temperature sensor	-	-	-	-	-	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	-	-
P0190	Fuel rail pressure sensor	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	-	-	-
P0234 P1334	Turbocharger system	-	x	-	x	-	-	-	-
P0235 P0237 P0238 P0241 P0242	Turbocharger boost sensor	-	x	-	x	-	-	-	-
P0300 P0301 P0302 P0303 P0304 P0305 P0306	Misfire	x	-	-	-	-	x	-	-
P0335	Crankshaft position sensor	-	-	-	x	x	-	-	-
P0335	Crankshaft position sensor	-	-	-	x	-	x	-	-
P0340 P0345	Intake camshaft position sensor	-	-	-	x	x	-	-	-
P0340 P0345		-	-	-	x	-	x	-	-
P1140 P1145		x	-	-	x	-	-	x	-
P0365 P0390	Exhaust camshaft position sensor	-	-	-	x	-	-	-	-
P0500	Vehicle speed sensor	x	-	-	-	-	x	-	-
P0524	Engine oil pressure	-	-	-	-	-	-	-	ECM illuminates engine oil pressure warning lamp on the combination meter. Engine speed will not rise more than 4, 000rpm due to the fuel cut. Fail-safe is canceled when ignition switch OFF → ON.
P0603 P0607	ECM	-	-	-	-	-	-	-	-
P0603 P0607		-	x	-	-	-	-	-	ASCD operation may be deactivated.
P0604		-	-	-	x	-	-	-	ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
P0605		-	-	-	-	-	-	-	-
P0605		-	-	-	x	-	-	-	ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
P0606		-	-	-	-	-	-	-	-
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	-	-	-	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		-	-	-	x	-	-	-	ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
P062B		-	-	-	-	-	-	-	-
P062B		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	-
P0643		-	-	-	x	-	-	-	-
P14A4 P14A5	Charge air cooler cooling electric water pump	-	-	-	-	-	-	-	Charge air cooler cooling electric water pump runs at the command speed.
P14A7		-	-	-	-	-	-	-	Charge air cooler cooling electric water pump runs at full speed.
P14A9 P14AA P14AC		-	-	-	-	-	-	-	Charge air cooler cooling electric water pump stops.
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	-	-	-	-	-	-
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.
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
P2122 P2123 P2127 P2128 P2138	Accelerator pedal position sensor	-	-	-	x	-	-	-	-
P23E9 P23EA P2614 P2615	Intake camshaft position sensor	-	-	-	x	x	-	-	ECM stops the electric valve timing control. (The camshaft returns to the position of most retard angle.)
P23E9 P23EA P2614 P2615		-	-	-	x	-	x	-
P23EB P2616 P2617 P2618		-	-	-	x	x	-	-
P2619		-	-	-	x	-	x	-
P2562 P2566 P2586 P2590	Electric wastegate control valve position sensor	-	x	-	x	-	-	-	ECM stops the electric wastegate actuator control. (Wastegate valve opens)
P2563 P2564 P2565 P2587 P2588 P2589	Electric wastegate control valve position sensor	-	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	-