SFI SYSTEM FAIL-SAFE CHART

If any of the following DTCs are output, the ECM enters fail-safe mode to allow the vehicle to be driven temporarily.


DTC Code	Component	Fail-Safe Operation	Fail-Safe Deactivation Condition
P0011 and P0015	VVT system	Idling up is performed. The valve timing of bank that is operating normally is fixed at maximum retard angle.	Pass condition detected and then ignition switch off
P0031, P0032 and P101D	Air fuel ratio sensor heater	The ECM turns off air fuel ratio sensor heater.	Ignition switch off
P0037, P0038 and P102D	Heated oxygen sensor heater	The ECM turns off heated oxygen sensor heater.	Ignition switch off
P0102 and P0103	Mass air flow meter	The ECM calculates ignition timing according to engine speed and throttle valve position.	Pass condition detected
P0107 and P0108	Vacuum sensor	The intake air pressure is adjusted using a value calculated according to the throttle valve opening angle and engine speed. The engine speed is limited to 3000 rpm or less.	Pass condition detected
P0112 and P0113	Intake air temperature sensor	The ECM estimates the intake air temperature to be 20°C (68°F).	Pass condition detected
P0115, P0117 and P0118	Engine coolant temperature sensor	The ECM estimates the engine coolant temperature sensor to be 80°C (176°F).	Pass condition detected
P0136	Heated oxygen sensor	Air fuel ratio feedback control is stopped.	Ignition switch off
P0120, P0121, P0122, P0123, P0220, P0222, P0223, P0604, P0606, P060A, P060B, P060D, P060E, P0657, P1607, P2102, P2103, P2111, P2112, P2118, P2119 and P2135	Electronic throttle control system	The ECM cuts off throttle actuator current and the throttle valve is returned to a 5.5° throttle position by return spring. ECM then adjusts engine output by controlling fuel injection (intermittent fuel-cut) and ignition timing in accordance with the accelerator pedal angle to allow vehicle to continue at minimal speed*1.	Pass condition detected and then ignition switch turned off
P0327 and P0328	Knock sensor	The ECM sets ignition timing to maximum retard.	Ignition switch off
P0351, P0352, P0353 and P0354	Igniter	The ECM cuts the fuel.	Pass condition detected
P1046, P1047, P1049, P104A, P1055, P2646, P2647, P2648, P2649, P264A and U011B	VALVEMATIC system	Power to the continuously variable valve lift controller assembly is cut.*2 VVT (IN): The adjustable range is limited. VVT (EX): Fixed to a set value.	Ignition switch off
P2120, P2121, P2122, P2123, P2125, P2127, P2128 and P2138	Accelerator pedal position sensor	The accelerator pedal position sensor has 2 sensor circuits: Main and Sub. If either circuit malfunctions, the ECM limits the engine output. If both circuits malfunction, the ECM regards the accelerator pedal as being released. As a result, the throttle valve is closed and the engine idles.	Pass condition detected and then ignition switch turned off

Note:

*1: The vehicle can be driven slowly when the accelerator pedal is depressed firmly and slowly. If the accelerator pedal is depressed quickly, the vehicle may speed up and slow down erratically.
*2: When the engine continues to run while power to the continuously variable valve lift controller assembly is cut, the VALVEMATIC duration gradually changes to the minimum duration. When the duration reaches the minimum, the vehicle speed cannot exceed 10 to 60 km/h (6 to 37 mph).