Fail-Safe Chart

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

DTC No.	Component	Fail-Safe Operation	Fail-Safe Deactivation Condition
P0011 P0015 P0021 P0025	VVT system	Idle up (Control of combustion worsening) Stopping fuel-cut control	Pass condition detected
P0031 P0032 P0051 P0052	Air fuel ratio sensor heater	ECM turns off air fuel ratio sensor heater	Ignition switch off
P0037 P0038 P0057 P0058	Heated oxygen sensor heater	ECM turns off heated oxygen sensor heater	Ignition switch off
P0102 P0103	Mass air flow meter	ECM calculates ignition timing according to engine speed and throttle valve position	Pass condition detected
P0112 P0113	Intake air temperature sensor	ECM estimates intake air temperature sensor to be 20°C (68°F)	Pass condition detected
P0115 P0117 P0118	Engine coolant temperature sensor	ECM estimates engine coolant temperature sensor to be 80°C (176°F)	Pass condition detected
P0120 P0121 P0122 P0123 P0220 P0222 P0223 P0604 P0606 P060A P060B P060D P060E P0657 P1607 P2102 P2103 P2111 P2112 P2118 P2119 P2135	Electronic throttle control system	The ECM cuts off throttle actuator current and the throttle valve returns to 6° throttle position by return spring The ECM then adjusts engine output by controlling fuel injection (intermittent fuel cut) and ignition timing in accordance with accelerator pedal opening angle to allow vehicle to continue at minimal speed*1	Pass condition detected and then ignition switch turned off
P0300 P0301 P0302 P0303 P0304 P0305 P0306 *2	Fuel injector assembly Electronic throttle control system	When a catalyst-damaging misfire occurs (MIL blinking), the following fail-safe operation is performed for catalyst overheat malfunction prevention. Under a low load and at a low engine speed: Fuel cut is performed on the malfunctioning cylinder. Under a high load and at a high engine speed: Throttle valve opening angle control is performed. Fuel cut is performed on all cylinders or the malfunctioning cylinder.	Pass condition detected and then ignition switch turned off
P0327 P0328 P0332 P0333	Knock sensor	The ECM sets ignition timing to maximum retard	Ignition switch off
P0351 P0352 P0353 P0354 P0355 P0356	Ignition coil assembly	The ECM cuts the fuel	Pass condition detected
P2120 P2121 P2122 P2123 P2125 P2127 P2128 P2138	Accelerator pedal position sensor	The accelerator pedal position sensor has 2 sensor circuits: Main and Sub. If either circuit malfunctions, the ECM controls engine using the other circuit 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
P2237 P2238 P2239 P2240 P2241 P2242 P2252 P2253 P2255 P2256	Air Fuel Ratio Sensor	Air fuel ratio feedback control is stopped. Current to the air fuel ratio sensor heater is cut.	Pass condition detected and then ignition switch turned off

NOTE:

*1: The vehicle can be driven slowly when the accelerator pedal is depressed slowly. If the accelerator pedal is depressed quickly, the vehicle may speed up and slow down erratically.
*2: Misfire related fail-safe operations occur when catalyst overheat malfunctions occur.