Fail-Safe Chart

HINT:

If any of the following codes are recorded, the ECM enters the fail-safe mode.

FAIL-SAFE CHART

DTC	Item	Fail-safe Operation	Fail-safe Deactivation Conditions
P0031, P0032, P0051 and P0052	Air Fuel Ratio (A/F) Sensor Heater	ECM turn off A/F Sensor heater.	Ignition switch OFF
P0037, P0038, P0057 and P0058	Heated Oxygen (HO2) Sensor Heater	ECM turn off HO2 Sensor heater.	Ignition switch OFF
P0100, P0102 and P0103	Mass Air Flow (MAF) Meter	The ignition timing is calculated from engine RPM and throttle position.	"Pass" condition detected
P0110, P0112 and P0113	Intake Air Temperature (IAT) Sensor	The ECM detects that IAT is 20°C (68°F).	"Pass" condition detected
P0115, P0117 and P0118	Engine Coolant Temperature (ECT) Sensor	The ECM detects that ECT is 80°C (176°F).	"Pass" condition detected
P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2102, P2103, P2111, P2112, P2118, P2119 and P2135	Electronic Throttle Control System (ETCS)	The ECM cuts off the throttle actuator current and the throttle valve returns to 7° throttle position by the return spring. The ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing in accordance with the accelerator pedal opening angle to continue at a minimal speed*.	"Pass" condition is detected and then the ignition switch is turned OFF.
P0327, P0328, P0332 and P0333	Knock Sensor	The ECM sets the ignition timing to the maximum retard position.	Ignition switch OFF
P0351 to P0358	Igniter	Fuel-cut	"Pass" condition detected.
P2120, P2121, P2122, P2123, P2125, P2127, P2128 and P2138	Accelerator Pedal Position (APP) Sensor	The APP sensor has 2 sensor elements (main and sub). If either of the elements malfunctions, the ECM controls the engine with other elements. If both of the elements malfunction, ECM regards accelerator pedal as being released. As a result, throttle valve is closed and engine idles.	"Pass" condition is detected and the ignition switch is turned OFF
P2440 and P1441 and/or P1444	Air Injection (Al) system	Restrict the throttle opening angle: Ga is 30 g/sec. or less	"Pass" condition detected
P1441 and P1444	Air Injection (Al) system	Restrict the throttle opening angle: Ga is 50 g/sec. or less	"Pass" condition detected
P1441, P1444	Air Injection (Al) system	Restrict the throttle opening angle: Ga is 100 g/sec. or less	"Pass" condition detected
P2430, P2431, P2432, P2433	Pressure Sensor	Restrict the throttle opening angle: Ga is 50 g/sec. or less	"Pass" condition detected
HINT: *: 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.