Fail-Safe/Backup Function (Limp-In Mode)

Malfunctioning item Control contents during malfunction

Volume air flow sensor 1. Uses the throttle position sensor signal and engine speed signal (crankshaft position sensor signal) for basic injector drive timing an basic ignition timing from the preset mapping.
2. Fixes the AC motor in the appointed position so idle air control is not performed.

Intake air temperature sensor Controls as if the intake air temperature is 25°C (770 F).

Throttle position sensor (TPS) No increase in fuel injection amount during acceleration due to the unreliable throttle position sensor signal.

Engine coolant temperature sensor Controls as if the engine coolant temperature is 8O°C (176°F).

Camshaft position sensor 1. Injects fuel into the cylinders in the order 1-3-4-2 with irregular timing. (After the ignition switch is turned to ON, the No. 1 cylinder top dead center is not detected at all.)
2. Cuts off the fuel supply 4 seconds after a problem is detected. (After the ignition switch is turned to ON, the No. 1 cylinder top dead center is not detected at all.)

Barometric pressure sensor Controls as if the barometric pressure is 101 kPa (30 in.Hg) (sea level).

Knock sensor Switches the ignition timing from ignition timing for high octane to ignition timing for standard octane fuel.

Ignition coil, power transistor unit Cuts off the fuel supply to cylinders with an abnormal ignition signal.

Heated oxygen sensor Air/fuel ratio closed loop control is not performed

Heated oxygen sensor Performs the closed loop control of the air/fuel ratio by using only the signal of the heated oxygen sensor (front) installed on the front side of the catalytic converter.

Misfire detection The ECM stops supplying fuel to the cylinder with the highest misfiring rate if a misfiring that could damage the catalytic converter is detected.

Turbocharger wastegate actuator Shuts off fuel in case of overcharge.

Generator FR terminal Does not restrict the generator output with respect to electrical load.