Sfi System (W/O Secondary Air Injection System) Fail-Safe Chart

Engine Hybrid System. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
2Tr-Fe Engine Control. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

Sfi System (W/O Secondary Air Injection System) -- 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
Component
Fail-Safe Operation
Fail-Safe Deactivation Condition
P0100, P0102 and P0103
Mass Air Flow Meter
ECM calculates the ignition timing according to the engine speed and throttle valve position.
Pass condition detected
P0110, P0112 and P0113
Intake Air Temperature Sensor
ECM estimates the intake air temperature to be 20°C (68°F).
Pass condition detected
P0115, P0117 and P0118
Engine Coolant Temperature Sensor
ECM estimates the engine coolant temperature to be 80°C (176°F).
Pass condition detected
P0120, P0121, P0122, P0123, P0220, P0222, P0223, P0604, P0606, P0607, P0657, P2102, P2103, P2111, P2112, P2118, P2119 and P2135
Electronic Throttle Control System (ETCS)
ECM cuts off the throttle actuator current and the throttle valve returns to a throttle position of 6.5° 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 position to allow the vehicle to continue at minimal speed.*
Pass condition detected and then ignition switch turned off
P0327 and P0328
Knock Sensor
ECM sets the ignition timing to maximum retard.
Ignition switch off
P0351 to P0354
Igniter
ECM cuts the fuel.
Pass condition detected
P0504
Stop Light Switch Assembly
Accelerator pedal angle is fixed.
Pass condition detected
P2120, P2121, P2122, P2123, P2125, P2127, P2128 and P2138
Accelerator Pedal Position Sensor
Accelerator pedal position sensor has 2 sensor circuits: Main and Sub.
If either circuit malfunctions, the ECM controls the engine using the other circuit.
If both circuits malfunction, the ECM regards the accelerator pedal as being released. As a result, the throttle valve closes and the engine idles.
Pass condition detected and then ignition switch turned off
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.