Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - 1GR-FE ENGINE CONTROL
SFI 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 |
| P0011, P0021, P0015 and P0025 | VVT system | Idle up (Control of combustion worsening). Stopping fuel-cut control. | Pass condition detected |
| P0031, P0032, P0051 and P0052 | Air Fuel Ratio Sensor Heater | The ECM turns off the air fuel ratio sensor heater. | Ignition switch off |
| P0037, P0038, P0057 and P0058 | Heated Oxygen Sensor Heater | The ECM turns off the heated oxygen sensor heater. | Ignition switch off |
| P0102 and P0103 | Mass Air Flow Meter | The ECM calculates the ignition timing according to the engine speed and throttle valve position. | 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 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 and P2135 | Electronic Throttle Control System (ETCS) | The ECM cuts off the throttle actuator current and the throttle valve returns to a throttle opening angle of 7° 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 a minimal speed.*1 | Pass condition detected and then ignition switch turned off |
| P0300, P0301, P0302, P0303, P0304, P0305 and P0306*2 | Fuel Injector Electronic Throttle Control System (ETCS) | When misfire occurs, a fuel-cut is performed to prevent malfunctions due to the catalyst overheating. During normal load and at a normal engine speed (MIL is blinking): - Fuel-cut is performed on the malfunctioning cylinder. During high load and at a high engine speed (MIL is blinking): - Throttle valve opening angle control is performed. - Fuel cut for all cylinders or for the malfunctioning cylinder is performed. | Pass condition detected and then ignition switch turned off |
| P0327, P0328, P0332 and P0333 | Knock Sensor | The ECM sets the ignition timing to maximum retard. | Ignition switch off |
| P0351 to P0356 | Igniter | The ECM cuts the fuel. | Pass condition detected |
| P0504 | Stop Light Switch | The accelerator pedal opening angle is fixed when there is a accelerator pedal malfunction or history of a malfunction. | Pass condition detected |
| 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 of the 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 and 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 |
| P2432, P2433, P2437, P2438, P2440, P2442 and P2445 | Secondary Air Injection System | Throttle valve opening angle control is performed. | Pass condition detected |
- HINT:
*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: Misfire related fail-safe operations occur when catalyst overheat malfunctions occur.